Automated Defence plans for secure Grid Operation prepared by

Copy to:

1) Member (Power Systems), CEA, New Delhi

2) Director (OM), Ministry of Power, New Delhi

3) Director (Operations), POWERGRID, Gurgaon

4) Member Secretary NRPC/ERPC/WRPC/SRPC/NERPC

5) GM NRLDC/ERLDC/WRLDC/SRLDC

6) AGM NERLDC

7) Secretary, CERC, New Delhi

1

Automated Defence Plans for secure operation of the Grids

1.0 A 12-point resolution was adopted in the meeting taken by

Secretary (Power) on 6th August 2012 with Chief Secretaries of

Northern Region states. One of the points (No. 11) was that

‘POSOCO would evolve a contingency load shedding protocol,

especially when non frequency related load shedding is required.’

2.0 A draft template of the same has been prepared considering

various scenarios when the system could be under stress. There

could be ten different scenarios outlined below.

i. Overdrawals: All constituents shall normally maintain their

withdrawal from the Grid strictly as per schedule. In the event

of any deviation of actual withdrawal from schedule greater

than a set amount when the system frequency is falling below

50 Hz, pre-identified radial load/feeders constituting in different

identified Groups shall be automatically disconnected on

rotational basis by the command automatically generated from

the Programmable Logic Controller (PLC) based Expert System

located at SLDCs/RLDCs.

ii. Over-injection/Under-drawal: Power generating stations shall

normally maintain their injection into the Grid strictly as per

schedule. In case of state utilities the under-drawal is also not

desirable as it could lead to problems in other parts of the grid.

Manual generation reduction through secondary control may be

resorted to in Stage-I followed by an automatic signal sent from

the PLC based Expert System installed at SLDCs/RLDCs to the

power stations within the state which can be used for

automatically reducing the generation.

2

iii. Under-voltage: For maintaining system voltage above the

minimum limits specified as per IEGC, Automatic Under Voltage

Load Shedding scheme (AUVLS) shall be effected. Bus voltage of

400 kV and 220 kV nodes shall be monitored for this purpose.

The UVLS shall be a multi-stage scheme and would trip the

designated group of loads in case voltage falls below 200

kV/380 kV at the node.

iv. Line loading crossing set limits: Whenever a trunk line loading

crosses normal operating limits endangering system security,

designated loads shall be disconnected by operation of System

Protection Schemes (SPS). In Stage-I Manual disconnection shall

be resorted to by the SLDCs/RLDCs. In Stage-II automatic load

disconnection shall be affected through PLC based Expert

System.

v. Power flows exceeding Total Transfer Capability (TTC):

Automatic load disconnection shall be effected in case inter-

area flows exceed TTC limits by greater than 100 MW. Based on

measurements obtained at RLDCs SCADA automatic load

shedding or generation reduction shall be effected.

vi. Loss of generation exceeding 1000 MW or loss of high capacity

transmission corridor: In case of sudden loss of generation in

excess of 1000 MW or loss of high capacity transmission

corridor, automatic control action to be initiated through

System Protection Schemes (SPS).

vii. Angular separation: In case of angular separation between any

two identified set of nodes exceeding the cut off value (based

on system studies with data obtained from PMUs/WAMS),

automatic load disconnection of Groups on rotational basis

would be automatically generated from the PLC based Expert

System located at NLDC/RLDCs.

3

viii. Flat frequency Under Frequency Relays (UFRs): Four stages of

Automatic UFR load relief as decided in respective RPC forum

with Stage-I set at 49 Hz, Stage-II set at 48.8 Hz, Stage-III set at

48.6 Hz and Stage-IV set at 48.4 Hz.

ix. RATE OF change of frequency or df/dt relays: In case of sudden

major loss of generation or isolation of part or full regional

system especially if such grid/system is importing power from

adjacent systems the rate of change of frequency protection

system shall automatically disconnect pre-identified feeders in

its control area.

x. Islanding schemes: Automatic islanding schemes at 47.9 Hz or

below through UFRs to isolate power stations with matching

loads and dynamic reactive reservesas finalized in respective

RPC forums.

A draft template for every state in each region is enclosed in the

Annexures. The template covers the ten different scenarios

mentioned above.

Exhibit 1: Automated Defence Plan for Northern Region

Exhibit 2: Automated Defence Plan for Eastern Region

Exhibit 3: Automated Defence Plan for Western Region

Exhibit 4: Automated Defence Plan for Southern Region

Exhibit 5: Automated Defence Plan for North Eastern Region

These can be finalized in consultation with the states and

generating companies at RPC level. The ultimate objective of the

entire exercise is to have a self-healing mechanism in the grid.

3.0 While the Exhibits enclosed have been mainly prepared at RLDC

level, it is suggested that a uniform methodology is adopted for

feeder selection, grouping etc. so that maximum flexibility is

4

available during implementation of the scheme. A suggested

outline could be as under:

3.1 Identify the maximum requirement of load in each state, say A,

that needs to be shed. A suggested figure is 60% of the peak load.

If the state’s peak load is 10000 MW then ‘A’ would be 6000 MW.

3.2 Divide ‘A’ MW into 100 MW groups so that we get approximately

A/100 groups. In this example we would get sixty (60) groups

numbered as Group 1, Group 2 and so on up to Group 60.

3.3 The groups should be geographically spread throughout the state

and not confined to a particular zone or pocket.

3.4 For each group or a set of groups, the nearest geographically

connected 220 kV or 400 kV node would be identified/listed. For

instance Node 1 might contain Groups 1 to 3, Node 2 might

contain Groups 4 to 6 and so on. The groups 1 to 3 should be

geographically and electrically adjacent to each other.

3.5 All state owned coal fired and gas power generating stations above

250 MW would also be identified for automatic generation

regulation actions. For instance in the example taken we could

have ten (10) such power stations from say Station A to Station J.

4.0 Typical automatic load shedding matrix:

For the ten identified schemes at S no. 2 above, the groups could

be selected from these sixty (60) and the typical automatic load-

shedding matrix could be as tabulated below considering the need

5

for rotational load shedding and the assumption that generally not

more than two contingencies would arise simultaneously.

S

no

Logic Control Action

1 Overdrawal > 12% of schedule

or 150 MW

(PLC based scheme at LDCs)

On day 1, Group 1 load is shed in the first instance of violation

followed by Group 2 in the second instance and so on say upto

Group 5 if there are five (5) violations

On day 2, Group 6 would be shed for the first violation followed

by Group 7 and so on. After Group 60, Group 1 would start.

2 Under-drawals > 12% of

schedule or 150 MW

(PLC based scheme at LDCs)

On day 1, signal would be sent to Power station ‘A’ in the first

instance followed by station ‘B’ in the second instance and so

on say upto Power station ‘C’ if there are three (3) violations.

On day 2, signal would be sent to the Power station ‘D’ in the

first instance and so on.

3 Voltage <200 kV for more than

5 minutes

(Local or PLC installed at the

nodes identified)

Under Voltage Load Shedding (UVLS) Relays would be installed

at each of the twenty nodes. In case of UV at node 1 shed load

in Group 1 and if the UV persists, shed Group 2 and so on.

4 ICT/line loading crossing limits

(Local or PLC installed at select

locations).

Choose appropriate Groups from 1 to 60 for each set of

ICTs/lines.

5 Flows crossing TTC and

overdrawal

(PLC based scheme at RLDCs)

Choose Group 1 in state 1, Group 1 in state 2 and so on for the

first instance violation followed by Group 2 in state 1, Group 2

in state 2 and so on Day 1.

On Day 2 move to the group following day 1 for the respective

states.

6 Loss of generation > 1000 MW.

(PLC based scheme installed at

power station end)

Choose appropriate ten (10) groups adjacent to the power

station. Further the PLC can also be used to secure the power

station in case of depletion of the network emanating from the

power station.

6

S

no


7 Angular difference

(PLC based scheme at RLDC

level)

Choose appropriate two groups for each state located

downstream of the angle pair.

8 Under-Frequency Relays

UFR1: 49.0 Hz

UFR2: 48.8 Hz

UFR3: 48.6 Hz

UFR4: 48.4 Hz

20% of identified loads for shedding………….12 Groups

20% of identified loads”””””””””””……………12 Groups

30% of identified loads………………………………18 Groups

30% of identified loads………………………………18 Groups

9 Df/dt relays

49.9 Hz with 0.1 Hz/sec slope

49.9 Hz with 0.2 Hz/sec slope

Overlap with UFR3 above

Overlap with UFR4 above

10 Islanding at 47.9 Hz

Power station specific schemes to be formulated.

1

INDEX

Page no

EXHIBIT 1- AUTOMATED DEFENCE PLAN FOR NORTHERN REGION…..…………………..…………………………5

Annex 1.1- Automated defence plan summary for secure operation of grids…….Punjab System…….……….6

Annex 1.2- Automated defence plan summary for secure operation of grids…… Haryana System………….08

Annex 1.3- Automated defence plan summary for secure operation of grids…….Rajasthan System……….11

Annex 1.4- Automated defence plan summary for secure operation of grids…….Delhi System……………….14

Annex 1.5- Automated defence plan summary for secure operation of grids……Uttarpradesh System…..16

Annex 1.6- Automated defence plan summary for secure operation of grids…….Uttarakhand System…..19

Annex 1.7- Automated defence plan summary for secure operation of grids…….J&K System…………………21

Annex 1.8- Automated defence plan summary for secure operation of grids…….HP System………………….23

Annex 1.9- Automated defence plan summary for secure operation of grids…….Chandigarh System…….25

Annex I.A- Punjab -Feeders list for Remote tripping…………………………….…………………………….…………………27

Annex I.B- Punjab- List of power stations for generation regulation……………….…………………………….………28

Annex I.C- Punjab –Nodes identified for Under Voltage Load Shedding………….…………………………….………29

Annex I.D- Punjab –Feeders selected for ICT/ line loading crossing normal operating limits………….……..30

Annex I.E- Punjab – Feeders selected for loss of generation >1000MW/

High capacity corridor…………………………………………………………………………………………….31

Annex I.F- Punjab –Power stations selected for Islanding at 47.9Hz……………..………….…………………………..31

Annex II.A- Haryana -Feeders list for Remote tripping…………………………….…………………………….………………32

Annex II.B- Haryana List of power stations for generation regulation……………….…………………………….…….33

Annex II.C- Haryana –Nodes identified for Under Voltage Load Shedding………….…………………………….……34

Annex II.D- Haryana – Feeders selected for ICT/ line loading crossing normal operating limits……………..35

Annex II.E- Haryana – Feeders selected for loss of generation >1000MW/

High capacity corridor…………………………………………………………………………………………………………..36

Annex II.F- Haryana –Power stations selected for Islanding at 47.9Hz……………..………….………………………..37

Annex III.A- Rajasthan -Feeders list for Remote tripping…………………………….…………………………….…………..38

Annex III.B- Rajasthan - List of power stations for generation regulation……………….……………………………..40

Annex III.C- Rajasthan –Nodes identified for Under Voltage Load Shedding………….………………………………41

Annex III.D- Rajasthan – Feeders selected for ICT/ line loading crossing normal operating limits………….42

Annex III.E- Rajasthan – Feeders selected for loss of generation >1000MW/

High capacity corridor………………………………………………………………………………………………………..43

Annex III.F- Rajasthan –Power stations selected for Islanding at 47.9Hz……………..………….……………………44

2

Annex IV.A- Delhi -Feeders list for Remote tripping…………………………….…………………………….………………..45

Annex IV.B- Delhi List of power stations for generation regulation……………….…………………………….………46

Annex IV C- Delhi –Nodes identified for Under Voltage Load Shedding………….…………………………….……..47

Annex IV.D- Delhi – Feeders selected for ICT/ line loading crossing normal operating limits………….……48

Annex IV.E- Delhi – Feeders selected for loss of generation >1000MW/

High capacity corridor……………………………………………………………………………………………………….48

Annex IV.F- Delhi –Power stations selected for Islanding at 47.9Hz……………..………….………………………….48

Annex V.A- Uttarpradesh -Feeders list for Remote tripping…………………………….………………………………….49

Annex V.B- Uttarpradesh List of power stations for generation regulation……………….………………………..51

Annex V C- Uttarpradesh –Nodes identified for Under Voltage Load Shedding………….……………………….52

Annex V.D- Uttarpradesh – Feeders selected for ICT/ line loading crossing normal operating limits…..53

Annex V.E- Uttarpradesh – Feeders selected for loss of generation >1000MW/

High capacity corridor……………………………………………………………………………………………………….54

Annex V.F- Uttarpradesh –Power stations selected for Islanding at 47.9Hz……………..………….……………..55

Annex VI.A- Uttarakhand -Feeders list for Remote tripping…………………………….…………………………….……56

Annex VI.B- Uttarakhand List of power stations for generation regulation……………….………………………..56

Annex VI C- Uttarakhand –Nodes identified for Under Voltage Load Shedding………….………………………..57

Annex VI.D- Uttarakhand Feeders selected for ICT/ line loading crossing normal operating limits………57

Annex VI.E- Uttarakhand – Feeders selected for loss of generation >1000MW/

High capacity corridor………………………………………………………………………………………………………58

Annex VI.F- Uttarakhand –Power stations selected for Islanding at 47.9Hz……………..………….……………..58

Annex VII.A- Jammu & Kashmir -Feeders list for Remote tripping…………………………….…………………………59

Annex VII.B- Jammu & Kashmir List of power stations for generation regulation……………….……………….60

Annex VII C- Jammu & Kashmir –Nodes identified for Under Voltage Load Shedding………….………………60

Annex VII.D- J & K– Feeders selected for ICT/ line loading crossing normal operating limits……………….61

Annex VII.E- Jammu & Kashmir – Feeders selected for loss of generation >1000MW/

High capacity corridor…………………………………………………………………………………………………….62

Annex VII.F- Jammu & Kashmir –Power stations selected for Islanding at 47.9Hz……………..………….…….62

Annex VIII.A- Himachal Pradesh -Feeders list for Remote tripping…………………………….………………………..63

Annex VIII.B- Himachal Pradesh List of power stations for generation regulation……………….………………63

Annex VIII C- Himachal Pradesh –Nodes identified for Under Voltage Load Shedding………….……………..64

Annex VIII.D- HP – Feeders selected for ICT/ line loading crossing normal operating limits ………….……64

Annex VIII.E- Himachal Pradesh – Feeders selected for loss of generation >1000MW/

High capacity corridor…………………………………………………………………………………………………….65

Annex VIII.F- Himachal Pradesh –Power stations selected for Islanding at 47.9Hz……………..………….…..65

Annex IX.A- Chandigarh -Feeders list for Remote tripping…………………………….…………………………….……..66

Annex IX.B- Chandigarh List of power stations for generation regulation……………….………………………….66

3

Annex IX C- Chandigarh –Nodes identified for Under Voltage Load Shedding………….…………………………66

Annex IX.D- Chandigarh – Feeders selected for ICT/ line loading crossing normal operating limits ……67

Annex IX.E- Chandigarh –Feeders selected for loss of generation >1000MW/

High capacity corridor……………………………………………………………………………………………………..67

Annex IX.F- Chandigarh –Power stations selected for Islanding at 47.9Hz……………..………….……………….67

Annex X.A- Regional Level- Feeders selected in case of loss of generation >1000MW /loss of

high capacity corridor………………….………………………………………………………………………………...68

Annex XI- UFR & df/dt setting…………………….………………………………………………………………………………………69

EXHIBIT 2- AUTOMATED DEFENCE PLAN FOR EASTERN REGION…………………………………………71

Annex 2.1- Automated defence plan summary for secure operation of grids…….Bihar System………….72

Annex 2.2- Automated defence plan summary for secure operation of grids…… DVC System…………….73

Annex 2.3- Automated defence plan summary for secure operation of grids…….Jharkhand System……74

Annex 2.4- Automated defence plan summary for secure operation of grids……Odisha System………….75

Annex 2.5- Automated defence plan summary for secure operation of grids……Sikkim System..…….…..76

Annex 2.6- Automated defence plan summary for secure operation of grids…….West Bengal System…77

Annex-2.A- Feeders list for Voltage crossing the limits…………………….………………………………………………….78

Annex-2.B- Key line/ICT loading crossing limits…………………….………………………………………………………………80

Annex-2.C-Action plan for TTC violation…………………….…………………………………………………………………………81 Annex- 2.D-Action Plan for Loss of Generation / High capacity corridor…………………….…………………………82 Annex 2.E-Existing UFR & df/dt setting…………………….…………………………………………………………………………..84

Annex 2.F-Islanding Schemes…………………….………………………………………………………………………………………….87

EXHIBIT 3- AUTOMATED DEFENCE PLAN FOR WESTERN REGION…………………………………………90

Annex 3.1- Automated defence plan summary for secure operation of grids……Gujarat System………….91

Annex 3.2- Automated defence plan summary for secure operation of grids……Chattisgarh System……93

Annex 3.3- Automated defence plan summary for secure operation of grids…….Maharastra System…..95

Annex 3.4- Automated defence plan summary for secure operation of grids-Madhyapradesh System…97

Annex 3.A- Regional Level- List of ISGS for generation regulation & line loading crossing

normal operating limits …….……………………………………………………………………………………………….99

4

Annex-3.B-Western Region Islanding Schemes …………………….……………………………………………………………100

Annex-3.C- GUJARAT Load Shed Scheme …………………….………………………………………………………………………101

Annex-3.D - Chattisgarh Load Shed Scheme …………………….………………………………………………………………….111 Annex-3.E - Maharastra Load Shed Scheme …………………….………………………………………………………………….115

Annex-3.F- Madhyapradesh Load Shed Scheme …………………….……………………………………………………………135

EXHIBIT 4- AUTOMATED DEFENCE PLAN FOR SOUTHERN REGION…………………………...............138 Annex 4.1-Automated defence plan summary for secure operation of grids-Andhra Pradesh System….139

Annex 4.2- Automated defence plan summary for secure operation of grids…Karnataka System………..141

Annex4.3- Automated defence plan summary for secure operation of grids…Kerala System……………….143

Annex 4.4- Automated defence plan summary for secure operation of grids…Pondycherry System…….145

Annex 4.5- Automated defence plan summary for secure operation of grids…Tamilnadu System..……..146

Annex 4.A- Feeders list for Remote tripping…………….………………………………………………………………………….148

Annex-4.B-Key Line/ICT loading crossing normal operating limits………………………………………………………..151

Annex-4.C- Annexure -B. Loss of Generation / High capacity corridor…………………….……………………………152

Annex 4.D-Angular difference exceeding cut off value …………………….………………………………………………….154

Annex 4.E- UFR & df/dt setting……………………………………………………………………………………………………………155

EXHIBIT 5- AUTOMATED DEFENCE PLAN FOR NORTH EASTERN REGION……………………………..172

Annex 5.1- Automated defence plan summary for secure operation of grids-Arunachal Pradesh………..173

Annex 5.2- Automated defence plan summary for secure operation of grids…… Assam System………….175

Annex 5.3- Automated defence plan summary for secure operation of grids……Manipur System……….177

Annex 5.4- Automated defence plan summary for secure operation of grids…….Meghalaya System…..179

Annex 5.5- Automated Haryana defence plan for secure operation of grids……Mizoram System..………182

Annex 5.6- Automated defence plan summary for secure operation of grids……Nagaland System………184

Annex 5.7- Automated defence plan summary for secure operation of grids…….Tripura System…………186

Annex 5.A- -Intra Regional - Line Loading crossing the normal operating limits, TTC violation, Loss of

Gen/High capacity corridor……………………………………………………………………………………………….188

Annex 5.B-NER-Islanding Schemes..…….……………………………………………………………………………………………….193

5

EXHIBIT 1

AUTOMATED DEFENCE PLAN FOR NORTHERN REGION

6

Annex 1.1-Automated defence plan summary for secure operation of grids…….Punjab System

S No Logic Control Action Manual or Automatic Measurements as input for control action (Local / Wide

Area)

Control Action (Local / Wide Area)

Remarks

NO

RTH

ERN

REG

ION

-PU

NJA

B

1

∆ P > 150 MW ∆ P = Actual-Schd and freq < 50 Hz

Shed load in Punjab in identified seven groups A, B, C,D,E,F &G each group constituting 150 MW or 12% of schedule .Rotation logic and sequence to be programmed at SLDC and RLDC PLCs

Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC after 15 minutes) Stage 3 : Backup (from NRLDC PLC after 20 minutes)

Wide Area : Schedules & Drawal from SCADA system at LDCs

Wide Area: signal sent from LDC to (~34 x 220 kV sub-stations in 7 groups, each group would have ~3-5 x 220 kV sub-stations and ~3-5 x 132/66 kV feeders would be identified at each substn. (Feeder list is enclosed in Annex-I.A)

Group A: Bahadurgarh, Rajpura, Nabha,Rajla,Patran all 220 kV sub-stations Group B: Barnala,Pakhowal,Amloh,Sunam all 220 kV sub-stations Group C: Moga, Ferozpur, Baghapurana,Botiawala, Sadiq all 220 kV sub-stations Group D: Muktsar, LehraMohabbat all 220 kV sub-stations Group E: Verpal, patti,, Butari, WadalaGranthian all 220 kV sub-stations Group F: Nakodar, Kartarpur,Goraya, Jamsher,JallandharBBMb, RehanaJattan all 220 kV sub-stations Group G: Laltokalan,Ropar,Kohara,Kharar,Ferozpur Road, Humbran,Jagraon,132kV Doraha all 220 kV sub-stations

2

∆ P < -150 MW and freq > 50 Hz ∆ P = Actual-Schd

Send signal to designated power stations A, B, C,D,E,F &G . Rotation logic and sequence to be programmed at SLDC and NRLDC PLC

Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC 15 minutes) Stage 3 : Backup (from NRLDC PLC in 25 minutes)


Wide Area: signal sent from LDCs to selected power stations

Power station A: RSD Power station B: Ropar Power Station C: LehraMohabbat Power Station D: Bhatinda The power stations can either wire the same for unit tripping or generation reduction through secondary control. Refer Annex-I.B

3

Voltage < 200 kV at sub-station for more than 5 minutes

Shed load at the 34 x 220 kV sub-stations identified in S no 1 above. Refer Annex-I.C

Stage 1: Alarm (208 kV) Local area:

Local area:

Under Voltage Load Shedding (UVLS).

Stage 2: Automatic (200 kV for more than 5 minutes)

Bus voltage Measurement at the 34 x 220 kV substations

34 UVLS relays required one each at the thiry four 220 kV sub-stations identified at S no. 1 above.

Stage 3: 185 kV 30 seconds

4

ICT / line loading crossing normal operating limits

Shed load in designated areas Shed load in designated

areas

Refer Annex-I.D

Stage-1: Manual (SLDC level) Stage-2; Automatic through PLC

ICT’s flow at (1) 400kV Amritsar_PG, (2) 400kV Ludhiana_PG, (3) 400kV Malerkotla_PG, (4) 400kV Patialala_PG, (5) 400kV Moga_PG (6) 400kV Jallandhar_PG

Wide Area : Signal sent from respective stations to shed radial load at nearby 220kV S/s


Line flows of 220 kV Nalagarh-Mohali lines

220kV Barnala-Lehramohabbat lines

Wide Area : Signal sent from 220kV Mohali, 220kV Lehramohabbat to shed radial load at nearby 220kV S/s

7

5 Flows crossing TTC and ∆ P > 100 MW

Shed load in the feeders identified at S no 1 Group A, B, C,D,E,F &G in rotation

Automatic

Local area: Wide Area:

NO

RTH

ERN

REG

ION

-PU

NJA

B

No. of measurements aggregated at NRLDC SCADA

Signal sent from NRLDC to the 34 x 220 kV substations identified at S no 1 above.

6**

Sudden loss of generation > 1000 MW or loss of high capacity corridor

Loss of Generation / High capacity corridor Refer Annex-I.E

Automatic Local area:(1)Measurement at Ropar TPS**

Wide Area: Shed loads identified at Sl. No.1

**Proposed SPS : 1) SPS for reliable evacuation of Ropar TPS generation

7

Angular difference exceeding cut off value

Shed load in Group A, B, C,D,E,F &G by rotation

Automatic Wide Area Synchrophasor measurements at RLDC/SLDC

Wide Area: Signal sent to 34 x 220 kV substations

Angle pairs to be decided. True Wide Area Protection

8

UFR 1: 49.0 Hz

Punjab peak load: 8439 MW. UFR to cover at least 60% or 5063 MW. Identify 37 x (220 kV substations & 66kV Substations)

Automatic Local Area Local area: [Refer Annex XI]

49.0 Hz: 5 substations: 800 MW

UFR 2: 48.8 Hz


UFR 3: 48.6 Hz


UFR 4: 48.4 Hz

48.4 Hz : 12 substations: 1750 MW

30 UFRs required with df/dt feature to take care of S no 9 also.

9 Df/dt: 49.9 Hz plus 0.1, 0.2 Hz/sec

Designated feeder in each control area

Automatic Local area Local area Part loads in S no 8 could be covered through df/dt relays also. Say UFR4 could be covered through df/dt also.


Power stations, loads Refer Annex-I.F

Automatic Local area Local area

Islands :

(1)Ropar TPS with load at 220kV Gobindgarh-1

(2)Lehra Mohabbat TPS with load at 220kV Himatpura

(3)Bhatinda TPS (GNDTPS) with load at 220kV Mukatsar

** Separate sheet for lines not associated with any state but trunk line. 1) Telemetery of all feeders a must. 2) Reset command from control centre for restoration 3) Ability to select any combination of sub-stations at LDC PLC 4) Detailed logic at PLC level; audit trail for change in logic by authorised users (5) Master server or PLCs for archiving, logs etc. (6) For UFR, UVLS station EL should be provided.

Note: Load node(at 220kV) in a group has been taken of nearby area/or of a particular area. It is suggested that load nodes may be taken from different location in a group to reduce the impact of load shed in a single/particular area.

8

Annex 1.2-Automated defence plan summary for secure operation of grids…….Haryana System

S No

Logic Control Action Manual or Automatic

Measurements as input for control

action (Local / Wide Area)


Remarks

1


Shed load in Haryana in identified five groups A, B, C,D,& E each group constituting 150 MW or 12% of

schedule.Rotation logic and sequence to be programmed at SLDC and RLDC PLCs



Wide Area: signal sent from LDC to (14 x 220 kV sub-stations in 5 groups, each group would have 3 x 220 kV sub-stations and 3 x 132/66 kV feeders would be identified at each substn.(Feeder list is enclosed in Annex-II.A)

Group A: Abdullapur, Shahbad,Tepla ,Pehowa, Kaul all 220 kV sub-stations Group B: Gurgaon Sec-72, Gurgaon Sec-52 all 220 kV sub-stations Group C: Kaithal,Cheeka,Durala,Narwana all 220 kV sub-stations Group D: NunaMajra, Rohtak,Sampla, all 220 kV sub-stations Group E: Hisar IA, Hisar BBMB, Kirori all 220 kV sub-stations

NO

RTH

ERN

REG

ION

-HA

RY

AN

A

2


Send signal to designated power stations A, B, C,D,& E . Rotation logic and sequence to be programmed at SLDC and NRLDC PLC



Wide Area: signal sent from LDCs to selected

power stations Annex-II.B

Power station A: Khedar Power station B: DCRTP Power Station C: Panipat New Power Station D: Faridabad Gas Power Station E: MGSTPS The power stations can either wire the same for unit tripping or generation reduction through secondary control.

3


Shed load at the 14 x 220 kV sub-stations identified in S no 1 above.

Stage 1: Alarm (208 kV)

Local area:

Local area: Annex-II.C




Sixteen UVLS relays required one each at the sixteen 220 kV sub-stations identified at S no. 1 above.


9

S No





Remarks

4**


Shed load in designated areas Refer Annex II.D


ICT’s flow at 400kV Abdullapur 400kV Sonepat 400kV Hissar 400kV Khedar 400kV Kaithal 400kV Fatehabad 400kV Bahadurgarh 400kV Kirori 400kV Daulatabad 400kV Panchkulla


NO

RTH

ERN

REG

ION

-HA

RY

AN

A


Shed load in designated areas Refer Annex II.D


Line flows of 220 kV Samaypur-Ballabhgarh lines 220 kV Ballabhgah – Charkhi Dadri, 220 kV Samaypur – Charkhi Dadri, 220 kV Hissar (BBMB)- Hissar IA D/C lines

Wide Area : Signal sent from 220kV Samaypur, 220kV Charkhi dadri & 220kV Hissar_IA to shed 220kV radial load


Shed load in the feeders identified at S no 1 Group A to Group E in rotation

Automatic

Local area: No. of measurements aggregated at NRLDC SCADA

Wide Area: Signal sent from NRLDC to the 14x 220 kV substations identified at S no 1 above.

6**


Loss of Generation / High capacity corridor Refer Annex II.E

Automatic Local area: (1)Measurement at Khedar TPS


Existing SPS: 1) SPS for tripping of HVDC Mundra-Mahendergarh Proposed SPS : 1) SPS for reliable evacuation of Panipat TPS stage I & II generation

10

S No





Remarks

7


Shed load in Group A or B or C by rotation

Automatic

Wide Area Synchrophasor measurements at RLDC/SLDC



NO

RTH

ERN

REG

ION

-HA

RY

AN

A

8

UFR 1: 49.0 Hz

Haryana peak load: 6416 MW. UFR to cover at least 60% or 3850 MW. Identify 35 x 220 kV substations.

Automatic

Local Area

Local area: [Refer Annex XI]


UFR 2: 48.8 Hz 48.8 Hz: 10 substations: 1000 MW UFR 3: 48.6

Hz 48.6 Hz: 10 substations: 1000 MW

UFR 4: 48.4 Hz





Automatic Local area Local area Part loads in S no 8 could be covered through df/dt relays also. Say UFR4 could be covered through df/dt also


Power stations, loads Refer Annex II.F

Automatic

Local area

Local area

Islands :

(1)Panipat TPS with load at 220kV Saifidon

(2)Khedar TPS with load at 220kV Kirori

(3)Yamuna nagar TPS with load at 220kV Jorian

(4) Mahatma Gandhi TPS with load at 220kV Kabulpur

(5)Jhajjar TPS with load at 400/220kV daulatabad

(6)Faridabad GPS with load at 220kV Samaypur

(6)Faridabad GPS with load at 220kV Samaypur



11

Annex 1.3-Automated defence plan summary for secure operation of grids…….Rajasthan System

S No




Control Action (Local / Wide

Area) Remarks

1


Shed load in Rajasthan in identified six groups A, B, C,D, E ,F & G each group constituting 150 MW or 12% of




Wide Area: signal sent from LDC to (31 x 220 kV sub-stations in 6 groups, each group would have ~4-5 x 220 kV sub-stations and 3 x 132/66 kV feeders would be identified at each substn.(Feeder list is enclosed in Annex-III.A)

GroupA:Bharatpur,Dholpur,Mandawar,SawaiMadhopur all 220 kV sub-stations Group B: Jaipur,Phulera,Chomu,Reengus, Khetri,Chirawa all 220 kV sub-stations Group C: Bhiwadi,Kotputli,Alwar,Bassi,Kukas all 220 kV sub-stations Group D: Sikar,Dhod,Ratangarh,Jhunjhunu,SriDoongarpur all 220 kV sub-stations Group E: Merta,Kheenvsar, Bhoplagarh all 220 kV sub-stations Group F: Kankroli,Sirohi,Bhinmal,Pindwara,Sanchore,Jalore all 220 kV sub-stations Group G: Jhalawar, Modak all 220 kV sub-stations

NO

RTH

ERN

REG

ION

-RA

JASTH

AN

2


Send signal to designated power stations A, B, C,D, E ,F & G. Rotation logic and sequence to be programmed at SLDC and NRLDC PLC



Wide Area: signal sent from LDCs to selected power stations Refer Annex III.B

Power station A: Suratgarh TPS Power station B: KTPS Power Station C: Chhabra Power Station D: Giral TPS Power Station E: Rajwest Power Station F: Dholpur CCGT Power Station G: Barsinghsar The power stations can either wire the same for unit tripping or generation reduction through secondary control.

3


Shed load at the 31 x 220 kV sub-stations identified in S no 1 above. Refer Annex III.C


Local area:

Local area:




31 UVLS relays required one each at the thirty one 220 kV sub-stations identified at S no. 1 above.


4**


Shed load in designated areas


ICT’s flow at 400kV Bassi_PG** 400kV Bhiwadi_PG** 400kV Kankroli_PG, 400kV Bhinmal_PG, 400kV Jodhpur_PG


**SPS approved and under implementation for Contingency due to tripping of Transformers operating in Parallel at Bassi_PG & Bhiwadi

12

S No





Area) Remarks

Shed load in designated areas Refer Annex III.D


Line flows of 220kV Bhiwadi-Kushkhera line-1&2, 220kV Sikandra-Bharatpur line, 400kV Bassi-Heerapura line - 1 & 2

Wide Area : Signal sent from Bhiwadi_PG, Bharatpur & Bassi_PG to shed radial load at nearby 220kV S/s

NO

RTH

ERN

REG

ION

-RA

JASTH

AN

5

Flows crossing TTC and ∆ P > 100 MW

Shed load in the feeders identified at S no 1 Group A, B, C,D, E ,F & G. in rotation

Automatic


Wide Area: Signal sent from NRLDC to the 31 x 220 kV substations identified at S no 1 above.

6**


Loss of Generation / High capacity corridor Refer Annex III.E

Automatic Local area: (1)Measurement at Suratgarh SPTS


7


Shed load in Group A or B or C by rotation

Automatic




8

UFR 1: 49.0 Hz

Rajasthan peak load: 6332 MW. UFR to cover at least 60% or 3799 MW. Identify 35 x 220 kV substations.



UFR 2: 48.8 Hz


UFR 3: 48.6 Hz


UFR 4: 48.4 Hz



13

S No





Area) Remarks




NO

RTH

ERN

REG

ION

-RA

JASTH

AN


Power stations, loads Refer Annex III.F


Islands :

(1)Kota TPS with load at 220kV Kota

(2)Suratgarh TPS with load at 220kV Suratgarh Old,

(3) Chabra TPS with load at 220kV Jhalawar

(4) Dholpur TPS with load at 220kV Basere

(5)Barsingsar with load at 220kV Bikaner

(6)Rajwest TPS with load at 220kV Barmer

(7) Giral TPS with load at 220kV Akal

(8)VSLP with load at 220kV Bikaner

(8) Anta GPS with load at 220kV Sawaimadhopur/ Dausa



14

Annex 1.4-Automated defence plan summary for secure operation of grids…….Delhi System

S No


Measurements as input for control action (Local / Wide Area)

Control Action (Local / Wide Area) Remarks

1


Shed load in Delhi in identified three groups A, B, C & D each group constituting 150 MW or 12% of




Wide Area: signal sent from LDC to 20 x 220 kV sub-stationsin 3 groups, each group would have 5 x 220 kV sub-stations and 3 x 66 kV feeders would be identified at each substn.(Feeder list is enclosed in Annex-IV.A)

Group A: Narela, Shalimar Bagh, Rohini, South of Wazirabad, Kashmere Gate all 220 kV sub-stations Group B: Gopalpur, Geeta Colony, Patparganj, Rajghat, Pragati all 220 kV sub-stations Group C: Mehrauli, Najafgarh, Vasant Kunj, Dwarka-1, Dwarka-2 all 220 kV sub-stations GroupD:Okhla,SaritaVihar,MasjidMoth,Parkstreet,LodhiRoad all 220kV sub-stations

NO

RTH

ERN

REG

ION

-DELH

I

2


Send signal to designated power stations A, B and C. Rotation logic and sequence to be programmed at SLDC and NRLDC PLC



Wide Area: signal sent from LDCs to selected power stations Annex-IV.B

Power station A: BTPS Power station B: Pragati Power Station C: Bawana Gas The power stations can either wire the same for unit tripping or generation reduction through secondary control.

3




Local area:

Local area Annex-IV.C:




Fifteen UVLS relays required one each at the twnty 220 kV sub-stations identified at S no. 1 above.


4**




Local area: 220 kV Ballabgarh-BTPS flow exceeding 150 MW each circuit towards BTPS

Wide Area : Signal sent from BTPS to 220 kV Mehrauli and Okhla substations Annex-IV.D

Identify 5 x 66 kV feeders each at Mehrauli and Okhla substations. Note: Delhi already has SPS for overloading of Mandaula, Bawana and Bamnauli 400/220 kV ICTs.

5


Shed load in the feeders identified at S no 1 Group A, B, C & D in rotation

Automatic



15

S No




6**


Loss of high capacity corridors

Automatic

Local area: measurement at Mandaula (PG) sub-station 1) Change of 1000 MW on Dadri-Mandaula D/C or Mandaula-Bawana D/C

Wide Area: In case of Dadri-Mandaula D/C trip Group A or B. In case of Mandaula-Bawana D/C trip Group C. Annex-IV.E

SPS for Contingency due to tripping of Transformers operating in Parallel 1) Existing SPS : Bamnauli, Ballbgarh 2) Proposed : Mahranibagh, Bawana

NO

RTH

ERN

REG

ION

-DELH

I

7


Shed load in Group A or B or C or D by rotation

Automatic


Wide Area: Signal sent to 20x 220 kV substations


8

UFR I: 49.0 Hz

Delhi peak load: 5500 MW. UFR to cover at least 60% or 3300 MW. Identify 30 x 220 kV substations.

Automatic Local Area Local area: Refer Annex XI

49.0 Hz: 6 substations: 500 MW 48.4 Hz: 1000 MW

UFR 2: 48.8 Hz


UFR3: 48.6 Hz


UFR4: 48.4 Hz






Power stations, loads

Automatic Local area Local area Annex-IV.F

Pragati, Bawana, BTPS islands. (15 UFRs required say)



16

Annex 1.5-Automated defence plan summary for secure operation of grids…….UttarPradesh System

S No




Remarks

1


Shed load in UttarPradesh in identified ten groups A, B, C,D,E,F,G,H,I&J each group constituting 150 MW or 12% of




Wide Area: signal sent from LDC to (~35 x 220 kV sub-stations in 10 groups, each group would have ~3-4 x 220 kV sub-stations and ~3-4 x 132/66 kV feeders would be identified at each substn. (Feeder enclosed in Annex-V.A)

Group A: GreaterNoida, Noida sec-20, Noida sec-129 all 220 kV sub-stations Group B: Agra (Sikandra), Firozabad all 220 kV sub-stations Group C: Gokul,Hathras, Aligarh (132kV) Group D: Baraut,Khurja, Jahangirabad all 220 kV sub-stations Group E: Moradabad, Nehtaur, Sambhal, CBGanj all 220 kV sub-stations Group F: Nanauta, Shamli,Sharanpur all 220 kV sub-stations Group G: Nara,Gajraula, Simbholi,Shatabdinagar all 220 kV sub-stations Group H: Panki, ChibroMau,Mainpuri all 220 kV sub-stations Group I: Paricha,Orai,Safai,Etah, all 220 kV sub-stations Group J: Fatehpur,Banda, RewaRoad, all 220 kV sub-stations

NO

RTH

ERN

REG

ION

-UTTA

RP

RA

DESH

2


Send signal to designated power stations A, B, C,D,E,F,G,H,I&J. Rotation logic and sequence to be programmed at SLDC and NRLDC PLC



Wide Area: signal sent from LDCs to selected power stations Annex-V.B

Power station A: AnparaA&B Power station B: Tanda Power Station C: AnparaC Power Station D: Obra Power Station E: Rosa-1 Power Station F: Paricha Power Station G: Rosa-2 Power Station H: VishnuPrayag The power stations can either wire the same for unit tripping or generation reduction through secondary control.

3




Local area:

Local area: Annex-V.C




35 UVLS relays required one each at the thirty five 220 kV sub-stations identified at S no. 1 above.


17

S No




Remarks

4**




ICT’s flow at 400kV Greater Noida_UP 400kV Muzaffarnagar_UP 400kV Allahabad_PG 400kV Meerut_PG 400kV Kanpur_PG 400kV Mainpuri_PG 400kV Moradabad_UP** 400kV Muradnagar_UP ** 400kV Agra_UP ** 400kV Bareilley_UP** 400kV Mandola**

Wide Area : Signal sent from respective stations to shed radial load at nearby 220kV S/s [Annex-V.D]

** SPS proposal approved and under implementation for contingency due to tripping of Transformers operating in Parallel at Moradabad_UP, Muradnagar_UP, Agra_UP, Mandola_PG and Bareilley_UP N

OR

THER

N R

EGIO

N-U

TTAR

PR

AD

ESH



Measurement of 220kV line flow of : 220kV Lucknow-Chinhat line, 220kV Mainpuri(PG)-Ferozabad line 220kV Mainpuri-Harduaganj line

Wide Area : Signal sent from respective stations to shed radial load at nearby 220kV S/s [Annex-V.D]

5


Shed load in the feeders identified at S no 1 Group A, B, C,D,E,F,G,H,I&J in rotation

Automatic



6**


Loss of high capacity corridors/ loss of generation

Automatic

Local area: (1) Measurement at Panki_UP : flow on 400kV Unnao-Panki line

Wide Area: Signal sent from respective stations to load groups identified at Sl. No. 1 [Annex-V.E]

SPS already in service (1) SPS for Agra-Gwalior lines (2) SPS for HVDC Rihand-Dadri (3) SPS for HVDC Balia-Bhiwadi (4) SPS for Gorakhpur-Muzaffarpur lines SPS approved and under implementation (1) SPS for reliable evacuation of Parichha TPS (2) SPS for reliable evacuation of Roza TPS (3) SPS for contingency due to tripping of multiple lines from 400 kV Dadri

18

S No




Remarks

7


Shed load in Group A, B, C,D,E,F,G,H,I&J by rotation

Automatic




NO

RTH

ERN

REG

ION

-UTTA

RP

RA

DESH

8

UFR 1: 49.0 Hz

Uttar Pradesh peak load: 9706 MW. UFR to cover at least 60% or 5824 MW. Identify 34 x 220 kV substations.



UFR 2: 48.8 Hz


UFR 3: 48.6 Hz

48.6 Hz: 10 substations: 1500 MW [Refer Annex C]

UFR 4: 48.4 Hz







Power stations, loads Automatic Local area Local area Annex-V.F

Islands :

(1) Obra TPS with load at 220kV Rewa road,

(2) Panki TPS with load at 220kV Panki ,

(3) Parichha TPS with load at 132kV Jhansi

(4) Tanda TPS with load at 220kV Bast/ 220kV Gorakhpur

(5) Harduaganj TPS with load at 220kV Etah/ Atrauli

(6) Roza TPS with load ata 220kV Shahjahanpur/ Badaun


Note: Load node (at 220kV) in a group has been taken of nearby area/or of a particular area. It is suggested that load nodes may be taken from different location in a group to reduce the impact of load shed in a single/particular area.

19

Annex 1.6-Automated defence plan summary for secure operation of grids…….Uttarakhand System

S No





Remarks

1


Shed load in Uttarakhand in identified two groups A &B each group constituting 100 MW or 12% of




Wide Area: signal sent from LDC to (4x 220 kV sub-stations in 2 groups, each group would have ~4 x 220 kV sub-stations and ~3-4 x 132/66 kV feeders would be identified at each substn.(Feeder enclosed in Annexure-VI.A)

Group A: PanthNagar, Ranikhet all 220 kV sub-stations Group B: Roorkee, Rishikesh all 220 kV sub-stations

NO

RTH

ERN

REG

ION

-UTTA

RA

KH

AN

D

2


Send signal to designated power stations A and B . Rotation logic and sequence to be programmed at SLDC and NRLDC PLC



Wide Area: signal sent from LDCs to selected power stations Annexure-VI.B

Power station A: Power station B: Power Station C: The power stations can either wire the same for unit tripping or generation reduction through secondary control.

3


Shed load at the 4x 220 kV sub-stations identified in S no 1 above.


Local area:

Local area: Annexure-VI.C



Bus voltage Measurement at the 4x 220 kVsubstations

4 UVLS relays required one each at the four 220 kV sub-stations identified at S no. 1 above.


4**




ICT’s flow at 400kV Rishikesh_PG 400kV Roorkee_PG 400kV Kashipur

Wide Area : Signal sent from respective stations to shed radial load at nearby 220 kV S/s

(Annexure-VI.D)



Line flows of 400kV Moradabad-Kashipur line

Wide Area : ** SPS for contingency due to tripping of 400 kV Moradabad-Kashipur line approved and under implementation

20

S No





Remarks

5


Shed load in the feeders identified at S no 1 Group A & B in rotation

Automatic



NO

RTH

ERN

REG

ION

-UTTA

RA

KH

AN

D

6**


Loss of Generation / High capacity corridor

Automatic Local area: Wide Area: Annexure-VI.E

7


Shed load in Group A or B by rotation

Automatic




8

UFR 1: 49.0 Hz

Uttarakhand peak load: 1532 MW. UFR to cover at least 60% or 919 MW. Identify 20 x (132 kV substations & 66kV Substations)



UFR 2: 48.8 Hz


UFR 3: 48.6 Hz

48.6 Hz: 5 substations: 250 MW [Refer Annex C]

UFR 4: 48.4 Hz







Power stations, loads

Automatic Local area Local area Islands : Annexure-VI.F



21

Annex 1.7-Automated defence plan summary for secure operation of grids…….Jammu & Kashmir System

S No

- Control Action Manual or Automatic



Remarks

1


Shed load in Jammu&Kashmir in identified two groups A &B each group constituting 100 MW or 12% of




Wide Area: signal sent from LDC to (11x 132 kV sub-stations in 2 groups, each group would have 3 x 220 kV sub-stations and ~2-4 x 132/66 kV feeders would be identified at each substn.(Feeder enclosed in Annexure-VII.A)

Group A: Jammu, Baran, Hiranagar all 220 kV sub-stations Group B: Ziankote,Pampore,Mirbazar all 220 kV sub-stations N

OR

THER

N R

EGIO

N-JA

MM

U &

KA

SHM

IR

2


Send signal to designated power stations A and B. Rotation logic and sequence to be programmed at SLDC and NRLDC PLC



Wide Area: signal sent from LDCs to selected power stations Annexure-VII.B


3



Stage 1: Alarm (208 kV) Local area:

Local area: Annexure-VII.C




Fifteen UVLS relays required one each at the fifteen 220 kV sub-stations identified at S no. 1 above.


4**




ICT’s flow at 400kV Wagoora_PG, 400kV Kishenpur_PG

Wide Area : Signal sent from respective station to at nearby 220kV S/s [Annexure-VII.D]



Line flows of 220 kV Sarna-Hiranagar S/C, 220 kV Salal-Jammu lines D/C

Wide Area : Signal sent from Hiranagar & Jammu to nearby 132kV S/s [Annexure-VII.D]

22

S No

- Control Action Manual or Automatic



Remarks

5


Shed load in the feeders identified at S no 1 Group A, B in rotation

Automatic



NO

RTH

ERN

REG

ION

-JAM

MU

& K

ASH

MIR

6**



Automatic Local area: Wide Area: Annexure-VII.E

SPS proposed : 1) Tripping of 400kV Kishenpur-Wagoora circuits (monitoring at 400 kV Wagoora substation) 2) Tripping of 220 kV Pampore-Mirbazar-Ramban/Kishenpur 3) Load through off, power export from Kashmir valley (Summer scenario)

7



Automatic




8

UFR 1: 49.0 Hz

Jammu & Kashmir peak load: 1619 MW. UFR to cover at least 60% or 971 MW. Identify 20 x (132 kV substations )



UFR 2: 48.8 Hz


UFR 3: 48.6 Hz


UFR 4: 48.4 Hz







Power stations, loads Automatic Local area Local area Annexure-VII.F



23

Annex 1.8-3Automated defence plan summary for secure operation of grids…….Himachal Pradesh System

S No




1


Shed load in HimachalPradesh in identified two groups A &B each group constituting 100 MW or 12% of




Wide Area: signal sent from LDC to (6 x 220 & 2 x 132 kV sub-stations in 2 groups, each group would have 3x 220 & 132 kV sub-stations and 2 x 132/66 kV feeders would be identified at each substn.(Feeder enclosed in Annexure-VIII.A)

Group A: UparNangal,Baddi,Kunihar all 220 kV sub-stations Group B: 220kV Jessore, 132kV Dehra,Kangra sub-stations N

OR

THER

N R

EGIO

N-H

IMA

CH

AL P

RA

DESH

2


Send signal to designated power stations A and B. Rotation logic and sequence to be programmed at SLDC and NRLDC PLC



Wide Area: signal sent from LDCs to selected power stations Annexure-VIII.B

Power station A: Baspa Power station B: Power Station C: The power stations can either wire the same for unit tripping or generation reduction through secondary control.

3


Shed load at the 6 x 220kV & 2 x 132 kV sub-stations identified in S no 1 above.


Local area:

Local area: Annexure-VIII.C




Six UVLS relays required one each at the four 220 kV sub-stations & two 132kV S/s identified at S no. 1 above.


4**




ICT’s flow at 400kV Nalagarh_PG, 400kV Dehar

Wide Area : Signal sent from Nalagarh_PG & Dehar to shed radial load at nearby 220 kV S/s [Annexure-VIII.D)

5


Shed load in the feeders identified at S no 1 Group A, B in rotation

Automatic


Wide Area: Signal sent from NRLDC to the 6 x 220 kV substations identified at Sl. No. 1 above.

24

S No




6**



Automatic Local area: Wide Area: Annexure-VIII.E

NO

RTH

ERN

REG

ION

-HIM

AC

HA

L PR

AD

ESH

7



Automatic




8

UFR 1: 49.0 Hz

Himachal peak load: 1050 MW. UFR to cover at least 60% or 630 MW. Identify 25 x (132 kV substations & 66kV Substations)

Automatic Local Area Local area:[ Refer Annex XI]


UFR 2: 48.8 Hz


UFR 3: 48.6 Hz

48.6 Hz: 5 substations: 150 MW [See Annex-C]

UFR 4: 48.4 Hz







Power stations, loads Automatic Local area Local area Annexure-VIII.F



25

Annex 1.9-Automated defence plan summary for secure operation of grids…….Chandigarh System

S No




Remarks

1


Shed load in Chandigarh in identified a groups A constituting constituting 35 MW or 12% of




Wide Area: signal sent from LDC to (1x 220 kV sub-stations in a group, a group would have 1 x 220 kV sub-stations and 1-2 x 66 kV feeders would be identified at each substn. Annexure-IX.A

Group A: Kishengarh all 220 kV sub-stations

NO

RTH

ERN

REG

ION

-CH

AN

DIG

AR

H

2


Send signal to designated power stations A.Rotation logic and sequence to be programmed at SLDC and NRLDC PLC



Wide Area: signal sent from LDCs to selected power stations Annexure-IX.B


3


Shed load at the 1 x 220kV sub-stations identified in S no 1 above.


Local area:

Local area: Annexure-IX.C




1 UVLS relays required one each at the one 220 kV sub-stations identified at S no. 1 above.


4**


Shed load in designated areas Shed load in designated areas

Annexure-IX.D


Shed load in the feeders identified at S no 1 Group A in rotation

Automatic



26

S No




Remarks

6**



Annexure-IX.E

NO

RTH

ERN

REG

ION

-CH

AN

DIG

AR

H

7


Shed load in Group A by rotation

Automatic Wide Area Wide Area: Angle pairs to be decided. True Wide Area Protection

8

UFR 1: 49.0 Hz

Chadigarh peak load: 254 MW. UFR to cover at least 60% or 152 MW. Identify 20 x (132 kV substations )



UFR 2: 48.8 Hz 48.8 Hz: 5 substations: 35 MW [See AnnexC]

UFR 3: 48.6 Hz 48.6 Hz: 5 substations: 35 MW

UFR 4: 48.4 Hz 48.4 Hz : 7 substations: 60 MW






Power stations, loads Automatic Local area Local area Annexure-IX.F



27

Annex I.A- Punjab -Feeders list for Remote tripping

220kv S/S Feeder MW

Group-A Bahadurgarh 66kV Maghar Sahib, Rodjaghi 19

155 Rajpura 66kV Saraibanjara, Mohikalan 26

Nabha 220KV Power Grid Patiala-Nabha 40

Rajla *Local Load 35

Patran *Local Load 35

Group-B Barnala 66kV Karamgarh, Pakhoke 22

165 Amloh 66kV Agaul, Samaspur 23

Pakhowal 220KV Pakhowal-Mehal Kalan (66KV Mehal Kalan(Kutba), Thikriwala, Thuliwal) 50

Sunam 66kV Lehra, Mangwal, Ubhawal, Longowal, Sunam ckt 1&2, Local Grid 70

Group-C Moga 132 KV Samad Bhai (Bhagta Bhai) 9

145

132KV Moga (220KV) - Badni Kalan 20

Ferozpur 33kV Ghoker Haihar, 33kV Chugate Wala, 33kV Tibbi 36

Baghapurana *Local Load 30

Botiawala 66kV Kamalgarh, Behatgujran, Thatha Sahib, Kasowana, Sabrawan 40

Sadiq 132KV Sadiq-Faridkot 10

Group-D Muktsar 220KV Muktsar-Gubaya(66KV Dhandi Qdeem, Fazlika, Laduka, Bairoke Jhariwala, Jiwan Arian.) 90

203 132KV Muktsar-Jalalabad(66KV Bajeke, Nureke & 11KV Local 18 no.feeders.) 25

132 KV Mukatsar(Malout Road City, Sattanwala, Lubancwali, Lubana) 8

LehraMohabbat 220KV Lehra Mohabbat-Himmatpura ckt.-1&2 80

Group-E Verpal 132KV Verpal (220KV) – Hakima Gate - Skatri Bagh 18

208

Patti 220KV Patti-Algaon (66KV Amarkot, Lakhna, Khem Karan.) 40

132KV Patti(220KV) - Bhikhiwind 45

132kV Tarantaran (Verpal/Patti/Jalandhar) 18

WadalaGranthian 66kV Udhonangal 30

132 KV SRI Hargobindpur 5

132 KV Dhariwal (Batala) 10

132 KV Kathunangal (Batala) 17

Butari 66kV Saidpur, Nagoke, Khadur Sahib, Beas 25

Group-F Nakodar 132 KV Nakodar (Masunpur) 1.2

153.3

*Local load 25

Kartarpur *Local load 25

Goraya 132 KV Nawanshahr (Gharshankar) 1.5

*132kV Phagwara 10

Jallandhar *132kV Jalandhar-ChildernPark/SC/RC factory 20

132 KV Kapurthala (33kV Kalasnghia, 33kV Ucha, 33kV Hothian, 33kV Tiba) 8

132 KV Bhogpur (Begowal,Kala Bakra) 27.6

Jamsher *Local load 20

RehanaJattan *Local load 15

Group-G Laltokalan 66kV Narangwal 15

154.7

FerozpurRoad *Local load 20

Humbran *Local load 15

Jagraon *Local load 20

Ropar 132 KV Ropar (Bur Majra, Kurali, Parsali) 19.2

Kohara 66kV Kohara Chaura, Kohara Bhani Sahib 22

Kharar 132 KV Kharar (Wadali, Majra Mulanpur, Majri, Banur) 22

132kV Doraha 132 KV Doraha (Korsen) 6.5

132KV Doraha-Bilaspur-Sihora 15

* : Proposed feeder NOTE:-More groups would have to be identified to cover upto 5000MW load.

28

Annex I.B- Punjab- List of power stations for generation regulation

Sl.No. Power Station Installed

capacity in MW

1. RSD 600

2. ROPAR 1260

3. LehraMohabbat 920

4. Bhatinda 440

29

Annex I.C- Punjab –Nodes identified for Under Voltage Load Shedding

Sl.No Group 220kV S/S

1 Group-A Bahadurgarh

2 Rajpura

3 Nabha

4 Rajla

5 Patran

6 Group-B Barnala

7 Amloh

8 Pakhowal

9 Sunam

10 Group-C Moga

11 Ferozpur

12 Baghapurana

13 Botiawala

14 Sadiq

15 Group-D Muktsar

16 LehraMohabbat

17 Group-E Verpal

18 Patti

19 WadalaGranthian

20 Butari

21 Group-F Nakodar

23 Kartarpur

24 Goraya

25 Jallandhar

26 Jamsher

27 RehanaJattan

28 Group-G Laltokalan

29 FerozpurRoad

30 Humbran

31 Jagraon

32 Ropar

33 Kohara

34 Kharar

NOTE:-More 220kV Substations would have to be identified.

30

Annex I.D- Punjab – Feeders selected for ICT/ line loading crossing normal operating limits

a) Contingency due to increased loading of Transformers operating in Parallel

Sl No.

Sub-Station No. of ICT * Capacity per ICT

Total Transformation Capacity (MVA)

Load group in which shedding to be done

1 Amritsar_PG 2 * 315 630 Load group-E

2 Ludhiana_PG 3 * 315 945 Load group G

3 Malerkotla_PG 2 * 315 + 1*500 1130 Load group B

4 Patiala_PG 2 * 315 + 1*500 1130 Load group A

5 Moga_PG 3 * 250 + 1 * 315

1065 Load group C

6 Jallandhar_PG 2 * 315 630 Load group F

Load shedding to occur depending on no. of ICTs in operation.

b) Contingency due to increased flow in lines

Sl No. Name of line Contingency Action

1 220kV Nalagarh-Mohali lines

Line carrying more than 150MW Shed load group in A

2 220kV Barnala-

Lehramohabbat line

Line carrying more than 150MW Shed load in group C

31

Annex I.E- Punjab – Feeders selected for loss of generation >1000MW/

High capacity corridor

a) Contingency due to sudden loss of generation > 1000 MW

Sl No.

Plant/ Station No. of Unit * Capacity

per Unit (MW)

Total Effective Capacity

(MW)

Load group in which shedding to be done upon generation loss/ tripping of

line

1 Ropar TPS 6 x210 1260 Group A & F & G

NOTE:-More groups would have to be identified.

Annex I.F- Punjab –Power stations selected for Islanding at 47.9Hz

Sl.NO Islands :

1 (1)Ropar TPS with load at 220kV Gobindgarh-1

2 (2)Lehra Mohabbat TPS with load at 220kV Himatpura

3 (3)Bhatinda TPS (GNDTPS) with load at 220kV Mukatsar

32

Annex II.A.Haryana -Feeders list for Remote tripping

Haryana

220kv S/S Feeder MW

Group-A Abdullapur *Local load 30

150

Shahbad *Local load 30

Tepla *Local load 30

Pehowa *Local load 30

Kaul *Local load 30

Group-B Gurgaon Sec-72 220kV Gurgaon Sector 72 Ckt-1&2 350

505 Daultabad 66kV Gurgaon Sector 23-Daulatabad Ckt-1&2 120

66kV Harsaru-Daulatabad Ckt-1&2 35

Group-C Kurukshetra 132kV Pehowa-Kurukshetra 60

170 33kV Ajrana, 33kV Kimach, 11kv Bhadurpura, 11kV Pipli-1 feeders 60

Jagadhari(Khera) 66kV Sadhora-Khera Ckt-1 25

66kV Sadhora-Khera ckt-2 25

Group-D Panipat (BBMB) 132kV Samalkha, 132kV Karnal, 132kv Israna, 33kV feeders 120

220 132kV Sonepat-Sewah 60

Dhulkote 66kV Dhulkote-Babyal, 66kV Dhulkote-Ambala city ckt-1&2 40

Group-E Hisar IA

215

Hisar BBMB

Kirori 132kV Barwala-Kirori 25

132kV Adampur-Kirori 25

132kV Bhunar-Kirori ckt-1&2 165


33

Annex II.B- Haryana- List of power stations for generation regulation


capacity in MW

1. Power station A: Khedar

1200

2. Power station B: DCRTP 600

3. Power Station C: Panipat New 1367

4. Power Station D: Faridabad Gas 431

5. Power Station E: MGSTPS 1500

34

Annex II.C- Haryana –Nodes identified for Under Voltage Load Shedding


1

Group-A

Abdullapur

2 Shahbad

3 Tepla

4 Pehowa

5 Kaul

6 Group-B

Gurgaon Sec-72

7 Daultabad

8 Group-C

Kurukshetra

9 Jagadhari(Khera)

10 Group-D

Panipat (BBMB)

11 Dhulkote

12

Group-E

Hisar IA

13 Hisar BBMB

14 Kirori


35

Annex II.D- Haryana – Feeders selected for ICT/ line loading crossing normal operating limits


Sl

No.

Sub-Station No. of ICT *

Capacity per ICT

(MVA)

Total

Transformation

Capacity (MVA)

Load group in which shedding to be

done

1 Abdullapur 3 * 315 945 Group A

2 Sonepat 2 * 315 630 Group D

3 Hissar 3 * 315 945 Group E

4 Khedar 2 * 315 + 1*500 1130 Group E

5 Kaithal 2 * 315 630 Group A

6 Fatehabad 2 * 315 630 Group E

7 Bahadugarh 1 * 315 + 1*500 815 Group B

8 Kirori 3*315 945 Group E

9 Daulatabad 3*315 945 Group B

10 Panchkulla 2*315 630 Group A




1 220kV Samaypur-Ballabhgarh

lines

Line carrying more than 150MW Shed load group in B

2 220 kV Samaypur –

CharkhiDadri

Line carrying more than 150MW Shed load in group B

3 220kV Hissar (BBMB)- Hissar

IA D/C lines

Line carrying more than 150MW Shed load in group E

4 220 kV Ballabhgah –

CharkhiDadri

Line carrying more than 150MW Shed load in group B

36

Annex II.E- Haryana – Feeders selected for loss of generation >1000MW/



Sl No.


per Unit (MW)

Total Effective Capacity

(MW)

Load group in which shedding to be doneupon generation loss/ tripping of

line

1 Khedar TPS 2 * 600 1200 Group A & Group E

2. Proposed SPS for reliable evacuation of Panipat TPS stage I & II generation

To be finalized


37

Annex II.F- Haryana –Power stations selected for Islanding at 47.9Hz

Sl.NO Islands :

1 (1)Panipat TPS with load at 220kV Saifidon

2 (2)Khedar TPS with load at 220kV Kirori

3 (3)Yamuna nagar TPS with load at 220kV Jorian

4 (4) Mahatma Gandhi TPS with load at 220kV Kabulpur

5 (5)Jhajjar TPS with load at 400/220kV daulatabad

6 (6)Faridabad GPS with load at 220kV Samaypur

38

Annex III.A- Rajasthan -Feeders list for Remote tripping

220kV S/S Feeder MW

Group-A Bharatpur 132 kV Kaman 12

170

132 kV Kherli 19

132 kV Kumher 8

Dholpur 132 kV Rajakheda 17

132 kV Basedi 16

132 kV Roopwas 6

Mandawar 132 kV Mahuwa 5

132 kV Sikandra 33

132 kV Sikrai 5

SawaiMadhopur 132 kV Uniara 5

132 kV Tonk 20

132 kV Khandar 16

132 kV Badoti 8

Group-B Jaipur *Local load 20

157

Phulera *Local load 15

Chomu 132 kV Kaladera 18

132 kV Ajeetgarh 22

Reengus *Local load 15

Khetri *Local load 20

Chirawa 132 kV Chand Gothi 21

132 kV Surajgarh 17

132 kV Dulana 9

Group-C Bhiwadi *Local load 30

152

Kotputli 132 kV Manoharpur 31

132 kV Paota 20

132 kV Patan 16

Alwar *Local load 20

Kukas *Local load 15

Bassi *Local load 20


39

Annex III.A- Rajasthan -Feeders list for Remote tripping

Group 220kV S/S Feeder MW

Group-D Sikar 132 kV Ranoli 21

195

132 kV Kudan 14

132 kV Piprali 22

Dhod 132 kV DHOD LOCAL 23

132 kV Kachhawa 14

132 kV Losal 20

132 kV Khood 16

Ratangarh

Jhunjhunu

SriDoongarpur 132 kV Sri Doongargarh 23

132 kV Dulchasar 12

132 kV Reri 17

132 kV Upani 13

220kv S/S Feeder MW

Group-E Merta 132 kV Merta Road 25

165

132 kV Roon 26

Kheenvsar 132 kV Hesaba 21

132 kV Narwa 10

132 kV Soyla 20

BhopalGarh 132 kV Local 16

132 kV Bhopalgarh 23

132 kV Baori 24

Group-F Kankroli 132 kV Mokhampura 27

230

132 kV Nathdwara 17

Sirohi 132 kV Reodar 20

132 kV Badgaon 5

132 kV Ramseen 9

Pindwara 132 kV Pindwara 11

132 kV Abu Road 17

Bhinmal 132 kV Bhinmal Local 27

132 kV Bagora 12

132 kV Jeewana 11

132 kV Sankad 11

Jalore 132 kV Bagra 11

132 kV Padru 18

132 kV Mandawala 12

Sanchore 132 kV Galifa 5

132 kV Bhadroona 17

Group-G Jhalawar 132 kV Manoharthana 9

111

132 kV Khanpur 24

132 kV Bakani 13

132 kV Eklara 18

Modak 132 kV Bhawani Mandi 19

132 kV Mandan Town 7

132 kV Mayla 21


40

Annex III.B- Rajasthan - List of power stations for generation regulation


capacity in MW

1. Power station A: Suratgarh TPS

1500

2.

Power station B: Kota TPS

1240

3.

Power Station C: Chhabra

500

4.

Power Station D: Giral TPS

250

5.

Power Station E: Rajwest

135

6. Power Station F: Dholpur CCGT 330

7. Power Station G: Barsinghsar 25

0

41

Annex III.C- Rajasthan –Nodes identified for Under Voltage Load Shedding

Sl. No Group 220kV S/S 1 Group-A

Bharatpur

2 Dholpur 3 Mandawar

4 SawaiMadhopur

5

Group-B

Jaipur

6 Phulera 7 Chomu

8 Reengus 9 Khetri

10 Chirawa 11 GroupC

Bhiwadi

12 Kotputli

13 Alwar 14 Kukas

15 Bassi

16 Group-D

Sikar

17 Dhod 18 Ratangarh

19 Jhunjhunu

20 SriDoongarpur

21 Group-E

Merta 22 Kheenvsar

23 BhopalGarh 24 Group-F

Kankroli

25 Sirohi

26 Pindwara 27 Bhinmal

28 Jalore 29 Sanchore

30 Group-G

Jhalawar

31 Modak NOTE:-More 220kV Substations would have to be identified.

42

Annex III D- Rajasthan – Feeders selected for ICT/ line loading crossing normal operating limits


Sl No.

Sub-Station No. of ICT * Capacity per ICT (MVA)



1 Kankroli_PG 3 * 315 945 Group F

2 Bhinmal_PG 2 * 315 630 Group F

3 Jodhpur_PG 2 * 315 630 Group E



Sl No.

Name of line Contingency Action

1 220kV Bhiwadi-Kushkhera line-1&2 Line carrying more than 150MW Shed load group in C

2 220kV Sikandra-Bharatpur line-&2 Line carrying more than 150MW Shed load in group A

3 400kV Bassi-Heerapura line - 1 & 2 Line carrying more than 500 MW Shed load in group C

43

Annex III.E- Rajasthan – Feeders selected for loss of generation >1000MW/


a) Contingency due to generation los > 1000MW

Sl No.


per Unit (MW) Total Effective Capacity (MW)

Load group in which shedding to be done upon generation loss>1000MW

1 Suratgarh TPS 250 * 6 1500 Group E, Group D, Group C

b) Contingency due to sudden loss of high capacity corridor

Sl

No. Name of line Contingency

Action: Shed load group in

1 400kV BassiHeerapura line-1&2

Tripping of line & antecedent

flow >500MW Group-B, Group-C


44

Annex III.F- Rajasthan –Power stations selected for Islanding at 47.9Hz

Sl.NO Islands 1

(1)Kota TPS with load at 220kV Kota

2 (2)Suratgarh TPS with load at 220kV Suratgarh Old,

3 (3) Chabra TPS with load at 220kV Jhalawar

4 (4) Dholpur TPS with load at 220kV Basere

5 (5)Barsingsar with load at 220kV Bikaner

6 (6)Rajwest TPS with load at 220kV Barmer

7 (7) Giral TPS with load at 220kV Akal

8 (8)VSLP with load at 220kV Bikaner

9 (9) Anta GPS with load at 220kV Sawaimadhopur/ Dausa

45

Annex IV.A.Delhi -Feeders list for Remote tripping

Delhi

220kv S/S Feeder MW Total

Group-A Narela 30

150

Shalimar Bagh 30

Rohini 30

South of wazirabad 30

KashmiriGate 30

Group-B Gopalpur 30

150

GeetaColony 30

Patparganj 30

Rajghat 30

Pragti 30

Group-C Mehrauli 30

150

Najafgarh 30

Vasant Kunj 30

Dwarka-1 30

Dwarka-2 30

Group-D Okhla 30

150

MasjidMoth 30

SaritaVihar 30

Parkstreet 30

LodhiRoad 30

* : Proposed feeder

NOTE:-More groups would have to be identified to cover upto 3300MW load.

46

Annex IV.B- Delhi - List of power stations for generation regulation


capacity in MW

1. Power station A: BTPS

705

2. Power station B: Pragati

330

3. Power Station C: Bawana Gas

677

47

Annex IV.C- Delhi –Nodes identified for Under Voltage Load Shedding


1

Group-A

Narela

2 Shalimar Bagh

3 Rohini

4 South of wazirabad

5 KashmiriGate

6

Group-B

Gopalpur

7 GeetaColony

8 Patparganj

9 Rajghat

10 Pragti

11

Group-C

Mehrauli

12 Najafgarh

13 Vasant Kunj

14 Dwarka-1

15 Dwarka-2

16

Group-D

Okhla

17 MasjidMoth

18 SaritaVihar

19 Parkstreet

20 LodhiRoad


48

Annex IV.D- Delhi – Feeders selected for ICT/ line loading crossing normal operating limits

a) Contingency due to tripping of lines


1 220kV Ballabgarh-BTPS Line carrying more than 150MW

(Flow towards BTPS)

Shed load in Group C

Note:- Delhi already has SPS for overloading of Mandaula, Bawana and Bamnauli 400/220kV ICTs.

Annex IV.E- Feeders selected for loss of generation >1000MW/


a) Contingency due to sudden loss of high capacity corridor

Sl No. Name of line Contingency Action: Shed load in group

1 Dadri-Mandaula D/C Change of more than 100MW flow Group A or B.

2 Mandaula-Bawana D/C Change of more than 100MW flow Group C


Annex IV.F- Delhi –Power stations selected for Islanding at 47.9Hz

Sl.NO Islands

1 Pragati islands.

2 Bawana islands.

3 BTPS islands.

49

Annex V.A- Uttarpradesh -Feeders list for Remote tripping

220kV S/S Feeder MW

Group-A GreaterNoida *Local load 50

150 Noida sec-20 *Local load 50

Noida sec-129 *Local load 50

Group-B Agra 132kV Agra-Etmadpur 40

155

*132kV Agra-Bhimnagari/Fatehbad 15

Firozabad 132kV Firozabad-Shikohabad 50

132kV Firozabad-Pinhat 30

132kV Firozabad-Salempur 20

Group-C Gokul 132kV Gokul-Kosi 40

185

Hathras 132kV Metai(Hathras)-Iglas 20

132kV Metai-Sasni 20

132kV Hathras-Aligarh-III 40

132kV Aligarh 132kV Boner-Sikandarrao 25

132kV Sarsaul-Khair 40

Group-D Dadri

200

Loni

Baraut 132kV Chaprauli 40

132kV Nirpura 60

Khurja 132kV Sikarpur/Debai 50

Jahangirabad 132kV Lakhwati 50

Group-E Moradabad 132kV Moradabad-Bilaspur 40

180

132kV Moradabad-Kanthroad 40

Nehtaur 132kV Nehtaur-Bijnore 50

132kV Nehtaur-Chandrapur 50

Sambhal

CB Ganj

50

Annex V.A- Uttarpradesh -Feeders list for Remote tripping

220kV S/S Feeder MW

Group-F Nanauta

205

Shamli 132kV Jhinjhana 40

132kV Kharad 25

132kV Jassala 20

Saharanpur 132kV Chutmalpur 70

132kV Ambala Road 50

Group-G Nara *local load 10

175

Gajraula *local load 10

Simbholi 132kV Babugarh 25

132kV Syana 60

132kV Hapur 60

ShatabdiNagar *local load 10

Group-H Panki 132kV Panki-Dibiyapur 40

180

132kV Panki-Bilhour 20

ChibroMau 132kV ChibraMau-Fatehgarh-I &II 70

132kV ChibraMau-Kannauj 50

Mainpuri

Group-I Paricha 132kV Paricha-Mauranipur 20

210

132kV Orai-Pukhrayan 30

Orai 132kV Orai-II-Orai(I&II) 70

Safai 132kV Safai-Etwah 50

Etah 132kV Etah-Kasganj 40

Group-J Fatehpur 132kV Fatehpur-Khaga 20

190

Banda 132kV Banda-Mahoba 20

132kV Banda-Karvi 50

132kV Banda-II - Banda I 60

132kV Banda-Rath 40

RewaRoad

* : Proposed feeder


51

Annex V.B- Uttarpradesh - List of power stations for generation regulation


capacity in MW

1. Power station A: AnparaA&B

1630

2. Power station B: Tanda

440

3. Power Station C: Anpara C

600

4 Power Station D: Obra 1442

5 Power Station E: Rosa-1 600

6 Power Station F: Paricha 640

7 Power Station G: Rosa-2 600

8 Power Station H: VishnuPrayag 400

52

Annex V.C- Uttarpradesh –Nodes identified for Under Voltage Load Shedding

Sl.NO Group 220kV S/S

1 Group-A

GreaterNoida

2 Noida sec-20

3 Noida sec-129

4 Group-B

Agra

5 Firozabad

6 Group-C

Gokul

7 Hathras

8 132kV Aligarh

9 Group-D

Dadri

10 Loni

11 Baraut

12 Khurja

13 Jahangirabad

14

Group-E

Moradabad

15 Nehtaur

16 Sambhal

17 CB Ganj

18 220kV S/S

19 Group-F

Nanauta

20 Shamli

21 Saharanpur

22 Group-G

Nara

23 Gajraula

24 Simbholi

25 ShatabdiNagar

26 Group-H

Panki

27 ChibroMau

28 Mainpuri

29 Group-I

Paricha

30 Orai

31 Safai

32 Etah

33 Group-J

Fatehpur

34 Banda

35 RewaRoad


53

Annex V.D- Uttarpradesh – Feeders selected for ICT/ line loading crossing normal operating limits


Sl No.




1 Greater Noida (UPPTCL) 3 * 315 945 Group-A

2 Muzaffarnagar (UPPTCL) 2 * 315 630 Group-F

3 Allahabad (PG) 2 * 315 630 Group-J

4 Meerut (PG) 3 * 315 945 Group-K

5 Kanpur (PG) 2 * 315 630 Group-H

6 Mainpuri_PG 2 * 315 630 Group-I

Load shedding to occur depending on no. of ICTs in operation. Note:- ** SPS proposal approved and under implementation for contingency due to tripping of Transformers

operating in Parallel at Moradabad_UP, Muradnagar_UP, Agra_UP, Mandola_PG and Bareilley_UP.


Sl No.

Name of line Contingency Action

1 220kVLucknow-Chinhat line Line carrying more than 150MW Shed load at 220kV Chihat/Hardoi road

2 220kV Mainpuri-Ferozabad Line Line carrying more than 150MW Shed load in group B

3 220kV Mainpuri(UP)-Harduaganj line Line carrying more than 150MW Shed load in groupI

54

Annex V.E- Uttarpradesh – Feeders selected for loss of generation >1000MW/


a) Contingency due to generation los > 1000MW

Sl No. Plant/ Station Load group in which shedding to be

done upon generation loss>1000MW

1

SPS for reliable evacuation of Parichha TPS (under implementation)

To be finalized

2 SPS for reliable evacuation of Roza TPS(under implementation)

To be finalized

3

SPS for contingency due to tripping of multiple lines from 400 kV Dadri (under implementation)

To be finalized


Sl No.

Name of line Contingency Action : Shed load in

group

1 400kV Unnao-Panki Line

Tripping of line & antecedent

flow >500MW Group H


55

Annex V.F- Uttarpradesh –Power stations selected for Islanding at 47.9Hz

Sl.NO Islands

1 (1)Obra TPS with load at 220kV Rewa road,

2 (2)Panki TPS with load at 220kV Panki ,

3 (3) Parichha TPS with load at 132kV Jhansi

4 (4) Tanda TPS with load at 220kV Bast/ 220kV Gorakhpur

5 (5) Harduaganj TPS with load at 220kV Etah/ Atrauli

6 (6) Roza TPS with load ata 220kV Shahjahanpur/ Badaun

56

Annex VI.A- Uttarakhand -Feeders list for Remote tripping

Uttarakhand

220kV S/S Feeder MW

Group-A Panthnagar 220kV Bareilley-Pantnagar 152 172

Ranikhet 132kV Almorah-Ranikhet 20

Group-B Roorkee 132kV Roorkee-Manglore 30

130 132kV Roorkee-Laksar 40

Rishikesh 132kV Rishikesh-Srinagar 60


Annex VI.B- Uttarakhand - List of power stations for generation regulation


capacity in MW

1. NIL

57

Annex VI.C- Uttarakhand –Nodes identified for Under Voltage Load Shedding

Sl. NO Group 220kV S/S

1 Group-A

Panthnagar

2 Ranikhet

3

Group-B

Roorkee

4 Rishikesh


Annex VI.D- Uttarakhand – Feeders selected for ICT/ line loading crossing normal

operating limits


Sl No.




1 Roorkee_PG 2 * 315 630 Group B

2 Rishikesh_PG 2 * 315 630 Group B

3 Kashipur 2 * 315 630 Shed loads in Kashipur/ Thakurdwara/ Bajpur




1 400 kV Moradabad-Kashipur

line

SPS for tripping of Moradabad-Kashipur line is under

implementation.

58

Annex VI.E- Uttarakhand – Feeders selected for loss of generation >1000MW / High capacity corridor



1 NIL

b) Contingency due to sudden loss of generation >1000MW


1 NIL

Annex VI.F- Uttarakhand –Power stations selected for Islanding at 47.9Hz

Sl.NO Islands :

1 NIL

59

Annex VII.A- Jammu & Kashmir -Feeders list for Remote tripping

Jammu&Kashmir

220kV S/S Feeder MW

Group-A Jammu 132 kV Jammu-Sidhra -1 38

131

132 kV Jammu-Sidhra -2 38

Mirbazar 132 kV Mir Bazar-Tethar 8

132 kV Mir Bazar - Mattan 32

132 kV Mir Bazar - Lissar 15

Group-B Ziankote 132 kV Zainakote- Bemina-1 54

148 132 kV Zainakote- Bemina-2 54

Hiranagar 132 kV Hira Nagar - Kathua-1 20

132 kV Hira Nagar - Kathua- 2 20

Group-C Jammu 132 kV Jammu-Kalakote 60

286 132 kV Jammu- Miran Sahib 50

Ziankote 132 kV Zainakote-Pattan-1 88

132 kV Zainakote- Pattan-1 88

Group-D Baran 132 kV Baran-Canal-1 40

216 132 kV Baran-Canal -2 40

Ziankote 132 kV Zainakote-Waganpora-1 68

132 kV Zainakote- Waganpora 2 68

Group-E Hiranagar 132 kV Hira Nagar - Kathua-1 20

170

132 kV Hira Nagar - Kathua- 2 20

Baran 132 kV Barn-Akhnoor 25

Mirbazar 132 kV Mir Bazar- Wanpoh-1 58

132 kV Mir Bazar- Wanpoh -2 47

* : Proposed feeder


60

Annex VII.B- Jammu & Kashmir - List of power stations for generation regulation


capacity in MW

1. NIL

Annex VII.C- Jammu & Kashmir –Nodes identified for Under Voltage Load

Shedding

Sl. NO

Group 220kV S/S

1 Group-A

Jammu

2 Mirbazar

3 Group-B

Ziankote

4 Hiranagar

5 Group-C

Jammu

6 Ziankote

7 Group-D

Baran

8 Ziankote

9 Group-E

Hiranagar

10 Baran

11 Mirbazar


61

Annex VII.D- Jammu & Kashmir – Feeders selected for ICT/ line loading crossing normal operating limits

c) Contingency due to increased loading of Transformers operating in Parallel

Sl No.




1 Wagoora_PG 4 * 315 1260 Group B

2 Kishenpur_PG 2 * 315 630 Group A


d) Contingency due to increased flow in lines


1 220 kV Sarna-Hiranagar S/C Line carrying more than 150MW Shed load group in A

2 220 kV Salal-Jammu lines D/C Line carrying more than 150MW Shed load in group A

62

Annex VII.E- Jammu & Kashmir – Feeders selected for loss of generation >1000MW / High capacity corridor


Sl No. Name of line Contingency Action: Shed load in

group

1

SPS proposed :

1) Tripping of 400kV Kishenpur-Wagoora circuits

(monitoring at 400 kV Wagoora substation)

2) Tripping of 220 kV Pampore-Mirbazar-

Ramban/Kishenpur

3) Load through off, power export from Kashmir valley

(Summer scenario)



1 NIL


Annex VII.F- Jammu & Kashmir –Power stations selected for Islanding at 47.9Hz

Sl.NO Islands :

1 NIL

63

Annex VIII.A- Himachal Pradesh -Feeders list for Remote tripping

HimachalPradesh

220kv S/S Feeder MW

Group-A UparNanagal 66kV Uprala Nangal-Nalagarh Ckt-1&2 110

132 Baddi *Local load

10

Kunihar 132kV Kunihar-Solan-Parwanoo: 66kV Pinjore-Parwanoo 12

Group-B Dehra 132kV Dehra-Amb ckt-1&2

70

105 Jessore 132kV Kandrori-Jassor

25

Kangra *Local load 10

* : Proposed feeder


Annex VIII.B- Himachal Pradesh List of power stations for generation regulation


capacity in MW

1. Power Station: Baspa

300

64

Annex VIII C- Himachal Pradesh –Nodes identified for Under Voltage Load

Shedding

Sl. NO

Group 220kv S/S

1

Group-A

UparNanagal

2 Baddi

3 Kunihar

4

Group-B

Dehra

5 Jessore

6 Kangra

Annex VIII.D- Himachal Pradesh -Feeders selected for ICT/ line loading crossing normal operating limits


Sl No.




1 Nalagarh_PG 2 * 315 630 Group A

2 Dehar 1 * 250 250 Shed load at 132kV Kangoo


65

Annex VIII.E- Himachal Pradesh – Feeders selected for loss of generation >1000MW / High capacity corridor



group

1 NIL



group

1 NIL

Annex VIII.F- Himachal Pradesh –Power stations selected for Islanding at 47.9Hz

Sl.NO Islands :

1 NIL

66

Annex IX.A- Chandigarh -Feeders list for Remote tripping

Chandigarh

220kv S/S Feeder MW

Group-A Kishengarh 66 kV Kishangarh to Manimajra Feeder 16

44

66 KV Kishangarh to Industrial Area Phase-I 28


Annex IX.B- Chandigarh List of power stations for generation regulation


capacity in MW

1. NIL

Annex IX C- Chandigarh –Nodes identified for Under Voltage Load Shedding

SL.NO Group 220kv S/S

1. Group-A Kishengarh

67

Annex IX.D- Chandigarh – Feeders selected for ICT/ line loading crossing normal operating limits

Contingency due to increased loading of Transformers operating in Parallel

Sl No.




1 NIL

2

a) Contingency due to increased flow in lines


1 NIL

Annex IX.E- Chandigarh – Feeders selected for loss of generation >1000MW / High capacity corridor



group

1 NIL



group

1 NIL

Annex IX.F- Chandigarh –Power stations selected for Islanding at 47.9Hz

Sl.NO Islands :

1 NIL

68

Annex X.A- Regional Level- Feeders selected in case of loss of generation >1000MW / loss of high capacity corridor

1) Regional


Sl No.

Plant/ Station No. of Unit * Capacity per Unit (MW)

Total Effective Capacity (MW)

Load group in which shedding to be done upon generation loss > 1000MW

1 Tehri HEP 4*250 1000 Uttar Pradesh (Group K, Group E)

2 Jhakri HEP 6*250 1500 Punjab(GroupA, Group G), Haryana (Group

A)

3 Karcham HEP 4*250 1000 Punjab(Group A, Group G), Haryana (Group

A)

4 Sigrauli STPS 5*200 + 2*500 2000 U.P (Group J), Haryana (Group B), Delhi

(Group C)

5 Rihand STPS 4*500 2000 U.P (Group J), Haryana (Group B), Delhi

(Group C)


Sl No. Name of line Contingency Action: Shed load group in

1 400kV Koteshwar(PG)-Meerut line-

1&2

Tripping of line & antecedent flow >500MW Uttar Pradesh (GroupK,

Group E)

2 400kV Kanpur-Ballabgarh Line 1, 2 & 3 Tripping of line & antecedent flow > 500MW Haryana (Group B )

3 400kV Nalagarh-Patiala line 1&2 Tripping of line & antecedent flow > 500MW Punjab(Group A, Group G)

5

(1) SPS for Agra-Gwalior lines (2) SPS for HVDC Rihand-Dadri (3) SPS for HVDC Balia-Bhiwadi (4) SPS for Gorakhpur-Muzaffarpur lines (5) SPS for tripping of HVDC Mundra-Mahendergarh

69

Annexure XI- UFR & df/dt setting

Present UFR Scheme

PROPOSED UFR Scheme

STATES Peak MW Met 2011-12

60% of peak load

Load relief in MW

49.0 Hz 48.8 Hz 48.6 Hz 48.4 Hz Total

Punjab 8439 5063 800 1250 1250 1750 5050

Haryana 6416 3850 600 1000 1000 1250 3850

Rajasthan 6332 3799 600 1000 1000 1200 3800

Delhi 5500 3300 500 800 1000 1000 3300

UP 9706 5824 1000 1500 1500 1800 5800

Uttarakhand 1532 919 100 250 250 300 900

J & K 1619 971 100 250 250 360 960

HP 1050 630 100 150 150 230 630

Chandigarh 254 152 20 35 35 60 150

TOTAL 40848 24508 3820 6235 6435 7950 24440

STATES Peak MW Met 2008-09

Load relief in MW

48.8 Hz 48.6 Hz 48.2 Hz Total

Punjab 7309 180 220 400 800

Haryana 4791 110 140 350 600

Rajasthan 6101 120 150 425 695

Delhi 4034 110 140 350 600

UP 8248 190 240 475 905

Uttarakhand 1267 30 30 100 160

J & K 1380 40 50 75 165

HP 1014 20 20 75 115

Chandigarh 279 0 10 0 10

TOTAL 29504 800 1000 2250 4050

70

Annexure XI- UFR & df/dt setting

Present df/dt Scheme

STATES

Load relief in MW

Stage-I, 49.9 Hz, 0.1Hz/Sec

Stage-II, 49.9 Hz, 0.2Hz/Sec

Stage-III, 49.9 Hz,

0.2Hz/Sec Total

Punjab 430 490 490 1410

Haryana 280 310 310 900

Rajasthan 330 370 370 1070

Delhi 250 280 280 810

UP 500 280 280 1060

Uttarakhand 70 70 70 210

J & K 90 90 90 270

HP 50 70 70 190

Chandigarh 0 50 50 100

TOTAL 2000 2010 2010 6020

71

EXHIBIT 2

AUTOMATED DEFENCE PLAN FOR

EASTERN REGION

72

Annexure-2.1- Automated Defence plan summary-Eastern Region- BSEB System

S No

Logic Control Action Manual or Automatic Measurements as input for control action (Local / Wide

Area)


Remarks

EASTER

N R

EGIO

N-B

IHA

R

1 ∆ P > 150 MW ∆ P = Actual-Schd and freq< 50 Hz

Shed load in Bihar. Identify three groups A, B, C each group constituting 80-130 MW or 12% of schedule. Logic and sequence to be programmed at SLDC and RLDC PLCs

Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC after 15 minutes) Stage 3 : Backup (from ERLDC PLC after 20 minutes)


Wide Area: signal sent from LDC to selected 132KV substations for tripping of 132KV feeders to get desired relief

Group A: 132KV Substation Katihar, Saharsa, Supaul, Udaykishangunj, Naugachia, khagaria (80MW) Group B: 132KV Substation Gaya, Tekari, Goh, Belaganj, Masauri(110) Jahanabad, Bodh gaya– Excluding of traction loads (130MW) Group C: 132KV Substation: Vaisali, Sheetalpur, Chapra, Ekma, Siwan (90)

2 ∆ P < -150 MW ∆ P = Actual-Schd and freq> 50 Hz

Send signal to designated power stations A, B Rotation logic and sequence to be programmed at SLDC and ERLDC PLC

Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC 15 minutes) Stage 3 : Backup (from ERLDC PLC in 25 minutes)


Wide Area: signal sent from LDCs to Two power stations

Power station A: Barauni Power station B: Muzzafarpur

3 Voltage <IEGC Band of 95% for 400KV or Voltage < 200KV at 220kV substation for more than 5 minutes

Shed load at node as per details given in Annexure-2.A

Stage 1: Alarm (209/390 kV) Stage 2: Automatic (200/380 kV for more than 5 minutes) Stage 3: 185/370 kV 30 seconds

Local area: Bus voltage Measurement at substations

Local area:

Detail Action plan is given in Annexure-2.A 9UVLS relays required

4 ICT / line loading crossing normal operating limits

Shed load in designated areas Stage-1: Manual (SLDC level) Stage-2; Automatic through PLC

Local area: Measurement at substations

Wide Area : Signal sent from substations to nearby areas

Detail Action plan is given in Annexure-2.B

5 Flows crossing TTCirrespective of frequency

Shed load or reduce generation as detailed in Annexure-2.C

Automatic Local area: No. of measurements aggregated at ERLDC SCADA

Wide Area: Signal sent fromERLDC to the substations/Generating station identified at Annexure-2.C

Detail Action plan is given in Annexure-2.C

6 Sudden loss of generation > 1000 MW or loss of high capacity corridor

Loss of high capacity corridors Automatic Local area: measurement at Power station or substation

Wide Area: Signal send to many areas

Detail Action plan is given in Annexure-2.D

7 Angular difference exceeding cut off value

Shed load at designated areas and generation reduction at selected power station

Automatic Wide AreaSynchrophasor measurements at RLDC/SLDC

Wide Area: Signal sent to many areas


8 UFR I: 49.0 Hz UFR 2: 48.8 Hz UFR3: 48.6 Hz UFR4: 48.4 Hz


Automatic Local Area Local area: 49.0 Hz: 6 substations: 200 MW 48.4 Hz: 300 MW 48.8 Hz: 8 substations: 300 MW 48.6 Hz: 8 substations: 300 MW 50 UFRs and 20 UFR with df/dt feature are required to take care of S no 9 also.Existing feeder wise detail of UFR is in Annexure-2.E



Automatic Local area Local area Part loads in S no 8 could be covered through df/dtrelays also. Say UFR4 could be covered through df/dt also.

10 Islanding at 47.9 Hz Power stations, loads Automatic Local area Local area Detail Action plan is given in Annexure-2.F

73

Annexure-2.2- Automated Defence plan summary -Eastern Region- DVC System

S No

Logic Control Action Manual or Automatic Measurements as input for control action (Local /

Wide Area)


Remarks

EASTER

N R

EGIO

N-D

VC


Shed load in DVC. Identify three groups A,B and C each group constituting 80-130 MW or 12% of

schedule.. Logic and sequence to be programmed at SLDC and RLDC PLCs


Wide Area : Schedules &Drawal from SCADA system at LDCs

Wide Area: signal sent from LDC to selected 132Kv substations for tripping of 132Kv feeders to get desired relief

Group A: 132KV Girdih(100 Mw),Burdwan (90 MW)(excluding loads earmarked for UFLS) Group B: 132KV Jamsedpur (100 MW)Putki/Patherdih/Nimiaghat –total ≈ 100MW(excluding coal feeders) Group C: 220 kV Muchipara (130MW), Parulia(130 MW)






Power station A: Mejia B, DSTPS Power station B: CTPS, Mejia TPS, Bokaro, Waria TPS

3 Voltage <IEGC Band of 95% or Voltage < 200KV at substation for more than 5 minutes

Shed load at node as per details given in annexure-2.A



Local area:

Detail Action plan is given in Annexure-2.A 5UVLS relays required






5 Flows crossing TTC irrespective of frequency
















Automatic Local Area Local area: 49.0 Hz: 6 substations: 200 MW 48.4 Hz: 300MW 48.8 Hz: 8 substations: 300 MW 48.6 Hz: 8 substations: 300 MW 55 UFRs and 20 UFR with df/dt feature are required to take care of S no 9 also. Existing feeder wise detail of UFR is in Annexure-2.E





74

Annexure-2.3- Automated Defence plan summary -Eastern Region- JSEB System

S No


Area)


EASTER

N R

EGIO

N-JSEB


Shed load in Jharkhand. Identify three groups A, B and Ceach group constituting 80-130 MW or 12% of schedule.. Logic and sequence to be programmed at SLDC and RLDC PLCs




Group A: 132KV Adityapur (100 Mw)(excluding traction load and loads earmarked for UFLS) Group B: 132KV Golmuri, Salgajhari, Jadugoda (95 MW Group C: 132KV Hatia (100MW) (excluding loads identified for UFLS)






Power station A: Tenughat Power station B: Patratu

3 Voltage < IEGC Band of 95% or Voltage < 200KV at substation for more than 5 minutes

Shed load at node



Local area:

Detail Action plan is given in Annexure-2.A







Shed load or reduce generation as

detailed in Annexure-2.C














Designated feeder in each control area Automatic Local Area Local area: 49.0 Hz: 6 substations: 80 MW48.4 Hz: 120 MW 48.8 Hz: 8 substations: 120 MW 48.6 Hz: 8 substations: 120 MW 30 UFRs required with df/dt feature to take care of S no 9 also. Existing feeder wise detail of UFR is in Annexure-2.E


Designated feeder in each control area Automatic Local area Local area Part loads in S no 8 could be covered through df/dtrelays also. Say UFR4 could be covered through df/dt also.


75

Annexure-2.4- Automated Defence plan summary -Eastern Region-ODISHA System

S No


Area)


EASTER

N R

EGIO

N-O

DISH

A


Shed load in Orissa. Identify three groups A,B and Ceach group constituting 80-130 MW or 12% of schedule.. Logic and sequence to be programmed at SLDC and RLDC PLCs




Group A: 132KV Jeynagar,Theruvali,Behrampur (110 MW)(excluding loads earmarked for UFLS) Group B: 132 kVNayagrah, Chandaka (local), R. Singpur, Puri, Nimapara(100 MW) Group C: 132 kV Brajrajnagar, Bargarh (120 MW)(excluding loads earmarked for UFLS)






Power station A: IBTPS, TTPS Power station B: Sterlite

3 Voltage <IEGC Band of 95%or Voltage < 200KV at substation for more than 5 minutes


Stage 1: Alarm (209/390 kV) Stage 2: Automatic 200/380 kV for more than 5 minutes) Stage 3: 185/370 kV 30 seconds


Local area:










Wide Area: Signal sent from ERLDC to the substations/Generating station identified at Annexure-2.C












Designated feeder in each control area Automatic Local Area Local area: 49.0 Hz: 6 substations: 300 MW 48.4 Hz: 450 MW 48.8 Hz: 8 substations: 450 MW 48.6 Hz: 8 substations: 450 MW 80 UFRs and 30 UFR withdf/dt feature are required to take care of S no 9 also. Existing feeder wise detail of UFR is in Annexure-2.E


Designated feeder in each control area Automatic Local area Local area Part loads in S no 8 could be covered through df/dtrelays also. Say UFR4 could be covered through df/dt also.


76

Annexure-2.5- Automated Defence plan summary-Eastern Region-SIKKIM System

S No


Wide Area)


Remarks

EASTER

N R

EGIO

N-SIK

KIM


Shed load in Sikkim. Identify in a group constituting 20 MW or 12% of

schedule. Logic and sequence to be programmed at SLDC and RLDC PLCs




Group A: 132KV Substation Gangtok, Melli


N/A Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC 15 minutes) Stage 3 : Backup (from ERLDC PLC in 25 minutes)



Surrender of ISGS (thermal) share by manual action

3 Voltage <IEGC Band of 95% for 400KV or Voltage < 200KV at substation for more than 5 minutes


Stage 1: Alarm (209/390 kV) Stage 2: Automatic 200/380 kV for more than 5 minutes) Stage 3: 185/370 kV 30 seconds


Local area:























Automatic Local Area Local area: 49.0 Hz: 7 MW 48.4 Hz: 10 MW 48.8 Hz: 10 MW 48.6 Hz: 10 MW 3UFRs and 1 UFR with df/dt feature are required to take care of S no 9 also.Existing feeder wise detail of UFR is in Annexure-2.E





77

Annexure-2.6- Automated Defence plan summary-Eastern Region-West Bengal System

S

No


Wide Area)


Remarks

EASTER

N R

EGIO

N-W

EST BEN

GA

L


Shed load in West Bengal. Identify three groups A,B and C each group constituting 80-130 MW or 12% of

schedule..Logic and sequence to be programmed at SLDC and RLDC PLCs




Group A: 132KV Bishnupur (120 MW) (excluding traction load) Group B: 132 kVBehrampur (110 MW) Group C: 132 kV Barasat (130 MW) (excluding traction load)






Power station A: Kolaghat, Sagardighi, Bakreswar Power station B: DPL, Bandel, PPSP(if running in gen mode)

3 Voltage <IEGC Band of 95%or Voltage < 200KV at substation for more than 5 minutes




Local area:


















Automatic Wide AreaSynchrophasor measurements at RLDC / SLDC





Automatic Local Area Local area: 49.0 Hz: 6 substations: 700 MW 48.4 Hz: 1050 MW 48.8 Hz: 8 substations: 1050 MW 48.6 Hz: 8 substations: 1050 MW 180 UFRs and 70 UFRs df/dt feature are required to take care of S no 9 also. Existing feeder wise detail of UFR is in Annexure-2.E





78

Annexure-2.A- Feeders list for Voltage crossing the limits

Voltage < IEGC Band of 95% for 400KV or Voltage < 200KV at 220kV substation for more than 5 minutes

Action

POWERGRID

Muzaffarpur 400 kV Trip Darbhanga 2X100 MVA , 220/132kV ICTs

N. Purnea 400 kV Trip 33kV feeders from Naugachia, Khagaria ,Katiharand Purnea (SLDC to identify)

Biharshariff 400 kV Trip 33kV feeders fromEkangarsarai, Hulasgarh, Lakhisarai, Barh,Hatidah, Jamalpur,Jamui(SLDC to identify)

Sasaram 400 kV Trip 33kV feeders fromDehri, Karmnasa, Bikramgunj(SLDC to identify)

Arrah 220KV Trip 33kV feeders fromDigha, Bakshar, Arrah(SLDC to identify)

Gaya 400 kV Trip 33kV feedersfrom Gaya (SLDC to identify)

Patna 400 kV Trip 33kV feedersfromBihta, Digha, Gaighat and Mithapur(SLDC to identify)

Durgapur 400 kV Trip 33kV feedersfromBardhaman and Kalipahari,Mankar and Ukhra, Bidhannagar(SLDC to identify)

Maithon 400 kV Trip 33kV feedersfromMaithon and 220kV Burnpurand also from Kalyaneswari S/Stn

Rourkella 400 kV Trip 33kV feedersfromRourkella(O), Tarkera ,Barkot ,Chandiposh(SLDC to identify)

Jamshedpur 400 kV Trip 33kV feedersfromAdityapur and Golmuri (Chandil)(SLDC to identify))

Rengali 400 kV Trip load from Barkot(SLDC to identify)

Jeypore 400 kV Trip 33kV feedersfromSunabeda, Damonjodi and T. Khunti (SLDC to identify)

Baripada 400 kV Trip 33kV feedersfrom Baripada(OPTCL) and Rairangpur (SLDC to identify)

Subhasgram400 kV Trip 220kV CLC and 33kV feedersfrom L’Kantapur

Binaguri 400 kV Trip 132kV Siliguri, 2 miles, Moinaguri, Chalsa (SLDC to identify)

Malda 220kV Trip 33kV feedersfromBalurghat and Raiganj (SLDC to identify)

Siliguri 220kV Trip33kV feedersfromLebong, Rammam and TCF (SLDC to identify)

Dalkohla 220KV Trip 33kV feedersfrom Dalkohla(SLDC to identify)

Birpara 220kV Trip 33kV feedersfromAlipurduar (SLDC to identify)

BSEB

Khagaul 220KV Trip 33kV feedersfrom Bihta, Khagaul(SLDC to identify)

Bodhgaya 220KV Trip 33kV feedersfrom Gaya ,Rafigunj, Nawadah(SLDC to identify)

Dehri 220kV Trip 33kV feeders from Bikramganj, Sasaram, Dumraon (SLDC to identify)

Begusarai220kV Trip 33kV feeders from Begusarai, Dalsingsarai (SLDC to identify)

Gopalganj220kV Trip 33kV feeders from Gopalganj, Ekma, Siwan

Darbhanga220kV Trip 33kV feeders from Darbhanga, Phulparas, Madhubani (SLDC to identify)

79

Annexure-2.A- Feeders list for Voltage crossing the limits Voltage < IEGC Band of 95% for 400KV or Voltage < 200KV at 220kV substation for more than 5 minutes

Action

DVC

Kalyaneshwari 220KV Trip 33kV feedersfrom Burnpur, Kalyaneshwari(SLDC to identify)

Barjora 220KV Trip 33kV feedersfrom Barjora(SLDC to identify)

Dhanbad220kV Trip 33kV feeders from Dhanbad (SLDC to identify)

Jamshedpur220kV Trip 33kV feeders from Jamshedpur (SLDC to identify)

JSEB

Hatia 220KV Trip 33kV feedersfromKamdara, Hatia, Gumla(SLDC to identify)

Chandil 220kV Trip 33kV feedersfrom Chandil,Golmuri,Jadugoda

OPTCL

Tarkera 220Kv Trip 33kV feedersfromTarkera, Raigangpur(SLDC to identify)

Bolangir 220KV Trip 33kV feedersfrom Bolangir, Patnagarah(SLDC to identify)

Meramundali 400 kV Trip 132 or 33kV feedersfrom Meeramandali and Bhanjnagar(SLDC to identify)

Chandaka 220KV Trip 33kV feedersfrom Chandaka, Kesura, Nimipara(SLDC to identify)

Mendhasal 400 kV Trip 33kV feedersfrom Khurda and Nimapara / R.S. Pur(SLDC to identify)

Bhadrak 220KV Trip 33kV feedersfrom Soro, Dhamra(SLDC to identify)

Balasore 220KV Balasore, Jaleswar

WBSETCL

Jeerat 400 kV Trip 33kV feedersfromAshoknagar and Barasat(SLDC to identify)

Arambagh 400 kV Trip 33kV feedersfromRainaMidnapur, Jhargram and Birsingha(SLDC to identify)

Satgachia 220KV Trip 33kV feedersfrom Mahachanda, Katwa(SLDC to identify)

Bishnupur 220KV Trip 33kV feedersfromBishnupur, Bakura(SLDC to identify)

Gokarna 220kV Trip 33kV feeders from Gokarna, Rampurhat, Lalgola, Beharampur (SLDC to identify)

Satgachia 200kV Trip 33kV feeders from Satgachia, Dhatrigram, Mankar, Khanyan (SLDC to identify)

Krishnanagar 220kV Trip 33kV feeders from Krishnanagar, Debogram (SLDC to identify)

Kasba 220kV Trip 33kV feeders from Kasba, Sonarpur and Salt Lake (SLDC to identify)

L.Kantapur 220kV Trip 33kV feeders from L. Kantapur (SLDC to identify)

Howrah 220kV Trip 33kV feeders from Howrah, Liluah and Dankuni (SLDC to identify)

Midnapore 220kV Trip 33kV feeders from Midnapore, Chandrakona and Jhargram (SLDC to identify)

N. Haldia 220kV Trip 33kV feeders from N Haldia, Haldia and Contai (SLDC to identify)

Asansol 220kV Trip 33kV feeders from Asansol (SLDC to identify)

Bidhannagar 220kV Trip 33kV feeders from Bidhannagar, Bolpur and Ukhra (SLDC to identify)

Note : Quantum of load to be shed and their location to be identified by concerned RPC/RLDC/SLDC

80

Annexure-2.B- - Action plan for ICT / line loading crossing normal operating limits

Line Action

400kV Farakka-Malda D/C

1 O/D only by NR – SPS to shed load in NR 2 O/D only by NER – SPS to shed load in NER 3 O/D by NR & NER – Both SPS to operate 4.Restriction of Generation(upto 200 MW depending upon the line loading above SIL) at Farkka through SPS 5 Restriction of over injection from WR. 6 Restriction under drawl from ER constituents through SPS. 7 Generation reduction(upto 200 MW depending upon the line loading above SIL) through SPS at Sagardigi, Bakreshwar

400kV Rourkella-Talcher D/C

1 SPS to shed load in Odishaat Meramandali\ Mendhasal/ Bhanjnahgar areas, if it is O/D.

2 SPS to shed load in W. Bengal at Kharagpur/ Bishnupur/ Arambag/ Jeerat if it is O/D 3 If Both Orissa and West Bengal is overdrawing SPS to operate to shed load in both the control areas

400kV Kahalgaon-Biharshariff Q/C

1 SPS to shed load in NR in case of O/D by NR 2 SPS to shed load around Biharshariff (132KV Substation Gaya, Jahanabad, Bodhgaya) in case of O/D by BSEB 3 Restriction of Generation(upto 200 MW depending upon the line loading above SIL) at Khalgaon through SPS 4 O/D by NR as well as BSEB – Both SPS to operate

400kV Maithon – Kahalgaon D/C

1 SPS to shed load in NR in case of O/D by NR 2 SPS to shed load around Biharshariff(132KV Substation Gaya, Jahanabad, Bodh gaya) in case of O/D by BSEB 3 Generation reduction (upto 150 MW depending upon the line loading above SIL) through SPS at Mejia’B’, DSTPS of DVC. 4 Generation reduction (upto 150 MW depending upon the line loading above SIL) through SPS at IPP vis SEL and MPL

400kV SEL – Rourkella D/C

1 SPS to reduce generation in Chattisgarh area / Korba in WR in case of U/D by WR 2 SPS to reduce generation(upto the order of over injection) of SEL in case of O/I by SEL 3 U/D by WR and O/I by SEL – Both SPS to operate

220kV Budhipadar-Tarkera D/C

SPS to shed generation in Chattisgarh area of WR, Vedanata(VAL), IB TPS, 220 kV SEL(upto the order of 100 MW) at 220Kv

Note : Quantum of load / generation to be shed and their location to be identified by concerned RPC/RLDC/SLDCs

81

Annexure-2.C-Action plan for TTC violation

TTC

violation Cause Action

1 ER-NR Over loading of 1. 400KV Farkka-

Malda 2. 400KV

Kahalgaon-Biharshariff

1 O/D only by NR – SPS to shed load in NR 2 O/D only by NER – SPS to shed load in NER 3 O/D by NR & NER – Both SPS to operate 4 Restriction of Generation(upto 200 MW depending upon the line loading above SIL) at Farkka and Kahalgaon through SPS 5 Restrictionover injection from WR. 6 Restriction under drawl from ER constituents through SPS 7 Generation reduction(upto 200 MW depending upon the line loading above SIL) through SPS at Sagardigi, Bakreshwar in case of loading of Farkka-Malda 8 Restrict over drawl by BSEB in case of overloading of Kahalgaon-Biharshariff(load shed at 132KV Substation Gaya, Jahanabad, Bodh gaya)

2 ER-NER 400KV Farakka-Malda

1 Load shed through SPS in NER 2 Restriction of Generation(upto 150 MW depending upon the line loading above SIL) at Farkka through SPS 3.Generationreduction(upto 150 MW depending upon the line loading above SIL) through SPS at Sagardigi, Bakreshwar 4. Increase Generation at Teesta through manual action

3 ER-SR 400KV Rourkela-Talcher

1 SPS to shed load in Odisha if it is O/D at 132 kV Nayagrah, Chandhka. 2 SPS to shed load in W. Bengal (particularly in south Bengal areaat 132 kV Barasat)if it is O/D

4 WR-ER 1. 400 kV Maithon-Khalgaon

2. 400 kV Khalgaon-Biharsariff

3. 220 kV Budhipadar-Tarkera

1. Injection Reduction from WR by SPS. 2 Generation reduction (upto 150 MW depending upon the line loading above SIL)through SPS at Mejia’B’, DSTPS of DVC. 3 Generation reduction (upto 150 MW depending upon the line loading above SIL)through SPS at IPP visSEL and MPL.

5 SR-ER 1. 400 kV Talcher-Rourkela

1 Restrict over generation(upto 300 MW depending upon the line loading above SIL) at TTPS, Indravati, Balimela and Upper Kolabthrough SPS

2Restriction in generation (upto 150 MW depending upon the line loading above SIL) of West Bengal through SPS if it is under drawing at KTPS, Bakreshwar

6 NER-ER 400 kV Purnea-Muzzafarpur

1 Restriction of Over injection of NER by SPS 2 Restriction of Over injection of (upto 200 MW depending upon the line loading above SIL)Teesta, Tala and chukhaby SPS


82

Annexure- 2.D-Action Plan for Loss of Loss of generation>1000MW/high capacity corridor High Capacity Corridor Tripping

Line Action

400kV Farakka-MaldaS/C 1 O/D only by NR – SPS to shed load in NR 2 O/D only by NER – SPS to shed load in NER 3 O/D by NR & NER – Both SPS to operate 4.Restriction of Generation(upto 200 MW depending upon the line loading above SIL) at Farkka through SPS 5 Restriction of over injection from WR. 6 Restriction under drawl from ER constituents through SPS. 7 Generation reduction(upto 300 MW depending upon the line loading above SIL) through SPS at Sagardigi, Bakreshwar

400kV Rourkella-Talcher S/C 1 SPS to shed load in Odisha at Meramandali\ Mendhasal/ Bhanjnahgar areas,

if it is O/D. 2 SPS to shed load in W. Bengal at Kharagpur/ Bishnupur/ Arambag/ Jeerat if it is O/D 3 If Both Orissa and West Bengal is overdrawing SPS to operate to shed load in both the control areas

400kV Kahalgaon-Biharshariff S/C

1 SPS to shed load in NR in case of O/D by NR 2 SPS to shed load around Biharshariff (132KV Substation Gaya, Jahanabad, Bodhgaya) in case of O/D by BSEB 3 Restriction of Generation(upto 250 MW depending upon the line loading above SIL) at Khalgaon through SPS 4 O/D by NR as well as BSEB – Both SPS to operate

400kV Maithon – Kahalgaon S/C

1 SPS to shed load in NR in case of O/D by NR 2 SPS to shed load around Biharshariff (132KV Substation Gaya, Jahanabad, Bodh gaya) in case of O/D by BSEB 3 Generation reduction (upto 300 MW depending upon the line loading above SIL) through SPS at Mejia’B’, DSTPS of DVC. 4 Generation reduction (upto 300 MW depending upon the line loading above SIL) through SPS at IPP vis SEL and MPL

400kV SEL – Rourkella S/C 1 SPS to reduce generation in Chattisgarh area / Korba in WR in case of U/D by WR 2 SPS to reduce generationupto 300 MW depending upon the line loading above SIL) of SEL in case of O/I by SEL 3 U/D by WR and O/I by SEL – Both SPS to operate

400 kV Purnea-Muzzafarpur S/C

1.O/D only by NR – SPS to shed load in NR 2 Reduction of Over injection (upto 450 MW depending upon the

line loading above SIL)of Teesta, Tala and chukha 3 Restriction of Over injection of NER by SPS

400KV Kahalgaon-Barh S/C 1 SPS to shed load in NR in case of O/D by NR 2 Generation reduction (upto 300 MW depending upon the line

loading above SIL)at Kahalgaon power station

220kV Budhipadar-Tarkera S/C SPS to shed generation in Chattisgarh area of WR, Vedanata (VAL), IB TPS, 220 kV SEL(upto the order of 200 MW depending upon the line loading) at 220Kv


83

Annexure- 2.D-Action Plan for Loss of Loss of generation>1000MW/high capacity corridor

Sudden Loss of Generation >1000MW:- Generating plant Action

1 Farakka Super Thermal Power station( Relief of 1086MW approx.)

132KV Bishnupur (120 MW), Behrampur (110 MW), Barasat (130 MW), Burdwan (90 MW), Malda,

Ukhara, Bolpur, MankaDharampur 220 kV Muchipara (130MW), Parulia(130 MW), Barjora (100MW)

2 Kahalgaon Super Thermal Power station (relief of 780MW approx.)

132KV Substation Katihar, Saharsa, Supaul, Udayganj, Navgachia, khagaria (80Mw) 132KV Substation Gaya, Jahanabad, Bodh gaya (130MW) 132KV Substation Dehri, Sonnagar, Karmnasa (120MW) 220KV Muzzafarpur (300MW)

3 Talcher super Thermal Power Station (Relief of 500MW approx.)

132KV Jeynagar,Theruvali,Behrampur (110 MW), Nayagrah, Chandhka(100 MW), Brajrajnagar, Bargarh (120 MW), bidanasi (70mw), choudwar (50MW), cuttack (50MW)

4 Kolaghat Thermal Power station (Relief of 936MW approx.)

132KV Bishnupur (120 MW), Behrampur (110 MW), Barasat (130 MW), Burdwan (90 MW), Ramgrah(126 MW) 220 kV Muchipara (130MW), Parulia(130 MW), Barjora (100MW)

5 Bakreshwar Thermal Power station (Relief of 936MW approx.)

132KV Bishnupur (120 MW), Behrampur (110 MW), Barasat (130 MW), Burdwan (90 MW), Ramgrah(126 MW) 220 kV Muchipara (130MW), Parulia(130 MW), Barjora (100MW)

6 Maithon Power Ltd (Relief of 986MW approx.)

132KV Adityapur (100 Mw), Namkum (90MW), Hatia (120MW) 132KV Girdih(100 Mw), Burdwan (90 MW), Jamsedpur (100MW), Ramgrah(126 MW), 220 kV Muchipara (130MW), Parulia(130 MW)


84

Annexure-2.E- Existing feeder-wise detail of UFR

STATUS OF STAGEWISE UNDER FREQUENCY RELAYS (UFRs) INSTALLED AT DIFFERENT SUB-STATIONS /

FEEDERWISE / EXPECTED LOAD RELIEF (MW) OF THE ER CONSTITUENTS

Stages Sl. No.

Name of EHT Sub-stations

Connected 33 kV Feeders Load in MW

BSEB

1 48.8 Hz

Frequency

1. Gaighat Meena Bazar 15 MW

2. Fatuah Katra 15 MW

Meena Bazar 22 MW

3. Mithapur PESU – V 18 MW

TOTAL 70 MW

II 48.6 Hz

Frequency

1. Gaighat City 20 MW

2. Mithapur PESU – I & II 22 MW

TOTAL 42 MW

III 48.2 Hz.

Frequency

Nil Nil Nil

DVC-A.

I 48.8 Hz.

Frequency

1. Belmuri WBSEB Belmuri 22.5 MW

2. Putki JSEB Godhor f1(14) + Bhuli f2 (5.1) 17.2 MW

JSEB Ganeshpur (f1)(12) 10.8 MW

II 48.6 Hz.

Frequency

3 Putki BCCL Bastacola (12.5 ) BCCL Bhalgora (13.5) BCCL Katras (7.2) + JSEB Katras (10) +

JSEB KatrasSijua (2.5)

41.1 MW

4. Ramgarh CCL Giddi (16) 14.4 MW

CCL Sirka (6) 5.4 MW

III 48.2 Hz.

Frequency

5. Kumardhubi DPSCO Dishergarh 28.8 MW

JSEB Mugma 15.3 MW

6. Kalipahari WBSEB Kanyapur (29) + ECL Satgram (Fdr2 ) (5)

30.6 MW

DPSCO Sheebpur 34.2 MW

DPSCO J. K. Nagar 18.0 MW

DVC B. UFR setting for Emergent Condition of the system

47.6 Hz. 1. DPSCO Luchipur 33.8 MW

2. Koderma JSEB Koderma 27.0 MW

BalajeeElectrosteel Ltd. 11.0 MW

3 Giridih JSEB Giridih 27.0 MW

CCL Giridih 3.4 MW

4 Ramgrh JSEB Ramgarh (One Fdr) 31.5 MW

5 Burdwan WBSEB Burdwan 43.2 MW

6 Patherdih JSEB Gobindpur (19) + JSEB Mukunda (4) +

BCCL Koilanagar (4.7)

24.9 MW

7 Patherdih Patherdih Rail (14) 11.7 MW

85


JSEB

I 48.8 Hz.

Frequency

1.

132 / 33 kV Hatia Argora 09 MW

2. 132 / 33 kV Adityqapur Adityapur - I 17 MW

II 48.6 Hz

Frequency

3.

132 / 33 kV Adityqapur Adityapur - II 13 MW

III 48.2 Hz

Frequency

4. 132 / 33 kV Hatia Brambey 11 MW

5. 32 / 33 kV Namkum Kokar ( R ) 17 MW

OPTCL A.

I 48.8 Hz.

Frequency

1. Bolangir 33 kV Dumberbhal 003 MW

33 kV Dunguripali 010 MW

33 kV Patnagarh 006 MW

2. Bargarh 33 kV Dunguri 010 MW

3. Jaipur Road 33 kV Anandpur 010 MW

4. Bhadrak 33 kV Dhamnagar

012 MW

33 kV Gopinathpur 011 MW

5 Bhanjanagar 33 kV Khatribarpur 004 MW

33 kV Belaguntha 004 MW

33 kV Surada 007 MW

II 48.6 Hz

Frequency (Instant)

6 Aska 33 kV Buguda 006 MW

33 kV Nuagaon 006 MW

Berhampur 33 kV Chikiti 007 MW

Cuttack 33 kV Balikuda 008 MW

Balasore 33 kV Nilagiri 010 MW

Theruvali 33 kV Bisam Cuttack 005 MW

Sambalpur 33 kV Rengali 006 MW

33 kV Putibandh 014 MW

Rourkela 33 kV Lathikata 015 MW

III 48.2 Hz.

Frequency

Chandaka 132 kV Nimapada 025 MW

Duburi 132 kV Duburi – Bhadr – Jajpur (Town) 080 MW

86


WBSETCL

I 48.8 Hz.

Frequency

1. Liluah 132 kV S/Stn. Liluah, Kona, Baltikuri I & II, Jangalpur, Makardah

63 MW

2. Falta 132 kV S/Stn. FEPZ IV

08 MW

3. NJP 220 / 132 kV S/Stn. Group Control Transformer for 11 kV Feeder &Rabindranagar 33 kV Feeder

10 MW

II 48.6 Hz.

Frequency

4. Siliguri 132 kV S/Stn. Deshbandhupur A, Rabindranagar, Siliuguri I & II Housing Board

60 MW

5. Darjeeling 132 kV S/Stn. LKEBONG Happy Valley &Ghoom 35 MW

III 48.2 Hz.

Frequency

6 Salt Lake 132 kV S/Stn. M1-1, M2-1 & II, M3-I & II, M5-1 & II

83 MW

7 NBU 132 kV S/Stn. UJANU, TCF, KHANTAL, PANSIDEWA TEESTA 11 KV, BAGDOGRA – 11 KV

23 MW

IV 47.6 Hz.

Frequency

8. Jeerat 400 kV S/Stn. 132 kV Barasat I & II, 132 kV Ashoknagar I & II, 220 kV Kasba I, II & III

&Lakshmikantapur

540 MW

9 Durgapur 220 kV S/Stn. 132 kV Bolpur Feeder, 132 kV Sainthia Feeder, 132 kV Bishnupur I & II Feeder

160 MW

10. BTPS 132 KV AdisaptagramCkt. I & II 60 MW

CESC

I 48.8 Hz.

Frequency

1. Majerhat S/Stn.(Gp – 1) 33 kV Barisha T3

Summer Winter

6 MW 5 MW

33 kV Thakurpukur T1 13 MW 7.5 MW

33 kV F. Chakmir S/S-I / Behala T- 1 4.5 MW 2 MW

Jadavpore S/Stn. (Gp – 1)

33 kV F. Tollygunge D/S T – 1 13 MW 6 MW

Ballygunge East D/S T – 1 ( 6kV T-1)

9 MW 6 MW

Fore Shore Rd D/S ( 4 Nos. 6 Fdrs.) 17.2 MW 9.8 MW

Princep St D/S ( 5 nos. – 6 Fdrs.) 12.8 MW 10 MW

2 Majerhat S/Stn. (Gp – 2) 33 kV F. Thakurpukur T-2/Behala (N) T-1

26 MW 14 MW

33 kV F. Tollygunge D/S T-1/South City T-1 Shalimar D/S ( 5 nos. 6 kV

Fdrs)

21 MW 8.5 MW

Jadavpore S/Stn.(Gp – 2)

33 kV F. Tollygunge D/S T-1/South City T-1

26 MW 14 MW

Shalimar D/S ( 5 Nos. 6 kV Fdrs) 7.3 MW 6.1 MW

II 48.6 Hz.

Frequency

3 Ritchie D/S 6 nos. 6 kV Fdrs 10.3 MW 7.9 MW

Canal D/S 6 nos. 6 kV Fdrs 17.6 MW 8.6 MW

Chakmir S/Stn. All 33 kV Fdrs& 55 MVA T – 1 45 MW 29 MW

Jadavpur S/Stn. 33 kV F. Jadavpur T3, Jadavpur T1

23 MW 12 MW

III 48.2 Hz.

Frequency

BRS (Liluah S/Stn.) Import 1, 2 & 3 110 MW 80 MW

87

Annexure-2.F- Islanding schemes

Existing Islanding schemes

Station/System Islanding scheme Criteria

CHPC (Bhutan) One machine (84 MW) alongwithThimpu Load gets islande with

opening of bus coupler breaker

Low Frequency

( 47.0Hz)

CESC The entire system gets islanded at Kasba ( the synchronising

point)

Low frequency

(47.8 Hz) Or

High frequency

(52.5 Hz)

NALCO(CPP in Orissa

system)

Main –I bus connects all lines connecting OPTCL Network

Main –II bus connects plant load and generators

Bus coupler breaker opens to isolate plant with generators from

rest of the system

Low Freq( 47.4

Hz)

ICCL(CPP within

Orissa system)

The plant gets connected to OPTCL network at 132kV.

The 132/33 kV Transformer gets isolated from 132kV system

Low Freq ( 47.5

Hz)

RSP (CPP in Orissa

system)

CP2 has 2 units 60MW each generating at 11kV and connected to

132 bus through 132/33 transformer

CP1 has 3 units, 45 MW each, generating at 6.6 kV and connected

to 33 kV bus through 33/6/6kV Transformer

Scheme I : All units gets islanded by opening of 132kV lines

Scheme II: One unit may remain with Grid and get islanded by

opening of 132kV and 33kV Bus coupler CBs

Low

frequency(Both

the schemes

operate at 47.6

Hz)

Bhushan Power &

Steel (CPP in Orissa

system)

130MW TG#1 & TG#2 will get islanding status in Governor, AVR

and Siprotect Relays through PLC Logic. For this all status of

breaker in MRSS (220kV Main breaker# 1,220kV Main breaker#2,

and Bus coupler) and 220kV cable feeder #1 at 130MW power

plant wired up to PLC in 130MW

Arya ISPAT and

power Ltd. (CPP in

Orissa system)

Whenever the 18 MW TG set is running in synchronization

condition with OPTCL Grid following relays have been

envisaged for islanding purpose of 18 MW TG set:

1)MICOM-P341, Areva make

2)6RW 6000, Siemens make

MICOM-P341 shall sense any rate of changed of frequency and

the variation of voltages between Grid supply and generation.

Accordingly, it shall give trip command to Grid incomer

breaker.

Instead of above, the electrical quantities like U/V, O/V, U/F,

O/F are measured by MICOM-P341 as well as 6RW 6000 and

give trip command to Grid incomer breaker

Under

frequency 47.5

Hz for 2.5 Sec

Over Frequency

52.6 Hz for 2.5

Sec

88

Annexure-2.F -Existing Islanding schemes

Maithon Ispat

Limited (CPP in

Orissa system)

In the scheme, Micom P 341 Relay, Areva Make, operates during Grid

Disturbance and it gives Trips command to SMS TIE 2 breaker and

220 kV incomer breaker and consequently incomer breaker gives trip

command to 20/25 and 28/35 MVA transformer 220 kV incomer

breaker and 11 kV ALONE Breaker through interlocks

IFFCO (CPP in Orissa

system)

Whenever there is a disturbance in the system, the relay

calculates the current &voltage parameters and evaluates the

type of fault. Then the relay gives the alarm/ trip command.

When a trip command actuates by the relay, it operates the

master trip relay and subsequently trips the corresponding

132KV Grid incomer breaker. This results in clearing the fault

and isolating the TG set from feeding the fault current. Also

there is a provision for tripping of downstream 33KV Grid

Under

frequency 48.0

Hz for 0 Sec

Over Frequency

52.0 Hz for 1.0

Sec

Hindalco(CPP in

Orissa system)

The power system of CGP of Hindalco Industries Ltd is

connected to grid at 132 kV level through two number of Alco

feeders from Burla Power House to their 132 kV main receiving

substation. They have got grid islanding scheme in order to

survive during grid disturbance. The disturbance in the grid is

sensed by the Numerical Relay Micom P 341 through following

four criteria and it opens the grid connecting breakers in their

main receiving substation.

Under

frequency 48.0

Hz

Over Frequency

51.5 Hz

IMFA (CPP in Orissa

system)

Islanding of 108 MW captive Power Plant is done by sensing

frequency

Under

frequency 48.0

Hz

Rate of fall of

frequency

0.8Hz/Sec

IBTPS Islanding of IBTPS is done using LADR (Load Accessed

Directional Relay) technique.

From every feeder, lock out tripping pulse is extended to LADR

relay at BC panel. Continuously the dI/dt on the system due to

the available of target loads and enerators are monitored by

the relay and as per the

allowable load limit, this relay sends command for shedding.

Different proposed islanding scheme:-

Islanding Scheme:-

Bus-1:- IB (1,3), AT1&2, Korba-2, Bhusan-(1,2), SPS

Bus-2:- IB (2,4), Vedanta(1,2), Korba-3,Katapali (1,2)

Tarkera(1,2), Raigarh

89

VAL (CPP in Orissa

system)

VAL is a captive power plant having generation of 9 x 135 MW

and connected to the grid at 220 kV level via 220 kV VAL-

Budhipadar D/C line. It has a facility to island itself from grid in

case of any sever disturbance in grid

Under

frequency

48.5Hz

Rate of fall of

frequency 1.2

Hz/Sec 0.2 Sec

delay.

Under

frequency 48.0

Hz 0.5 Sec

delay.

Bokaro steel

ltd.(DVC)

Get islanded with 180MW load along with its captive

generation

Under

frequency 47.5

Hz

Eastern Region -Proposed islanding schemes

Station/System Islanding scheme (LOAD) Criteria

FSTPP Following loads are considered for islanding of one unit of Farakka Kahalgaon, Sabour, Banka, Sultangunj, Lalmatia, Dumka, sahebgunj with total load of 147MW.

Under frequency 47.6Hz

Bakreswar TPS Following loads are considered for islanding of one unit of Bakreshwar TPS Bakreshwar, satgachia, Kanaya, Gokarn, Raghunathpur, Lalgola, Katwa with total load 335MW


Bandel Following loads are considered for islanding of one unit of Bandel TPS Plant load, Adisaptgram (118Mw)


MPL Load near Maithon and Kalyaneshwari Under frequency 47.6Hz

KhSTPP Load at Plant load, Biharshariff Under frequency 47.6Hz

TSTPP Load at Talcher and Meeramandali Under frequency 47.6Hz

Kolaghat TPS Load at Kolaghat, Tamluk, Uluberia, Domjur, Jangipara Under frequency 47.6Hz

DSTPS Plant load and Load near Jamshedpur, Ramchandrapur, Adityapur, Chandil


90

EXHIBIT 3

AUTOMATED DEFENCE PLAN FOR WESTERN REGION

91

Annex-3.1- Automatic Defence Plan summary for Secure Operation of grids……..Western Region

Gujarat System

S No Logic Control Action

Manual or Automatic




Remarks

WESTER

N R

EGIO

N-G

UJA

RA

T

1 ∆ P > 150 MW ∆ P = Actual-Schd and freq < 50 Hz

Shed load in Gujarat in identified groups each group constituting 150 MW or 12% of schedule. Rotation logic and sequence to be programmed at SLDC and RLDC PLCs

Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC after 15 minutes) Stage 3 : Backup (from WRLDC PLC after 20 minutes)


signal sent from LDC to selected 220/132/66 kV substations for tripping of feeders to get desired relief

The feeders list is given in Annex 3.C. The confirmation for the feeder & grouping need to be finalized.


Send signal to designated power stations A-E. Rotation logic and sequence to be programmed at SLDC and WRLDC PLC

Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC 15 minutes) Stage 3 : Backup (from WRLDC PLC in 25 minutes)

Wide Area: Schedules & Drawal from SCADA system at LDCs. UNDERDRAWALS AND OVER INJECTIONS

Wide Area: signal sent from LDCs/WRLDC to power stations

Power station A: Vadinar(1200) Power station B: ADANI(4260) Power Station C: Wanakbori(1470) Power Station D:Torrent(1637) Power Station E: Ukai,SLPP, Kutch,Akri, Sikka(1640) Total capacity:10207 MW@ The power stations can either wire the same for unit tripping or generation reduction through secondary control.

3 Voltage <200 kV at sub-station for more than 5 minutes

Shed load at the selected 220 kV sub-stations identified in S no 1 above.

Stage 1: Alarm (208 kV) Stage 2: Automatic (200 kV for more than 5 minutes) Stage 3: 185 kV 30 seconds

Local area: Bus voltage Measurement at the selected 220 kV substations

Local area:

Under Voltage Load Shedding (UVLS). NO SCHEM Exist As of now. UVLS relays required one each at the 220 kV sub-stations identified at S no. 1 above. Scheme proposed at Jetpur

4** ICT / line

loading

crossing

normal

operating

limits



Local area: 400 kV Hadala - Jetpur flow exceeding 500 MW towards Jetpur

Wide Area : Signal sent fromJetpur to 220 kV Jetpur and 400 kV Essar(Vadinar)

Identify 132 kV and 66 KVfeeders atJetpur substation. Reduce gen at Essar(Vadinar)



Local area: 400 kV SSP-Asoj/Kasor flow exceeding 500 MW each circuit towards Asoj/Kasor

Wide Area : Signal sent from Asoj to 132 kV Asoj and Gotri substations

Identify 132 kV and 66 KV feeders each at Asojr and Gotri substations. Note: GETCO already has SPS for Overloading of Adani-Sami-Dehgam, Adani-Versana/Hadala and tripping of Mundra-M’garh HVDC.


Load Shed down stream

Automatic Local area: No of measurement aggregate in LDC SCADA

Wide Area: Signal sent from LDC to many areas in the state

92



Automatic Local area: measurement at CGPL s/s for Change of 1000 MW on sum of lineflows on Bachhau, Chorania and Jepur lines.

Wide Area: Trip feeders in Gujarat and Maharashtra as per share allocation

WESTER

N R

EGIO

N-G

UJA

RA

T


Load Shed in designated area

Automatic


Wide Area: Signal sent to 220/132/11kV SS

V'chal-Asoj


Gujarat Peak Load: 12000 MW UFR to cover at least 60% or 7200 MW. i.e. 65x220 KV Substations.

Automatic Local Local 49.0 Hz : 14 Substations: 1540 MW 48.8 Hz: 17 Substations: 1870 MW 48.6 Hz : 17 Substations: 1870 MW 48.4 Hz : 17 Substations: 1870 MW


designated feeder in each control area.

Automatic Local Local UFR 4 of Sl No. 8


Power stations, Loads Automatic Local Local Please refer Annex 3.B


93

Annex 3.2- Automatic Defence Plan summary for Secure Operation of grids……..Western Region

Chattisgarh System

S No


Manual or Automatic




Remarks

WESTER

N R

EGIO

N-C

HA

TTISGA

RH


Shed load in Chattisgarh in identified groups, each group constituting 150 MW or 12% of schedule. Rotation logic and sequence to be programmed at SLDC and RLDC PLCs




The feeders list is given in Annex 3.D. The confirmation for the feeder & grouping need to be finalized.


Send signal to designated power stations A-C Rotation logic and sequence to be programmed at SLDC and WRLDC PLC


Wide Area : Schedules &Drawal from SCADA system at LDCs. UNDERDRAWALS AND OVER INJECTIONS


Power station A: Korba(east) (440MW) Power station B: Korba(East-ext)(500) Power Station C: Korba(west)(840) Total capacity:1780MW The power stations can either wire the same for unit tripping or generation reduction through secondary control.





Local area:

Under Voltage Load Shedding (UVLS). Exist at Indore 400 kV __UVLS relays required one each at the 220 kV sub-stations identified at S. no. 1 above.

4**

ICT / line loading crossing normal

operating limits

Reduce Generationat designated power stations


Local area: 220 kV Korba(W)-Kotmikla D/C exceeds 180MW each

Wide Area: Signal sent from Korba(w) to Gen stns at 220 kV and 400 kVKorba(W)

Reduce generation by 100MW each at 220 kV and 400 kV generating stations at Korba(W)

Reduce Generation at designated power stations


Local area: 220 kV Korba(E)-RaigarhS/C exceeds 180MW OR 220 kV Raigarh-Raigarh D/C exceeds 180MW each

Wide Area: Signal sent from Raigarh to Gen stns at Korba(E), JSPCL(C’garh control area), DSPM, BALCO(C’garh control area)

Reduce generation by 100MW each at Korba(E), DSPM JSPCL and BALCO

94


Load Shed down stream Automatic Local area: No of measurement aggregate in LDC SCADA

Wide Area: Signal sent from LDC to many areas in the stte

WESTER

N R

EGIO

N-G

UJA

RA

T 6 Sudden loss of

generation > 1000 MW or loss of high capacity corridor


Load Shed in designated area Automatic



Sipat-Indore


Chhatisgarh Peak Load: 3300 MW UFR to cover at least 60% or 1980 MW. i.e 18x220 KV Substations.








95

Annex 3.3- Automatic Defence Plan summary for Secure Operation of grids……..Western Region

Maharastra System

S No


Manual or Automatic Measurements as input

for control action (Local / Wide Area)


Remarks

WESTER

N R

EGIO

N-M

AH

AR

ASTR

A


Shed load in in identified groups, each group constituting 150 MW or 12% of schedule. Rotation logic and sequence to be programmed at SLDC and RLDC PLCs




The feeders list is given in Annex 3.E. The confirmation for the feeder & grouping need to be finalized.






Power station A: Nasik, Bhusawal(1570MW) Power station B: Paras,Parali(1630) Power Station C: C;pur(2340) Power Station D: K’kheda(1480) Power Station E@: Uran, Trombay, Dahanu(, JSW(3802) Total capacity:10822MW The power stations can either wire the same for unit tripping or generation reduction through secondary control.





Local area:

Under Voltage Load Shedding (UVLS). NO SCHEM Exist As of now. UVLS relays required one each at the 220 kV sub-stations identified at S no. 1 above. Scheme is proposed at 400 kV Karad

4**




Local area: 400 kV Parli-Lonikhand flow exceeding 500 MW each circuit towards Lonikhand

Wide Area : Signal sent from lonikhand to 220 kV Theur and Bhosari substations

Identify 132 kV and 22 KV feeders each at Theur and Bhosari substations. Note: MSETCL already has intertripping schemes for overloading of Padgha, Aurangabad, Babheleshwar, Lonikhand, Parli, Kalwa, Jejuri and Chakan 400/220 kV ICTs.




96



Automatic Local area: measurement at Khandwa S/S for Change of 1000 MW on Seoni-Khandwa D/C or Khandwa-Dhule D/C

Wide Area: In case of Seoni-KhndwaD/C trip feeders in MP near Nepanagar, Julwania,Nimrani,Chhegaon In case of either of the trippings trip feeders in Dhule,Malegaon,chalisgaon,Padghe areas

WESTER

N R

EGIO

N-M

AH

AR

ASTR

A


Automatic Local area: measurement at Parli s/s for Change of 1000 MW on parli-Lonikhand D/C

Wide Area: Trip feeders in Lonikhand and Karad areas in Maharashtra


Automatic Local area: measurement at Bhadrawati s/s for Change of 1000 MW on Raipur-Bhadrawati -2&3 or Bhilai-Bhadrawati and Raipur-Bhadrawati-I

Wide Area: Trip feeders in Maharashtra


Automatic Local area: measurement at CGPL s/s for Change of 1000 MW on sum of lineflows on Bachhau, Chorania and Jepur lines.

Wide Area: Trip feeders in Gujarat and Maharashtra as per share allocation



Automatic Wide Area Synchrophasor measurements at RLDC/SLDC


Korba-Kalwa Gwalior-Dhule


Maharashtra Peak Load: 17500 MW UFR to cover at least 60% or 10500 MW. i.e 100x220 KV Substations.








97

Annex 3.4-Automatic Defence Plan summary for Secure Operation of grids……..Western Region

Madhyapradesh System

S No


Manual or Automatic




Remarks W

ESTERN

REG

ION

-MA

DH

YA

PR

AD

ESH


Shed load in Madhyapradesh in identified groups, each group constituting 150 MW or 12% of schedule. Rotation logic and sequence to be programmed at SLDC and RLDC PLCs




The feeders list is given in Annex 3.F. The confirmation for the feeder & grouping need to be finalized.


Send signal to designated power stations A-C Rotation logic and sequence to be programmed at SLDC and WRLDC PLC




Power station A: Amarkantak (450MW) Power station B: Satpura(1142) Power Station C: SGTPS(1340) Total capacity:2932MW The power stations can either wire the same for unit tripping or generation reduction through secondary control.





Local area:

Under Voltage Load Shedding (UVLS). Exist at Indore 400 kV UVLS relays required one each at the 220 kV sub-stations identified at S no. 1 above. Scheme is proposed at Bhopal, Bina

4**




Local area: 400/220 kV ICTs at Khandwa exceeds 250MVA each towards 220 KV.

Wide Area : Signal sent from Khandwa to 220 kV Chhegaon, Nepanagar substations

Identify 132 kV and 33KV feeders each at Chhegaon and Nepanagar substations. Note: MPPTCL already has intertripping schemes for overloading of Nagda and Indore 400/220 kV ICTs as intimated by them,.



Local area: 220 kV Kotmikla-Amarkantak D/C exceeds 180MW each

Wide Area: Signal sent from Amarkantak to Rewa, Jabalpur, Katni,Kymore,Satna

Designated 132 kV and 33kV feeders to be identified .

98




To be part of item 1, 2 & 3 (selectable by user depending upon time)

WESTER

N R

EGIO

N- M

AD

HY

AP

RA

DESH



Automatic Local area: measurement at Khandwa S/S for Change of 1000 MW on Seoni-Khandwa D/C or Khandwa-Dhule D/C

Wide Area: In case of Seoni-KhndwaD/C trip feeders in MP near Nepanagar, Julwania,Nimrani,Chhegaon In case of either of the trippings trip feeders in Dhule,Malegaon,chalisgaon,Padghe areas



Automatic



V'chal-Gwalior


Madhya Pradesh Peak Load: 8000 MW UFR to cover at least 60% or 4800 MW. i.e 44x220 KV Substations.



Designated feeder in each control area.





99

Annex 3.A- Regional Level- List of ISGS for generation regulation & line loading crossing

normal operating limits

S No

Logic Control Action Measurements as input for control



Area)


Remarks WESTER

N R

EGIO

N- ISG

S



Stage 1 : Manual Stage 2 : automatic (from WRLDC PLC in 15 minutes)



Power station A: CGPL(1660) Power station B:KSTPS-I & II(2100),KSTPS-III(500) Power Station C: VSTPS –I, II & III (3260),Power Station D:Sipat-I & II(2980), E:RGPPL(1970); F: Kawas(656), G: Jhanore(657), H: NSPCL(500); I:JPL(1000); J:Lanco(600), K: ACB(135) Total capacity:14018MW The power stations can either wire the same for unit tripping or generation reduction through secondary control.

Line loading crossing the normal operating limits

S No

Logic Control Action Measurements as input for control



Control Action (Local / Wide Area) Remarks WESTER

N R

EGIO

N- K

ey lin

e lo

adin

g

crossin

g limits

1 Bhilai flow gate

Reduce generation at designated power stations and also shed load in designated areas


Local area: 400 kV Bhilaiflowgate exceeds 3200MW

Wide area: Signal sent from Bhilai to Gen stnsKorba(E), Korba(W), DSPM, LANCO, JPL and load centres Aurangabad,Akola,Wardha,Warora, Seoni, Chhindwara and Khapaswamy

Reduce gen by 50MW each at designated S/S and 132 kV and 33 kV feeders to be identified

2 SUGEN-Vapi

Reduce generation at designated power stations and also shed load in designated areas


Local area: 400 kV SUGEN-Vapi exceeds 500MW

Wide area: Signal sent from Vapi to SUGEN, Gandhar and to load centres Padghe and Boisar

Reduce gen 100MW at SUGEN and identify loads at 110kV Padghe and 110kV Boisar

100

Annex-3.B WESTERN REGION- Islanding Schemes

Sr No

State Capital Peak Load MW

Nearest Plant +capacity

Links Status

1 Maharashtra

Mumbai 3200 TATA, REL 2200MW

220 kV n/w from Grid at Kalwa/Tromay, Boisar/Borivali

Existing,

2 M.P Bhopal 200 HEG graphite, Satpura 1-5,6,7

220 kV Satpura-Itarasi-Bhopal(150 km)

NA

3 Chhattisgarh

Raipur 150 Nspcl: tech min:170;

bsp:170mw

400 kV nspcl-Raipur D/c, 14 kms

NA

4 Gujarat Ahmedabad 300 Sabarmati(400) Vatwa(100) GIPL-I(145)

Watwa, 15kms Existing

5 Goa Panajim 25MW REL,+GSPL(60) 27 kms NA

101

GUJARAT Load Shed Scheme Annexure-3.C

Sr.No. S/s

Name Feeder

Average Load

Selected for Remote Control

from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

1 1 ASEDA 4

Noa Available / To be

implemented Yes Yes Yes No Yes Yes No No

2 2 DUNAVADA 10 No No Yes Yes No No Yes No

3 3 Hajipur 19 No No Yes Yes No No Yes Yes

4 4 KALANA 6 No No Yes Yes No No Yes No

5 5 Katosan 13 No Yes Yes No No No Yes Yes

6 6 Akhaj 6 No No Yes Yes No No Yes No

7 7 AMBAJI 4 No No Yes Yes No No Yes Yes

8 8 AMIRGADH 10

9 9 Amodra 12

10 10 ANAVADA 27

11 11 Balodhar 8

12 12 BHADRADA 9

13 13 BHALAK 6

14 14 Chadarni 10

15 15 CHANDISAR 22

16 16 CHARADA 7

17 17 DAHISAR 4

18 18 Dalpur 14

19 19 DANTA 27

20 20 Dantod 12

21 21 DASAJ 4

22 22 Debhari 2

23 23 Dethrota 9

24 24 dholka City 13

25 25 Gadhi 4

26 26 GANGVA 27

102


Sr.No. S/s

Name Feeder

Average Load


from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

27 27 GIDASAN 13

28 28 Golvada 3

29 29 HEBATPUR 16

30 30 Hingtiya 11

31 31 HIRPURA 5

32 32 HPCL ( PRIVATE) 3

33 33 Ingoli 7

34 34 IQBALGADH 13

35 35 Itla 8

36 36 JALOTRA 27

37 37 JANGRAL 15

38 38 Kalidungari 5

39 39 KALYANA 6

40 40 KAMBOI 5

41 41 Kasana 3

42 42 Kerala 14

43 43 KHANPUR 11

44 44 Khatraj 8

45 45 Kherva 12

46 46 KHIMANA 11

47 47 KIMBUVA 15

48 48 Koth 14

49 49 Kundla 6

50 50 LADOL 5

51 51 Lai-ranasan 21

52 52 MAHARAJA CEMENT 4

53 53 Makadchampa 8

54 54 MALAN 7

55 55 Malpur 22

56 56 MANDALI 10

103


Sr.No. S/s

Name Feeder

Average Load


from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

57 57 Medha 7

58 58 Meghraj 23

59 59 Moti adraj 10

60 60 Mudarda 4

61 61 MUJPUR 4

62 62 Munpur 5

63 63 NAVA SUDASANA 3

64 64 Nikoda 15

65 65 OTALPUR 3

66 66 PALNPUR 2 9

67 67 Pansar 11

68 68 Poshina 2

69 69 Punsari 2

70 70 RAJPUR 8

71 71 Ramgadhi 2

72 72 RAMPUR 2

73 73 RASANA 1

74 74 RASULPUR 3

75 75 Rellawada 10

76 76 Sadara 4

77 77 SAMMDHI 12

78 78 SAMSERPURA 28

79 79 SATLASANA 20

80 80 SHANKHESWAR 6

81 81 Simej 8

82 82 Sinawada 8

83 83 soni 15

84 84 Sundarpur 8

85 85 Tharad 18

86 86 Udalpur 10

87 87 Unava 3

104


Sr.No. S/s

Name Feeder

Average Load


from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

88 88 VADASAN 4

89 89 VAKTAPURA 5

90 90 VALAM 6

91 91 VARAHI 7

92 92 VARETHA 12

93 93 Vasai(m) 9

94 94 VASAN 3

95 95 Veda 11

96 96 Vijaynagar 3

97 97 VIRAMPUR 2

98 98 Virpur 6

99 99 Didarada 6

100 100 Dudhava 7

101 101 Jaloya 4

102 102 Piluda 18

103 103 Runi 6

104 104 Tadav 4

105 105 BHAT 7

106 106 Chuda 23

107 107 dama 8

108 108 KAMALPUR 5

109 109 KANJ 6

110 110 KUHA 5

111 111 PATDI 9

112 112 Ranpur 15

113 113 Torda 16

114 114 VADGAM 7

115 115 VANOD 5

116 116 66 KV Jasdan-II(Gadhadiya)

8

117 117 66 KV Sultanpur 7

105


Sr.No. S/s

Name Feeder

Average Load


from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

118 118 66 KV Ramod 9

119 119 66 KV Mota Devaliya

8

120 120 66 KV Umrali 5

121 121 66 KV Jamwadi 8

122 122 66 KV Faldang 6

123 123 66 KV Virnagar 4

124 124 66 KV Bhadala 2

125 125 66 KV Lajai 6

126 126 66 KV Chanchapar 3

127 127 66 KV Vejalpar 1

128 128 66 KV GHUTU 6

129 129 66 KV KALIKANAGAR

7

130 130 66 KV Ravapar 1

131 131 66 KV Kagdadi 1

132 132 66 KV Kuvadava 7

133 133 66 KV Mavadi 4

134 134 66 KV NAGARPIPALIYA

3

135 135 66 KV Bangawadi 4

136 136 66 KV Limbada 5

137 137 66 KV Sindhavadar 2

138 138 66 KV Thikariyali 3

139 139 66 KV Khengarka 6

140 140 66 KV Bhojpara 6

141 141 66 KV Daldi 3

142 142 66 KV Lakaddhar 3

143 143 66 KV Mokha 6

144 144 66 KV Khambhara 8

145 145 66 KV Siracha 8

146 146 66 KV Talwana 4

147 147 66 KV Dumra 8

106


Sr.No. S/s

Name Feeder

Average Load


from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

148 148 66 KV Nirona 3

149 149 66 KV Nanimau 5

150 150 66 KV VAGHOT 1

151 151 66 KV Balasar 3

152 152 66 KV Amrapar 2

153 153 66 KV Gundaran 2

154 154 66 KV Simran 7

155 155 66 KV Gawadaka 7

156 156 66 KV Malaviya Pipariya

5

157 157 66 KV Khambhala 5

158 158 66 KV Tori 6

159 159 66 KV Kalatalav 6

160 160 66 KV Ratanpur 7

161 161 66 KV Dharwala 8

162 162 66 KV Malapara 7

163 163 66 KV Chavnd 3

164 164 66 KV Datha 6

165 165 66 KV Pasvi 5

166 166 66 KV Kadamgiri 4

167 167 66 KV Dungar 9

168 168 66 KV Otha 5

169 169 66 KV Vangar 2

170 170 66 KV Kadiyali 3

171 171 66 KV Gadhakada 4

172 172 66 KV Devala 4

173 173 66 KV Rabarika 4

174 174 66 KV Ghodidhar 6

175 175 66 KV Sardarnagar 6

176 176 66 KV Moti Dharai 1

177 177 66 KV Panvi 6

107


Sr.No. S/s

Name Feeder

Average Load


from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

178 178 66 KV Sar 9

179 179 66 KV Nathugadh 4

180 180 66 KV Kolki 5

181 181 66 KV Shethvadala 5

182 182 66 KV Raydi 6

183 183 66 KV Moti Paneli 2

184 184 66 KV Mandasan 5

185 185 66 KV Navi Haliyad 9

186 186 66 KV Khambhaliya 5

187 187 66 KV Vekariya 6

188 188 66 KV Mendapara 7

189 189 66 KV Vadala 0

190 190 66 KV Amarapur 6

191 191 66 KV Ishra 3

192 192 66 KV Alidar 7

193 193 66 KV Jashadhar 6

194 194 66 KV Singsar[Lodhva]

7

195 195 66 KV Sindhaj 6

196 196 66 KV Agatray 8

197 197 66 KV Patrama 2

198 198 66 KV Navagam 1

199 199 66 KV Lath 1

200 200 66 KV Nanadiya 3

201 201 66 KV Bhader 1

202 202 66 KV Wadhwan 7

203 203 66 KV Digsar 7

204 204 66 KV Dholia 9

205 205 66 KV Umarda 7

206 206 66 KV Lakhanka 6

207 207 66 KV Panshina 3

108


Sr.No. S/s

Name Feeder

Average Load


from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

208 208 66 KV Moti vavdi 7

209 209 66 KV VASTADI 4

210 210 66 KV DHOLERA 4

211 211 66 KV Bavli 10

212 212 66 KV Narali 7

213 213 66 KV Chandragadh

9

214 214 66 KV Baisabgadh 2

215 215 66 KV Gurukul 4

216 216 66 KV Virpur 6

217 217 66 KV Dhavana 6

218 218 66 KV Vanod 2

219 219 66 KV Kamalpur 3

220 220 66 KV PIPALI 9

221 221 66 KV PIPARTODA 7

222 222 66 KV NAVAGAM 5

223 223 66 KV Morkanda 7

224 224 66 KV Nagajar 9

225 225 66 KV Bhadukiya 5

226 226 66 KV Shapar 6

227 227 66 KV Beraja 4

228 228 66 KV Motavadala 4

229 229 66 KV Meghpar 7

230 230 66 KV Babarzar 3

231 231 66 KV Gorana 8

232 232 66 KV Modpar 5

233 233 66 KV Kanchapur 3

234 234 66 KV Gosa 2

235 235 66 KV Khageshri 8

236 236 66 KV Chhaya 3

237 237 66 KV Ramgadh 5

109


Sr.No. S/s

Name Feeder

Average Load


from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

238 238 66 KV Vanavad 3

239 239 66 KV Ambarama 6

240 240 66 KV Modpar 4

241 241 66 KV Bakharala 5

242 242

66KV BHACHHARWADA S/S 4

243 243 66KV BORDA 0

244 244 66KV DAHELI S/S 4

245 245 66KV DEDIAPADA 2

246 246 66KV NETRANG 9

247 247 66KV SADARAPANI S/S 1

248 248 66KV SAGBARA 3

249 249 220KV DAHEJ S/S 7

250 250 66KV HANSOT S/S 2

251 251 66KV KADOD 4

252 252 66KV MULLER S/S 2

253 253 66KV PALEJ 15

254 254 66KV PANETHA S/S 6

255 255 66KV ZANOR S/S 6

256 256 220KV MORA(L&T) 0

257 257 66KV JIAV 5

258 258 66KV KOSAD 4

259 259 66KV KOSMADA 2

260 260 66KV OLPAD 12

261 261 66KV SARTHANA 11

262 262 66KV ARETH 4

263 263 66KV KARANJ 14

264 264 66KV SIVAN 4

265 265 66KV TARSADI (KHARACH) S/S 9

110


Sr.No. S/s

Name Feeder

Average Load


from SCADA

Tele Control

MW 150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1 above

TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

266 266 66 KV AHWA S/S 2

267 267 66 KV DHARAMPUR S/S 9

268 268 66 KV FADVEL S/S 4

269 269 66 KV KAKADKOPAR S/S 4

270 270 66 KV KAPRADA S/S 2

271 271 66 KV KHERGAM S/S 7

272 272 66 KV NAVSARI CITY S/S 3

273 273 66 KV VANSDA S/S 5

274 274 66 KV WAGHAI S/S 3

275 275 VALSAD CITY S.S. 9

276 276 66KV BAMANIYA 6

277 277 66KV NIZER 11

278 278 66KV RUMKITALAV 0

279 279 66KV SHAMPURA 3

280 280 66KV UCHCHHAL 4

111

CHHATISHGARH Load Shed Scheme Annexure-3.D

Sr.No. S/s Name Feeder Average

Load Selected for Remote Control from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

RAIGARH

1 220 kV Rajgarh 33 kV Sarangarh-I Feeder 10.7 Noa Available / To be

implemented No No Yes Yes No No Yes Yes

2 132 kV Raigarh 33 kV Sarangarh -II

Feeder 10.8 No No Yes Yes No No Yes No

3 132 Sarangarh 33 kV Saraipali Feeder 4.5 No Yes Yes No No No Yes Yes

4 33 kV Sarangarh Feeder 9.7 Yes Yes Yes No Yes Yes No No

5 33 kV Baramkela Feeder 8.4 No No Yes Yes No No Yes No

6 33 kV Sarsiwa Feeder 10.1 Yes Yes Yes No Yes Yes No No

7 132 Baramkela 33 kV Baramkela Feeder 5.8

8 33 kV Salheona Feeder 6.9

9 33 kV Saria Feeder 11.8

10 33 kV Lendhra Feeder 4.9

11 132 kV Kharsiya 33 kV Nandeli Feeder 0

12 33 kV Chaple Feeder 4.4

13 33 kV Madanpur Feeder 5.2

14 33 kV Bhelwadih Feeder 0.5

15 132 kV Patthal

Gaon 33 kV Parshabahar

Feeder 3.2

16 33 kV Jashpur Feeder 3.5

17 33 kV Seetapur Feeder 4

18 33 kV Dharamjaygarh

Feeder 7.6

19 33 kV Lailunga Feeder 1.1

MAHASAMUND

20 132kV

Mahasamund 33 kV Arang Feeder 9.4

21 33 kV Rajim Feeder 12.2

22 33 kV Bagbahra Feeder 11.3

23 33 kV Fingeshwar Feeder 10.3

24 220 kV Paraswani 33 kV Patewa Feeder 6.8

25 33 kV Sirpur Feeder 0.9

26 132 kV Jhalap 33 kV Jhalap Feeder 6.4

27 33 kV Pithora Feeder 11

28 33 kV Raitham Feeder 1.9

29 33 kV Bawankera Feeder 8.1

30 132 Saraipali 33 kV Basana Feeder (1) 11.3

31 33 kV Basana Feeder (2) 10.2

112




Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

32 33 kV Sagarpali Feeder 2.5

33 33 kV Navarangpur

Feeder 12.9

34 33 kV Baloda Feeder 4.6

35 132 KV Bagbahra 33 kV Sunsuriya Feeder 1.8

36 33 kV Temari Feeder 0

CHAMPA CIR

37 132 kV Champa 33 kV Bamhinidih 8.1

38 33 kV Urga Feeder 7.3

39 33 kV Shakti Feeder 3

40 33 kV Kharsiya Feeder 5.9

41 220 kV Banari 33 kV Nawagarh 7.9

42 132 kV S/S Darri 33 kV Katghora (Rural) 4.7

43 132 kV S/S Shakti 33 kV Adhabhar Feeder 7.9

44 33 kV Malkharoda

Feeder-I 8

45 33 kV Malakharoda

Feeder-II 9

46 33 kV Faguram Feeder-1 0

47 33 kV Faguram Feeder -2 1.4

48 33 kV Nadehibhatta

Feeder 2.5

49 132 kV Akaltara 33 kV Baloda Bazar 7.7

50 33 kV Shivrinarayan 8.5

51 33 kV Akaltara 2 2.7

DURG

52 132 Kv Bhiali 33 kV Neonara 5.8

53 33 kV Patan 7.9

54 220 kV Curur 33 kV Balod 4.7

55 33 kV Pallari 1.8

56 33 kV Nipani 1.2

57 132 kV Dhamadha 33 kV Dhamadha 1.8

58 33kV Nankatti 2.1

59 33 kV Dalgaon 3.7

60 33 kV Saja 3.5

61 33 kV Parpodi 5.7

62 33 kV Liliya 2.9

63 132 kV Dalliraj 33 kV Mohala Feeder 4.1

113




Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

64 33 kV Bhantipratappur 9.5

65 33 kV Bald Feeder 3.9

66 132 kV Gunderdehi 33 kV Gunderdehi Feeder

67 33 kV Reeva Gahan

Feeder 4.6

68 33 kV Sikosha Feeder 3.1

69 33 kV Arjunda Feeder 1.3

70 132 kV Nawagarh 33 kV Nawagarh Feeder 4.2

71 33 kV Chhiraha Feeder 3.5

72 33 kV Sambalpur Feeder 3.9

73 132 kV Saja 33 kV Thelka Feeder 2.9

74 33 kV Bortara Feeder 0.8

75 33 kV Mohgaon Feeder 3.5

76 132 kV Bemetara 33 kV Matka Feeder 2.7

77 33 kV Bemetara Rural

Feeder 2.8

78 33 kV Sarada Feeder 2.2

BILASPUR

79 132 kV S/S Silpahri 33 kV Malhar 5.8

80 33 kV Bartori 3

81 132 kV S/S Bilaspur 33 kV Akaltara 6.3

82 33 kV Takhatpur 7.3

83 33 kV Belgahana 7.8

84 33 kV Kota 9.3

85 132 kV S/S Mungeli 33 kV Lormi 10.8

86 33 kV Pathariya 6.8

87 33 kV Takhatpur 6.2

88 33 kV Fasterpur 0

89 220 kV S/S Kotmikala 33 kV Kotmikala 1.5

90 33 kV Marwahi 1.5

91 33 kV Gaurela 5.6

92 33 kV Rani Atari 0.4

93 33 kV Pendra 4

94 132 kV

Rajnandgaon 33 kV Padpori 4.8

95 132 kV Kawardha 33 kV Pipariya Feeder 6

96 33 kV Bodla Feeder 10.1

114




Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2 above

TTC

Sudden Loss of 1000

Angular Diff

Any Other

97 33 kV Ruse Feeder 6.6

98 33 kV Indori Feeder 2.8

99 33 kV Lohara Feeder 4.6

100 33 kV Ramhepur Feeder 0.1

101 132 kV

Donagargarh 33 kV Tumdibod 1.5

102 220 kV Thelkadih 33 kV Khairagarh 5.7

103 33 kV Chumka 2.2

115

MAHARASTRA Load Shed Scheme Annexure-3.E

Sr.No.

S/s Name Feeder Avera

ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

Kalwa Zone

1 400KV Kalwa2 Nil No No Yes Yes No No Yes No

2 220KV Kalwa1 220/22KV (50 MVA)LTR1 27 NO No Yes Yes No No No Yes Yes

3 220/22KV (50 MVA)LTR2 28 NO No No Yes Yes No No Yes No

4 100KVMukund A 37 NO No Yes Yes No No No Yes Yes

5 100KVMukund B 36 NO No No Yes Yes No No Yes No

6 100KV Nocil A 30 NO No No Yes Yes No No Yes No

7 100KV Nocil B 40 NO No Yes Yes No No No Yes Yes

8 100KV Reliance 7 NO No No Yes Yes No No Yes No

9 100KV Vashi A 59 NO

10 100KV Vashi B 34 NO

11 220KV Uran 220/22KV LTR1 (50MVA) 14 Yes 14

12 220/22KV LTR2 (50MVA) 6 Yes 6

13 220KV Borivali Nil 0

14 400KV Khargar 220/33KV LTR1(50MVA) 31 Yes 31

15 220/33KV LTR2(50MVA) 28 Yes 28

16 220KV Mulund 220/22KV LTR1 31 NO

17 220/22KV LTR2 29 Yes 29

18 220/22KV LTR3 25 NO

19 220/22KV LTR4 28 NO

20 220KV Nerul 220/33KV LTR1(50MVA) 22 Yes 22

21 220/33KV LTR2(50MVA) 20 NO

22 220KV Trombay Nil 0

23 220KV Colourchem

220/22KV LTR1(50MVA) 25 NO

24 220/22KV LTR2(50MVA) 32 Yes 32

25 220/22KV LTR3(50MVA) 26 NO

26 220/22KV LTR4(50MVA) 7 NO

27 220KV Taloja 100KV Taloja -A 33 NO

28 100KV Taloja -B 41 NO

116


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

29 100KV BOC 11 NO

30 100KV FGIL 7 NO

31

220/22KV LTR1(100MVA)

47 Yes 47

32

220/22KV LTR2(100MVA)

50 Yes 50

33 220KV Mahape 220/22KV (50 MVA)LTR1 37 NO

34 220/22KV (50 MVA)LTR2 38 Yes 38

35 220/22KV (50 MVA)LTR3 24 NO

36 400KV Padghe 220/22KV LTR1 14 Yes 14

37 220/22KV LTR2 3 NO

38 220KV Apta 100/22KV (20MVA) LTR1 13 Yes 13

39 100/22KV (20MVA) LTR2 16 Yes 16

40 100KV JITA 21 NO

41 100KV Reliance 9 NO

42 100KV Khopoli A 25 NO

43 100kv Bhokarpara 21 NO

44 100KV Musco-A 35 NO

45 100KV Musco-B 38 NO

46 100KV Thal 17 NO

47 100KV Patalganga 14 NO

48 132KV Boisar-I 132/33KV (50MVA)LTR1 27 Yes 27

49 132/33KV (50MVA)LTR2 22 NO

50 132/11KV (20MVA)LTR1 9 NO

51 132/11KV (25MVA)LTR2 8 NO

52 132/11KV (25MVA)LTR3 8 NO

53 220KV Kandalgaon

220/22KV (50 MVA)LTR1 12 NO

54 220/22KV (50 MVA)LTR2 12 NO

55 100KV Roha-A 13 Yes 13

117


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

56 100KV Roha-B 13 NO

57 100KV Mhasala 9 NO

58 400KV Nagothane

220/22KV (25MVA)LTR1 8 Yes 8

59 220/22KV (25MVA)LTR2 8 NO

60 100 Ambarnath 100/22KV (50MVA)LTR1 17 NO

61 100/22KV (50MVA)LTR2 14 NO

62 100/22KV (50MVA)LTR3 20 Yes 20

63 100KV Bhiwandi 100/22KV (50MVA)LTR1 27 Yes 27

64 100/22KV (50MVA)LTR2 20 NO

65 100/22KV (50MVA)LTR3 29 NO

66 100/22KV (50MVA)LTR4 19 NO

67 100/22KV (50MVA)LTR5 25 NO

68 220KV Bombay -Dying

Nil 0

69 220KV Dombivali

220/22KV (50 MVA)LTR1 23 Yes 23

70 220/22KV (50 MVA)LTR2 30 NO

71 220KV Ghatghar Nil 0

72 220KV Kamba 220/22KV (50 MVA)LTR1 21 NO

73 220/22KV (50 MVA)LTR2 26 Yes 26

74 220/22KV (50 MVA)LTR3 26 Yes 26

75 220/22KV (50 MVA)LTR4 25 NO

76 220KV Kolshet 100/22KV (50MVA)LTR1 28 Yes 28

77 100/22KV (50MVA)LTR2 26 NO

78 100KV Kharbao 79 NO

79 220KV Temghar 220/22KV (50 MVA)LTR1 35 Yes 35

80 220/22KV (50 MVA)LTR2 36 NO

81 220/22KV (50 MVA)LTR3 31 Yes 31

82 220/22KV (50 MVA)LTR4 26 NO

118


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

83 220/22KV (50 MVA)LTR5 31 NO

84 100KV Padghe1 100/22KV (50MVA)LTR1 22 NO

85 100/22KV (50MVA)LTR2 17 NO

86 100KV Kharbao 11 NO

87 100KV Pise 17 NO

88 100KV Mohane 49 NO

89 100KV Murbad-A 17 NO

90 100KV Murbad-B 17 NO

91 100KV Shahapur-A 12 Yes 12

92 100KV Shahapur-B 12 NO

93 100KV Panjarpore 10 NO

94 220KV Mahad 220/22KV (50 MVA)LTR1 17 Yes 17

95 220/22KV (50 MVA)LTR2 16 NO

96 100KV Vasai 100/22KV (50MVA)LTR1 37 NO

97 100/22KV (50MVA)LTR2 38 NO

98 100/22KV (50MVA)LTR3 40 Yes 40

99 100KV TSS-I 35 NO

100 100KV TSS-II 5 NO

101 220KV Wada 220/22KV (50 MVA)LTR1 25 NO

102 220/22KV (50 MVA)LTR2 33 Yes 33

103 220/22KV (50 MVA)LTR3 30 NO

104 220/22KV (50 MVA)LTR4 31 Yes 31

Pune Zone

105 400KV Lonikand 220KV Kathpur 92 NO

106 220KV Khadaki 126 NO

107 220KV Sanaswadi A 155 NO

108 220KV Sanaswadi B 153 NO

109 220/22KV (50 MVA)LTR1 33 NO

110 220/22KV (50 MVA)LTR2 37 Yes 37

119


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

111 220KV Bosary 220/22KV (50 MVA)LTR1 33 Yes 33

112 220/22KV (50 MVA)LTR2 35 Yes 35

113 220/22KV (50 MVA)LTR3 40 NO

114 220KV Chinchwad

100KV Talegaon 45 Yes 45

115 100KV Ganeshkhind 40 NO

116 132KV Khiradi 66 NO

117 132KV Rahatani 79 NO 79

118 132KV Chakan 45 Yes 45

119 400KV Jejuri Nil 0

120 220KV Theur 132KV Yawat 56 Yes 56

121 132KV Sanaswadi 14 Yes 14

122 132KV Kharadi 64 NO

123 220/22KV LTR1(50MVA) 19 Yes 19

124 220/22KV LTR2(50MVA) 28 NO

125 220KV Baramati 220/33KV (50MVA)LTR1 20 NO

126 220/33KV (25MVA)LTR2 17 Yes 17

127 132KV Baramati 16 NO

128 132kv Bharat Force 4 NO

129 220KV Hinjewadi

220/22KV (50 MVA)LTR1 26 Yes 26

130 220/22KV (25 MVA)LTR2 24 NO

131 220/22KV (50 MVA)LTR3 0 NO

132 220KV Jejuri-I 220/33KV (50MVA)LTR1 13 Yes 13

133 220/33KV (50MVA)LTR2 13 NO

134 220KV Kurkumbh

132KV Janai 6 NO

135 132KV Daund 64 Yes 64

136 220/33KV (50MVA)LTR1 17 NO

137 220/33KV (50MVA)LTR2 16 Yes 16

120


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

138 220KV Parvati 132KV Rastapeth 39 NO

139 220/22KV (50 MVA)LTR1 47 NO

140 220/22KV (50 MVA)LTR2 26 NO

141 220/22KV (50 MVA)LTR3 33 NO

142 220/22KV (50 MVA)LTR4 26 NO

143 220KV Phursungi

132KV Kothrud 63 NO

144 132KV Kamthadi 26 NO

145 132KV Phursungi-A 64 NO

146 132KV Phursungi-B 62 NO

147 220kv Ranjangaon

132KV Whirlpool 54 NO

148 132KV Supa 40 NO

149 220/22KV (50 MVA)LTR1 31 NO

150 220/22KV (50 MVA)LTR2 26 Yes 26

151 220KV Solapur2 132KV Mohal 64 NO

152 132KV Naldurg 16 Yes 16

153 132KV Omarga 21 NO

154 132KV Akot 38 NO

155 132KV Degaon-1 26 NO

156 132KV Degaon-2 26 NO

157 132/33KV (50MVA)LTR1 26 NO

158 132/33KV (50MVA)LTR2 18 Yes 18

159 132KV Chinchali-kathi 22 NO

160 132KV Akkalkot 32 Yes 32

161 400KV Solapur3 Nil 0

162 220KV Jeur 132KV Kurduwadi 22 NO

163 132KV Karjat 24 Yes 24

164 132KV P'wadi 15 NO

165 220KV 132KV Velapur 17 Yes 17

121


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

Malinagar

166 132KV Bawda 41 Yes 41

167 132KV Shripur 0 NO

168 220/33KV (25 MVA)LTR1 26 NO

169 220/33KV (25 MVA)LTR2 26 Yes 26

170 132/11KV (25MVA)LTR1 6 NO

171

132/11KV (12.5MVA)LTR2

8 NO

172 220KV Urse 220/33 KV (50MVA)LTR1 11 NO

173 220KV Alephata 220KV Kathapur 99 NO

174 132KV Narayangaon 50 NO

175 220/33KV (50 MVA)LTR1 21 Yes 21

176 220/33KV (50 MVA)LTR2 21 Yes 21

177 220KV Pandharpur

110KV Pandharpur 9 NO

178 132KV Sangola 19 Yes 19

179 132KV Dighachi 35 NO

180 132KV Mangalwadha 26 Yes 26

Aurangabad Zone

Aurangabad DC 0

181 400KV Aurangabad3

220/33KV (50MVA)LTR1 27 Yes 27

182 220/33KV (50MVA)LTR2 21 NO

183 220KV Nanded 132KV Hingoli 26 NO

184 132KV Tamsa 26 Yes 26

185 132KV Nanded-I 32 NO

186 132KV Narsi 20 Yes 20

187 132KV Umari 13 Yes 13

188 132/33KV (50MVA)LTR1 11 NO

189 132/33KV (25MVA)LTR2 12 Yes 12

122


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

190 132/11KV (16MVA)LTR3 4 NO

191 132/11KV (25MVA)LTR4 3 Yes 3

192 220KV Parbhani 132KV Purna 18 Yes 18

193 132KV Jintur 38 NO

194 132KV Partur 34 Yes 34

195 132KV Parbhani2-A 30 NO

196 132KV Parbhani2-B 27 NO

197 132KV Pathari 28 Yes 28

198 220KV Aurangabad2

132KV Gangapur 28 NO

199 132KV SAT 4 NO

200 132KV Wajuj-1 31 NO

201 132KV Wajuj-2 31 NO

202 132KV Garware 12 NO

203 132KV Sawangi 12 NO

204 132KV Pishor 37 Yes 37

205 220KV Chitegaon

132KV Garware 7 NO

206 132KV Satara 25 Yes 25

207 132 KV Yeldari 132KV Risod 10 yes 10

208 132KV Jintur 10 NO

209 220KV Jalna 132KV Ambad 35 Yes 35

210 132KV Badnapur 7 NO

211 132KV Kahyanagar 42 NO

212 132KV MIDC 54 NO

213 220/33KV (50MVA)LTR1 35 NO

214 220/33KV (50MVA)LTR2 35 Yes 35

215 132KV Paithan 132KV Georai 25 NO

216 132/33KV (50MVA)LTR1 13 NO

217 132/33KV (50MVA)LTR2 13 Yes 13

123


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

218 132/11KV (10MVA)LTR1 4 Yes 4

219 132/11KV (10MVA)LTR2 3 NO

Parly2 DC

220 400KV Parly2 132KV Gangakhed 48 NO

221 132KV Kalam 37 NO

222 132KV MIDC 17 NO

223 220KV Parly-1 132/33KV (25MVA)LTR1 7 NO

224 132/33KV (25MVA)LTR2 15 Yes 15

225 220KV Beed 132KV Telgaon 54 Yes 54

226 131KV Beed-1 54 NO

227 132KV Beed-2 0 NO

228 132KV R'moha 0 NO

229 132KV Georai 32 NO

230 220KV Murud 220/33KV (50MVA)LTR1 14 Yes 14

231 220/33KV (25MVA)LTR2 14 NO

232 220KV Harangul 220/33KV LTR1 8 NO

233 220/33KV LTR2 8 Yes 8

234 132KV Udgir 26 NO

235 132KV Nilanga 31 NO

236 132KV Ujani-I 42 NO

237 132KV Ujani-II 29 NO

238 132KV Latur 132/33KV LTR1 7 NO

239 132/33KV LTR2 7 Yes 7

240 132/11KV LTR3 6 NO

241 132KV MIDC 5 NO

242 220KV Osmanabad

220/33KV (50MVA)LTR1 15 NO

243 220/33KV (50MVA)LTR2 15 Yes 15

244 220KV Parly Extn

Nil 0

124


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

245 132KV Harsool 132/33KV (50MVA)LTR1 17 NO

246 132/33KV (50MVA)LTR2 17 NO

247 132/11KV (25MVA)LTR3 6 NO

248 132/11KV (25MVA)LTR4 6 NO

249 132KV Chiklthn-A 27 NO

250 132KV Chiklthn-B 27 NO

251 132KV Sawangi 28 Yes 28

Amravati Zone

252 400KV Akola2 Nil

253 220KV Amravati 132/11KV (25MVA)LTR1 2 NO

254 132/11KV (25MVA)LTR2 2 Yes 2

255

132/11KV (12.5MVA)LTR3

3 NO

256 132/66KV (25MVA)LTR4 12 NO

257 132/66KV (25MVA)LTR5 12 NO

258 132KV Chandurbazar 24 Yes 24

259 132KV Morshi 26 NO

260 132KV Tiosa 20 Yes 20

261 132KV Lalkhedi 53 NO

262 220KV Badnera TSS-1 11 NO

263 TSS-2 12 NO

264 220/33KV (25MVA)LTR1 14 NO

265 220/33KV (25 MVA)LTR2 9 Yes 9

266 132KV Paras 132KV Warwat Bakal 19 NO

267 132KV Patur 38 NO

268 132KV Akot 10 Yes 10

269 132/66KV (25MVA)LTR1 2 NO

270 220KV Pusad 220/66KV(50MVA) LTR1 22 NO

271 220/33KV(50MVA) LTR2 20 NO

272 220/33KV(25MVA) LTR3 21 Yes 21

125


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

273 132KV Umarkhed 69 Yes 69

274 132KV Gunj 15 NO

275 132KV Digras 50 NO

276 132KV Jambazar 13 Yes 13

277 220KV Akola 132/33KV (25MVA)LTR1 7 NO

278 132/33KV (25MVA)LTR2 14 yes 14

279 132KV Akola MIDC 19 NO

280 220KV Chikhali 132/33KV (50MVA)LTR1 12 NO

281 132/33KV (50MVA)LTR2 3 Yes 3

282 132KV Khamgaon 37 NO

283 132KV Buldhana 42 NO

284 132KV Dhad 4 Yes 4

285 132KV Dusarbid 17 Yes 17

286 132KV Mehkar 40 NO

287 220KV Dhamangaon

220/33KV(25MVA) LTR1 2 NO

288 220/33KV(25MVA) LTR2 2 NO

289 132KV Malkapur 132KV Bodwad 25 NO

290 132KV Khamgaon 27 NO

291 132KV Motala 31 Yes 31

292 132/11KV (10MVA)LTR1 2 NO

293 132/11KV (10MVA)LTR2 7 NO

294 132/33KV (50MVA)LTR3 12 NO

295 132/33KV (50MVA)LTR4 12 Yes 12

296 220KV Paras Extn

Nil 0

Karad Zone

New Koyna DC

297 400kv New Koyna

Nil

126


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

298 KDPH Nil

299 220KV Koyna 1 & 2

220/33KV(50MVA) LTR1 2 NO

300 220/33KV(50MVA) LTR2 2 NO

301 220KV Koyna3 220/33KV(25MVA) LTR1 6 NO

302 110/33KV(16MVA) LTR2 7 NO

303 110KV Ratnagiri 13 Yes 13

304 400KV Koyna 4 Nil

305 220KV Sawantwadi

220/33KV(50MVA) LTR1 12 NO

Karad DC

306 400KV Karad2 Nil 0

307 220KV Karad1 220/33KV(25MVA) LTR1 21 Yes 21

308 110/33KV(25MVA) LTR1 21 Yes 21

309 110KV Kale 41 NO

310 110KV Tembu 25 NO

311 110KV Kirloskarwadi 17 NO

312 110KV Diganchi 12 NO

313 110KV Mayani 66 NO

314 110KV Atit 25 NO

315 220KV Lonnand 132KV VIR 35 NO

316 132kv Phaltan A 48 Yes 48

317 132kv Phaltan B 49 NO

318 132KV Wai 9 Yes 9

319 132KV Polychem 3 NO

320 132KV Satara road 35 NO

321 220KV Miraj 220/33KV(50MVA) LTR1 26 NO

322 220/33KV(50MVA) LTR2 30 NO

323 110KV Vishrambaug 1 31 NO

324 110KV Vishrambaug 2 33 NO

127


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

325 110KV Jaishingpur 37 NO

326 110KV Kurundwad 19 Yes 19

327 110KV Mahankal-2 22 NO

328 110KV Tasgaon 30 Yes 30

329 110/11KV(25MVA) LTR1 9 NO

330 110KV Mahankal-1 25 Yes 25

331 220KV Vita 220/33KV(50MVA) TR-1 13 NO

332 220/33KV(50MVA) TR-2 12 NO

333 220KV Ichalkaranji

220/33KV(50MVA) LTR-1

32 NO

334

220/33KV(50MVA) LTR-1

30 Yes 30

335 220KV Malharpeth

220/33KV(50MVA) LTR-1

10 NO

336

220/33KV(50MVA) LTR-2

21 NO

337 220KV Peth

220/33KV(50MVA) LTR-1

16 NO

338

220/33KV(50MVA) LTR-2

16 NO

339 132KV Walegaon 7 NO

340 132KV Shirala 34 Yes 34

Kolhapur DC 0 NO

341 400KV Kolhapur 220KV Chikodi 0 NO

342 220KV Kolhapur 220KV Chikodi 0 NO

343 220/33KV (50MVA)LTR1 18 NO

344 220/33KV (50MVA)LTR2 20 Yes 20

345 110KV Kothali 10 NO

346 110KV Puikadi 26 NO

347 110KV Ichalkaranji 62 NO

348 110KV Shirgaon 44 Yes 44

128


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

349 110KV D'ganga 7 NO

350 110KV B-Camp1 13 NO

351 110KV B-Camp2 15 NO

352 220KV Tillari Nil

353 220KV Halkarni 220/33KV (25MVA)LTR1 7 NO

354 220/33KV (25MVA)LTR2 5 Yes 5

355 220KV Mumewadi

220/33KV (25MVA)LTR1 4 NO

356 220/33KV (25MVA)LTR2 8 Yes 8

357 220/33KV (50MVA)LTR3 8 Yes 8

358 220KV Kharepatan

220/33KV (25MVA)LTR1 8 NO

359 132KV Talebazar 6 NO

360 132KV Kankawali 31 Yes 31

361 110KV Shiroli 110KV Wathar 44 NO

362 110/33KV (25MVA)LTR1 12 Yes 12

363 110/11KV (16MVA)LTR2 7 NO

364 110/11KV (16MVA)LTR3 9 NO

Nagpur Zone

365 220KV Ambazari 132KV Arvi 27 Yes 27

366 132KV Pardi 49 NO

367 132KV Hingna-II 50 NO

368 132/11KV (25MVA)LTR1 12 NO

369 132/11KV (25MVA)LTR2 12 Yes 12

370 132KV Mankapur-I 59 NO

371 132KV Mankapur-II 40 NO

372 132KV Hingna-I 54 NO

373 220KV Bhandara 132/11KV (16MVA)LTR1 4 NO

374 132/33KV (25MVA)LTR2 3 Yes 3

375 132KV Ambora-I 7 NO

129


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

376 132KV Mouda 20 NO

377 132KV Kardha 30 NO

378 132KV Madgi-I 9 NO

379 132KV Madgi-II 9 NO

380 132KV Tekepar 24 Yes 24

381 132KV Kanhan 12 NO

382 400KV Chandrapur

220/66KV LTR3 (50MVA) 12 NO

383 220KV Kalmeshwar

132/11KV(25MVA)LTR1 5 NO

384 132/11KV(16MVA)LTR2 4 NO

385 132/33KV(50MVA)LTR3 7 Yes 7

386 132KV Saoner 12 Yes 12

387 132KV Katol 34 NO

388 220KV Kanhan 132/11KV (25MVA)LTR1 2 NO

389 132/11KV (25MVA)LTR2 7 Yes 7

390 132/33KV (25MVA)LTR3 9 NO

391 132/33KV (25MVA)LTR4 9 Yes 9

392 132KV Mauda 20 NO

393 132KV Pardi 30 NO

394 132KV Uppalwadi 15 NO

395 400KV Koradi Nil 0

396 220KV Wardha 220/66KV(50MVA) LTR1 12 NO

397 220/66KV(50MVA) LTR2 14 Yes 14

398 220kv Warora 220/33KV(50MVA) LTR1 14 NO

399 220/33KV(50MVA) LTR2 14 NO

400 220/66KV(50MVA) LTR1 31 NO

401 220/66KV(50MVA) LTR2 31 Yes 31

402 220KV Bhugaon 132KV Deoli 37 Yes 37

403 220/33KV (25MVA)LTR1 10 NO

130


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

404 220KV Hinganghat


405 132/33KV(25MVA)LTR2 10 Yes 10

406 220KV Purti Nil 0 0

407 220KV Butibori 220/33KV(50MVA)LTR1 20 NO

408 220/33KV(50MVA)LTR2 17 NO

409 220/33KV(50MVA)LTR3 22 Yes 22

410 132KV Khapri-1 21 NO

411 132KV Khapri-2 21 NO

412 220KV Ghadchandur

220/66KV LTR1 43 NO

413 220/66KV LTR2 46 Yes 46

414 220/33KV LTR1 2 NO

415 220KV Khaparkheda

Nil 0

Nasik Zone

Nasik DC 0 NO

416 220KV Nasik GCR

132KV Ambad 54 NO

417 132KV Jindal 26 NO

418 132KV Sinnar 35 NO

419 132KV Ranwad 58 NO

420 132KV Ozar-A 31 NO

421 132KV Ozar-B 34 NO

422 132KV Pachpatta 37 NO

423 220KV Ahmadnagar

220/33KV (25MVA)LTR1 3 Yes 3

424 220/33KV (25MVA)LTR2 2 NO

425 132KV Kedgaon 40 NO

426 132KV Ashti 31 Yes 31

131


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

427 400KV Babhaleshwar

Nil 0

428 400KV Vaitarna Nil 0

429 132KV Nasik OCR

132KV Takli 47 NO

430 132KV Satpur 52 NO

431 132KV Railway 1 18 NO

432 132KV Railway 2 18 NO

433 132KV Sinner MIDC 46 NO

434 132/33KV (50MVA)LTR 1 38 Yes 38

435 132/33KV (50MVA)LTR 2 38 Yes 38

436

132/6.6KV Station Transformer

2 NO

437 132KV Bhandardara

Nil 0

438 220KV Malegaon


439 220/33KV(50MVA)LTR2 29 Yes 29

440 132KV Nampur 19 Yes 19

441 132KV Malegaon-1 17 NO



444 132KV Nandurbar

132KV Visarwadi 28 NO

445 132/33KV (25MVA)LTR1 7 NO

446 132/33KV (25MVA)LTR2 7 NO

447 132/11KV (16MVA)LTR3 4 NO

448 220kv Valve 220/33KV LTR1 56 NO

449 220/33KV LTR2 43 NO

450 220KV 132KV Ambad 44 NO

132


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

Raymonds

451 132KV Adgaon 32 Yes 32

452 132KV Igatpuri 58 NO

453 132KV Jindal 21 NO

454 220KV Satana 132KV Kalwan 40 Yes 40

455 132KV Taharabad 0 NO

456 132/33KV LTR1(50 MVA) 12 Yes 12

457 132/33KV LTR2 12 NO

458 132/11KV LTR1 10 NO

Dhule DC

459 400kv Dhule2 Nil

460 132KV Bhusawal 132KV Nimbhora 11 Yes 11

461 132KV Pahur 45 NO

462 132KV Yawal 31 Yes 31

463 132KV Jalgaon-1 54 NO

464 132KV Jalgaon-2 0 NO

465 132KV Muktainagar 14 NO

466 132/33KV (25MVA)LTR1 7 NO

467 132/33KV (25MVA)LTR2 8 Yes 8

468 132/11KV (10MVA)LTR3 7 NO

469 400kv Bhusawal2

Nil

470 220KV Chalisgaon

132KV Kannad 26 Yes 26

471 132KV Chalisgaon-1 21 NO

472 132KV Chalisgaon-2 21 NO

473 132KV Dhule City 53 Yes 53

474 132KV Pimparkhed 34 NO

475 132KV Amalner 132/33KV LTR1(50 MVA) 10 NO

476 132/33KV LTR2(50 MVA) 15 Yes 15

133


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

477 132/11KV LTR1(50MVA) 7 NO

478 220KV Dhule-1 132KV Dhule City 51 Yes 51

479 132KV Nardhane 76 NO

480 220/33KV (25MVA)LTR1 8 NO

481 220/33KV (25MVA)LTR2 7 NO

482 220KV Dondaicha

132KV Dondaicha 53 NO

483 220/33KV LTR1 7 NO

484 132KV Sakari 132/33KV( 50MVA) LTR1 13 NO

485 132/33KV( 50MVA) LTR2 13 NO

486 132/33KV( 50MVA) LTR3 13 NO

487

132/11KV( 12.5MVA) LTR1

2 NO

488 132/11KV( 16MVA) LTR2 2 NO

489 220KV Shahada 132KV Taloja 26 Yes 26

490 132/33KV (50MVA)LTR1 16 NO

491 132/33KV (50MVA)LTR2 8 NO

492 132/11KV (16MVA)LTR1 6 NO

493 132/11KV (10MVA)LTR2 5 NO

494 132KV Supa 132KV Shirur 15 NO

495 132/33KV(25MVA)LTR1 14 NO

496 132/33KV(25MVA)LTR2 10 NO

497 132KV Pachora 132KV Pahur 26 Yes 26

498 132/33KV (50MVA)LTR1 13 NO

499 132/33KV (50MVA)LTR2 13 Yes 13

500

132/25KV (10.8MVA)LTR1

8 NO

501

132/25KV (10.8MVA)LTR2

8 NO

502 132/11KV (10MVA)LTR1 3 NO

134


Sr.No.


ge Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC 95%

Line Loading

SIL

Flow 1

above TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

503 132/11KV (10MVA)LTR2 3 NO

504 132KV Pathardi 132KV Shevgon 15 Yes 15

505 132KV Beed 2 NO

506 132/33KV (50MVA)LTR1 13 Yes 13

507 132/33KV (50MVA)LTR2 7 NO

508 132/11KV (16MVA)LTR1 5 NO

509 132KV Manmad 132KV Lasalgaon 19 NO

510 132KV Yeola 14 Yes 14

511 132KV Ozar 6 NO

512 132KV Pimperkhed 24 NO

513 132/33KV(50MVA)LTR1 14 Yes 14

514 132/33KV(25MVA)LTR2 7 NO

515 132/11KV(16MVA)LTR1 7 NO

516 132/11KV(10MVA)LTR2 7 NO

135

MADHYA PRADESH Load Shed Scheme Annexure-3.F

Sr. No.

S/s Name Feeder Average

Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC

95%

Line Loading SIL

Flow 1

above

TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

Sagar MW

Noa Available / To be

implemented

1 220KV S/s Sagar 132KV Gourjhamer

15 No No Yes Yes No No Yes No

Satna

No Yes Yes No No No Yes Yes

2 220 KV BIRSINGHPUR 132 KV UMARIYA 16 Yes Yes Yes No Yes Yes No No

3 220 KV SATNA 132 KV MAJHGAWAN 9 No No Yes Yes No No Yes No

4 220 KV SATNA 132 KV PAWAI 11 Yes Yes Yes No Yes Yes No No

5 220 KV SATNA 132 KV PANNA 34

6 220 KV REWA 132 KV MANGAWAN +Katra 39

7 220 KV SIDHI 132 KV MAUGANJ 18

400KV Bhopal

8 132 KV S/S VIDISHA

132 KV GAIRATGANJ

15

9 133 KV S/S VIDISHA

132 KV Shamshabad

6

Gwalior

10 220 KV Malanpur

132 KV Ambah 20

11 220 KV Mehgaon

132 KV Porsa 12

12 220 KV Mehgaon

132 KV Seonda 19

13 220 KV 132 KV Lahar+ Ron 24

136


Sr. No.


Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC

95%

Line Loading SIL

Flow 1

above

TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

Mehgaon

Bhopal

14 220 KV S/S BAIRAGARH

132 KV SHYAMPUR 8

15 132 KV S/S BETUL

132 KV GUDGAON 9

16 220 KV S/S ASHTHA

132 KV ICHHAWAR 4


132 KV POLAI KALA 7


132 KV BERCHHA 5

Indore

19 220 KV S/s Julwaniya

132 KV Sendhwa+Pansemal

46

20 220 KV S/s Nimrani

132 KV Kasrawad 10

21 220KV S/S Rajgarh

132KV Petlawad 4

400KV Indore

22 220 KV S/s Pithampur

132 KV Bagdi 13


132 KV Betma 11


132 KV Jamli 28

400KV Khandwa

25 220 KV S/s Nepa

132 KV Badgaon 21

137


Sr. No.


Load


from SCADA

Tele Control

MW

150MW OD

Voltage < IEGC

95%

Line Loading SIL

Flow 1

above

TTC

Flow 2

above TTC

Sudden Loss of 1000

Angular Diff

Any Other

Ujjain

26 220KV S/S Barnagar

132KV Kanwan 20

27 220KV S/S Barnagar

132KV Gautampura 13

400KV Nagda

28 220 KV S/S Nagda

132KV Nagda - Alot

24

29 220KV S/S Neemuch

132KV Ratangarh 20

138

EXHIBIT 4

AUTOMATED DEFENCE PLAN FOR SOUTHERN REGION

139

Annexure-4.1 Automated defence plan summary for Southern Region- Andhra Pradesh system

S No

Logic Control Action Manual or Automatic Measurements as input



Remarks

SOU

THER

N R

EGIO

N-A

ND

HR

A P

RA

DESH

1

∆ P > 150 MW or 12 % of schedule whichever is less ∆ P = Actual-Schd and freq < 50 Hz

Shed load in AP Discoms. Identify three groups A, B, C each group constituting (approxi) 250 MW or 12 % of schedule. Rotation logic and sequence to be programmed at SLDC and RLDC PLCs

Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC after 15 minutes) Stage 3 : Backup (from SRLDC PLC after 20 minutes)


Wide Area: signal sent from LDC to 22 x 220 /132kV sub-stations in 3 groups, and have 9 nos 132 Kv radial feeders and 13x 33 kV loads would be identified .

Group A,B &C Feeders list (including All Discoms such as NPDCL,SPDCL,EPDCL and CPDCL) is enclosed at Annexure- 4.A PLC logic from SRLDC needs to be deigned

2

∆ P < -150 MW ∆ P = Actual-Schd and freq > 50 Hz

Send signal to All power stations in all Discoms. Logic and sequence to be programmed at SLDC and SRLDC PLC

Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC 15 minutes) Stage 3 : Backup (from SRLDC PLC in 25 minutes)


Wide Area: signal sent from LDCs to All power station in AP control area (generators above 200 MW).

The power stations can either wire the same for un it or generation reduction through secondary control. The following generators are Identified. Rayaseema unit 1-5, KTPS 9, 10, and 11, Simhadri unit 1 &2, VTPS-1-7 and kakatiya unit 1. Logic is to be designed from SLDC/SRLDC

3


Shed load at the 6 x 220 kV sub-stations.


Local area: Bus voltage Measurement at the 6 x 220 kV substations

Local area:

Under Voltage Load Shedding (UVLS). Six UVLS relays required one each at 220 kV sub-stations: Chittur, Palamaneru, Kalkiri, Renigunta, Kodur, Rajampet

4**


1.Shed/Trip Generation at Srisailem left bank plant

Stage-1: Manual (SLDC level) Stage-2: Automatic through PLC

Local area: 1. if 400kV Srisailem-Karnool SC line violates KLLCL.

Local Area :

Regional & state: Annexure-4.B

5


Shed loads identified Automatic

Local area: No. of measurements aggregated at SRLDC SCADA

Wide area: signal sent to identified stations: 110kV Salem, 110kv Deviakurchi, 110kV Rasipuram, and 110kV Pudanchndai.

Note:S1-S2 bid area SPS already agreed and implementation stage

140

6**


Shed loads in designated areas

Automatic Local area: measurement at Power station level/ substation level

Wide area: signal sent to many areas

Regional: Annexure-4.C SO

UTH

ERN

REG

ION

-AN

DH

RA

PR

AD

ESH

7


Shed load or back down generation

Automatic

Wide area: Synchrophasor measurements at RLDC/SLDC

Wide area: signal sent to identified stations

Annexure-4.D

8

UFR I: 49.0 Hz UFR 2: 48.8 Hz UFR3: 48.6 Hz

30% Simultaneous Maximum demand of SR-33037 MW(9911 MW) AP UFR is 35.6% of 9911 MW(Average ratio of energy ratio and peak demand ratio)


49.0 Hz: 13 substations: 801MW (during peak hours) 49.0 Hz: 17 substations: 798MW (during off peak hours) 48.8 Hz: 18 substations: 1123MW 48.6 Hz: 9 substations: 1327 MW presently the UFR setting on the above feeders are 48.8Hz,48.5Hz and 48.2 and it is proposed for change the setting as per the recommendation in forthcoming PCC /OCC metting The Details of feeders are encclosed at Annexure-4.E




About 1767 MW relief is connected. in 33kv feeder, 132 Kv feeders and 132/33 kv transformers. Presently Df/Dt setting is 49.3 Hz with 0.3Hz/seconds and it is proposed to change the setting as per the recommendation in forthcoming PCC /OCC meeting Annexure-4.E


Power stations, Loads Automatic Local area Local area Rayalaseema TPS, Simhadri, VTPS, KTPS islands (29 UFRs required say)

** Separate sheet for lines not associated with any state but trunk line. 1) Telemetery of all feeders a must. 2) Reset command from control centre for restoration 3) Ability to select any combination of sub-stations at LDC PLC 4) Detailed logic at PLC level; audit trail for change in logic by authorised users (5) Master server or PLCs for archiving, logs etc. (6) For UFR, UVLS station EL should be provided. Note:UFR relays for islanding has been considered as single relay. However for islanding it is prodent to consider 2 of 3 scheme with 2 separate frequency sources. BOQ may be appropriately changed(x3) in case this methodology is adopted

141

Annexure-4.2 Automated defence summary plan for Southern Region- Karnataka system

S No

Logic Control Action Manual or Automatic Measurements as input for control action (Local / Wide Area)


Remarks

SOU

THER

N R

EGIO

N-K

AR

NA

TAK

A

1

∆ P > 150 Mw or 12 % of schedule which ever is less ∆ P = Actual-Schd and freq < 50 Hz

Shed load in KAR system Identify three groups A, B, C each group constituting (approxi) 110 MW or 12 % of schedule. Rotation logic and sequence to be programmed at SLDC and RLDC PLCs



Wide Area: signal sent from LDC to 7x 66 kV sub-stations in 3 groups, and have 11nos 66 Kv radial feeders are identified .

Group A,B &C Feeders list is enclosed at Annexure- 4.A About 363MW the relief expected. PLC logic from SRLDC needs to be deigned

2


Send signal to All Thermal power stations Logic and sequence to be programmed at SLDC and SRLDC PLC



Wide Area: signal sent from LDCs to All power station in KARNATAKA control area (generators above (200 MW).

The power stations can either wire the same for un it or generation reduction through secondary control. The following generators are Identified., BTPS , RTPS, UPCL and Jindal , Logic is to be designed from SLDC/SRLDC

3





Local area:

Under Voltage Load Shedding (UVLS). Twenty one UVLS relays required one each at 220 kV sub-stations: Bidadi, Somanahalli, Subramnyapura, HSR layout Naganathpura, Hoody, Hebbal, Whitefield, HAL, Nelamangala, Peenya, D.B.Pura, Antharasanahally, Dobspet, Basthipura,Hootagalli, Tubinkere, AStation, EDC compound, Kunigal and Kadakola

4** ICT / line loading crossing normal operating limits

1.Back down/Trip Generation at BTPS/Jindal 2. Back down/Trip Generation at UPCL


Local area: 1.if Flow on 400kV Hiriyur-Nelamangala DC line exceeds KLLCL 2. if Flow on 400kV UPCL-Hassan DC line exceeds KLLCL

Wide Area: 1. Signal sent to identified stations:BTPS, Jindal Local area: 2.Signal sent to identified station: UPCL


142

5


Shed loads identified Automatic Local area: No. of measurements aggregated at SRLDC SCADA



SOU

THER

N R

EGIO

N-K

AR

NA

TAK

A

6**





Regional: Annexure-4.C

7



Automatic Wide area: Synchrophasor measurements at RLDC/SLDC


Annexure-4.D

8


30% Simultaneous Maximum demand of SR-33037 MW(9911 MW) KA UFR is 23.7% of 9911 MW(Average ratio of energy ratio and peak demand ratio)


49.0 Hz: 24 substations: 476MW 48.8 Hz: 24 substations: 667MW 48.6 Hz: 27 substations: 762MW presently the UFR setting on the above feeders are 48.8Hz,48.5Hz and 48.2 and it is proposed for change the setting as per the recommendation in forthcoming PCC /OCC meeting The Details of feeders are enclosed at Annexure-4.E




About 593MW relief is connected in 66 Kv and 110Kv feeders. Presently Df/Dt setting is 49.3 Hz with 0.3Hz/seconds and it is proposed for change the setting as per the recommendation in forthcoming PCC /OCC meeting Annexure-4.E


Power stations, Loads Automatic Local area Local area Kaiga, BTPS, RTPS, Varahi islands (30 UFRs required say)


143

Annexure-4.3 Automated defence summary plan for Southern Region- Kerala system

S No

Logic Control Action Manual or Automatic Measurements as input for control action (Local / Wide Area)


Remarks

SOU

THER

N R

EGIO

N-K

ERA

LA

1


Shed load in Kerala system Identify three groups A, B, C each group constituting (approxi) 75 MW or 12 % of schedule. Rotation logic and sequence to be programmed at SLDC and RLDC PLCs



Wide Area: signal sent from LDC to 8 x 220 /110kV sub-stations in 3 groups, and have 8 nos 110 Kv and one 66 KV radial feeders are identified .

Group A,B &C Feeders list is enclosed at Annexure- 4.A About 252 MW during peak hours and 125 MW during off peak hours the relief expected. PLC logic from SRLDC needs to be deigned

2


Send signal to All Hydro power stations Logic and sequence to be programmed at SLDC and SRLDC PLC



Wide Area: signal sent from LDCs to All power station in kerala control area (generators above (50 MW).

The power stations can either wire the same for un it or generation reduction through secondary control. The following generators are Identified.,IDUKKI Logic is to be designed from SLDC/SRLDC

3


Shed load at the 14x 220 kV sub-stations identified.



Local area:

Under Voltage Load Shedding (UVLS). Fourteen(14) UVLS relays to be installed at 220kV substations: Kalamassery, Palakkad, Madakathara, Areakode, Kaniyampet, Shornur, Malaparamba, Vadakara, Kanjirode, Talaparamba, Kasarkode, Phothenkode, Edappan, Kundara

4**




Local area: 1.if Flow on 220kV Idukki-LP-Madakathara DC line exceeds KLLCL or 400kV Udumalpet-Palakkad DC line flow exceeds KLLCL or Madakathara ICT flow exceeds 280 MW

Wide Area: Signal sent to identified stations: Madakathara, Palakkad, Malaparamba

Note: SPS at Madakathara:In case of tripping one of ICTs or 220kV Idukki-LP-Madakathara trips and other ICT flow is more than rated capacity or flow on 220kv lines >180 MW then trip 250 MW at Madakathara, Palakkad and Areakode.


5





6**






144

7





Annexure-4.D SO

UTH

ERN

REG

ION

-KER

ALA

8


30% Simultaneous Maximum demand of SR-33037 MW(9911 MW) Kerala UFR is 8.6% of 9911 MW(Average ratio of energy ratio and peak demand ratio)


49.0 Hz: 3 substations: 186MW (during peak hours) 49.0 Hz: 3 substations: 95MW (during off peak hours) 48.8 Hz: 3 substations: 198MW (during peak hours) 48.8 Hz: 3 substations: 123MW (during off peak hours) 48.6 Hz: 5 substations: 439MW (during peak hours) 48.6 Hz: 5 substations: 283MW (during off peak hours) presently the UFR setting on the above feeders are 48.8Hz,48.5Hz and 48.2 and it is proposed for change the setting as per the recommendation in forthcoming PCC /OCC meeting The Details of feeders are enclosed at Annexure-4.E




About 175 Mw during peak hours and 121 Mw during off peak hours relief is connected in 66kv feeder, and 110Kv feeders. Presently Df/Dt setting is 49.3 Hz with 0.3Hz/seconds and it is proposed for change the setting as per the recommendation in forthcoming PCC /OCC meeting Annexure-4.E


Power stations, loads Automatic Local area Local area Kayamkulam &Sabarigiri, Idukki&LP island(15UFRs required say)

** Separate sheet for lines not associated with any state but trunk line. 1) Telemetery of all feeders a must. 2) Reset command from control centre for restoration 3) Ability to select any combination of sub-stations at LDC PLC 4) Detailed logic at PLC level; audit trail for change in logic by authorised users (5) Master server or PLCs for archiving, logs etc. (6) For UFR, UVLS station EL should be provided. Note: UFR relays for islanding has been considered as single relay. However for islanding it is prodent to consider 2 of 3 scheme with 2 separate frequency sources. BOQ may be appropriately changed(x3) in case this methodology is adopted

145

Annexure-4.4 Automated defence plan summary for Southern Region- Pondycherry system

S No

Logic Control Action Manual or Automatic Measurements as input for control action (Local

/ Wide Area)


Remarks

SOU

THER

N R

EGIO

N-P

ON

DY

CH

ERR

Y

1 ∆ P > 50 Mw or 12 % of schedule which ever is less ∆ P = Actual-Schd and freq < 50 Hz

Shed load in Pondy system to be Identified three groups A, B, C Rotation logic and sequence to be programmed at SLDC and RLDC PLCs



Wide Area: Signal sent from LDC and radial feeders are yet to be identified .

Group A,B &C Feeders list to be submiited by pondy PLC logic from SLDC / SRLDC needs to be deigned

8 UFR I: 49.0 Hz UFR 2: 48.8 Hz UFR3: 48.6 Hz


Automatic Local Area Local area: 49.0 Hz: 3 substations: 22 MW 48.8 Hz: 3 substations: 34 MW 48.6 Hz: 27 substations: 36MW presently the UFR setting on the above feeders are 48.8Hz,48.5Hz and 48.2 and it is proposed for change the setting as per the recommendation in forthcoming PCC /OCC meeting The Details of feeders are enclosed at Annexure-4.E


Designated feeder in Pondy control area

Automatic Local area Local area Df/Dt relay connected feeders yet to be received from pondy .

146

Annexure-4.5 Automated defence plan summary for Southern Region -TamilNadu system

S No

Logic Control Action Manual or Automatic Measurements as input



Remarks

SOU

THER

N R

EGIO

N-TA

MILN

AD

U

1


Shed load in TN system Identified three groups A, B, C each group constituting (approxi) 200 MW or 12 % of schedule. Rotation logic and sequence to be programmed at SLDC and RLDC PLCs



Wide Area: signal sent from LDC to 23x 110 kV sub-stations in 3 groups, and have 26 nos 110 Kv radial feeders are identified .

Group A,B &C Feeders list is enclosed at Annexure- 4.A About 647 MW the relief expected. PLC logic from SRLDC needs to be deigned

2


Send signal to All Thermal power stations Logic and sequence to be programmed at SLDC and SRLDC PLC



Wide Area: Signal sent from LDCs to All power station in TN control area (generators above (200 MW).

The power stations can either wire the same for un it or generation reduction through secondary control. The following generators are Identified., NCTPS , MTPS, TTPS, Logic is to be designed from SLDC/SRLDC

3




Local area:Bus voltage Measurement at the 22x 220 kV substations

Local area:

Under Voltage Load Shedding (UVLS). Twenty two UVLS relays required one each at 220 kV sub-stations: Siruseri, KITS Park, SPKoil, Sriperumbudur, Gummidipoondi, Koratur, Koyambedu, Kadaperi, Mamambankam ,Taramani, Almatti, Manali, Oragadam, Kil Pauk, Todiyarpet, Mylapore , Perumbalur, Tanjavur, Samayapuram, Ponnapuram,Palladam, udumalpet

4**


Shed/Trip Wind Generation at Kayathar, Veerannam, Sanganeri, Udayathur and SR Pudur.


Local area: if Flow on any of Tirunelvelli ICT exceeds 280 MW or if Flow on 230kV line connected to tirunelvelli exceeds KLLCL

Wide Area: signal sent to identified stations: Kayathar, Veerannam, Sanganeri, Udayathur and SR Pudur.






147

6**


Shed loads in designated areas Automatic Local area: measurement at Power station level/ substation level



SOU

THER

N R

EGIO

N-TA

MILN

AD

U

7





Annexure-4.D

8




49.0 Hz: 24 substations: 798MW 48.8 Hz: 29 substations: 1036MW 48.6 Hz: 15 substations: 1180MW Presently the UFR setting on the above feeders are 48.8Hz,48.5Hz and 48.2 and it is proposed for change the setting as per the recommendation in forthcoming PCC /OCC meeting. The Details of feeders are enclosed at Annexure-4.E




About 559MW relief is connected in 110Kv feeders. Presently Df/Dt setting is 49.3 Hz with 0.3Hz/seconds and it is proposed for change the setting as per the recommendation in forthcoming PCC /OCC meeting Annexure-4.E


Power stations, Loads Automatic Local area Local area TTPS &Hydro, MTPS, Neyveli TPS, Kundah Complex& PUSHEP islands (35 UFRs required say)


148

Annexure 4.A- Feeders list for Remote tripping

APTRANSCO

List of 132 kV Radial Feeders and 132/33 kV Transformers for Remote Tripping from SLDC

Sl.No. Name of the Station Name of the feeder Type of feeder Load

GROUP A

1 220 KV Tandur 132 KV Pargi + Dhamasagar Radial 50

2 220 KV AP Carbides 132 KV Gadwal Radial 50

3 220 KV AP Carbides 132 KV Alampur Radial 25

4 220 KV Jagityal 132/33 KV Dharmapuri Radial 25

5 220 KVNirmal 132/33 KV Transformers (Local) 33 KV loads 20

6 220 KV Garividi 132/33 KV Transformers (Local) 33 KV Loads 30

7 220 KV Nellore 132/33 KV Atmakur Radial 30

8 220 KV Renigunta 132/33 KV Transformers(Local) 33 KV Loads 25

GROUP B

1 220 KV Narket Pally 132 KV Ramanapet01 Radial 30

2 220 KV Narket Pally 132 KV Ramanapet-2 Radial 30

3 220 KV Bhongir 132/33 KV Transformer (Local) 33 KV loads 35

4 220 KV Kalwakurthy 132/33 KV Transformers (Local) 33 KV Loads 85

5 220 KV Durshed 132/33 KV Transformers (Local) 33 KV Loads 20

6 220 KV Dichpally 132/33 KV Transformers (Local) 33 KV Loads 20

7 220 KV Markapur 132/33 KV Transformers (Local) 33 KV Loads 15

8 220 KV Rajampata 132/33 KV Transformers (Local) 33 KV Loads 25

GROUP C

1 220 KV Siddipet 132 KV Habsipur Radial 40

2 220 KV Ananthapur 132/33 KV Transformers (Local) 33 KV Loads 75

3 220 KV Waddekothapally 132/33 KV Padanagaram Radial 30

4 220 KV Bhimadole 132/33 KV Transformers (Local) 33 KV Loads 30

5 220 KV Chittoor 132/33 KV Transformers (Local) 33 KV Loads 50

6 220 KV Bommur 132/33 KV Transformers (Local) 33 KV Loads 60

149

Annexure 4.A - Feeders list for Remote tripping

TAMILNADU

110 KV Automatic Load disconnection scheme under regulatory measure

Sl.No. Name of 110 KV Feeder Load in MW

GROUP A

1 110 KV Ami-Kannamangalam 20

2 110 KV Mosur - Thiruthani 30

4 110 KV Pudukkottai - Adhanakottai 32

5 110 KV Sembatty - Dindugal # 24

6 110KV Ssamayapuram - KKPM #1 10

7 110 KV Thudiyalur - Arasur #1 50

8 110 KV Salem - Rasipuram 15

9 110 KV Gobi - Kolapalur SS 7

10 110 KV Hosur - Udhanapally 5

11 110 KV Arasur GE 16

GROUP B

1 110 KV Ami - Sandhavasal 23

2 110 KV Mosur - Sali 56

3 110 KV Perambalur - Thuralyur 30

4 110 KV Kodikuruchi - Veerasigamani 20

5 110 KV Kavanoor - Paramakudi # 20

6 110 KV Palladam - Sandhaipettai 35

7 110 KV Kariyamangalam - Vellichandhai 30

GROUP C

1 110 KV Cuddalore - Capperhills 12

2 110 KV Villupuram - Devikuruchi 12

3 110 KVPugalur - Kabilarmalai 32

4 110 KV Kodikuruchi - Veerasigamani 20

5 110 KV .K. Mandapam - Thudiyalur #1 50

6 110 KV Pudhanchandhal - Rasipuram 30

7 110 KV Kariamangalam - Dharmapuri 17

8 110 kV Kariamangalam - Kariamangalam 110 36

9 110 Kv Thiruvannamalai-kanchi 15

150

Annexure-4.A Feeders List for Remote tripping

KARNATAKA

KAR FEEDERS TO BE TRIPPED AS REGULATORY MEASURES

Sl.No. Expected Relief

GROUP A

1 66 KV Smnhly - Kanakapura Feeders 1 &2 40

2 66KV D.B. Pur -Chkblpr Feeders 1 & 2 38

3 66 KV Tbnkre-Pandavpura Feeder 23

4 66 KV Mnrbad-Sokke Feeder 20

GROUP B

1 66 KV smnhly-Kumbalgodu Feeder 1 17

2 66 KV D.B. Pur-Devanahalli Feeders 1 & 2 25

3 66 JV Tbnkre-S.R. patna Feeder 22

4 100 VA Transformer @ Kusthagi 50

GROUP C

1 66 KV Bidadadi-Ramanagram Feeder 38

2 100 KV Narendra -M.K. Hubli Feeder 60

3 66 KV Tbnkre-Nagmangala Feeder 30

KSEB

Sl.NO. Sub-station Feeder Voltage

Load relief (MW)

Peak Off Peak

GROUP A

1 Mylatty 220 KV Mylatty-Kanjangad - Cheruvathur 110 KV 20 11

2 Madakkathara 400 KV Madakkathara-Cherpu 110 KV 24 9

3 Kanhirode 220 KV Mundayad #2 110 KV 30 16

GROUP B

1 Kaniampetta 220 KV Kaniampetta - Bathery - Kuthumunda 66 KV 15 7

2 Pothencode 220 KV Pothencode - Attingal 110 KV 39 18

3 Thaliparamba 220 kV Payyannur 110 KV 28 18

GROUP C

1 Kaniampetta 220KV Madakkathara - Valappad 110 KV 20 9

2 Pothencode 220 KV Mundayad #1 110 KV 30 16

3 Nallalam 220 KV Chelari - Kizhissery 110 KV 46 21

151

Annexure 4.B-Key Line/ICT loading crossing normal operating limits

Sr. No

Transmission line Existing/ Already Proposed SPS (A) Modified SPS (B)

1 400kV Vijayawada-Nellore DC line

Back down generation of 430 MW at Vemagiri complex if flow on each line >550 and one of the line Trips.

To be modified to include KLLCL in addition to (A).

2 400kV Nellore-Almatti DC line

Trip one unit of Simhapuri and Meenakshi each if flow on each line >550 and one of the line Trips.


3 400kV Srisailem-Karnool SC line

- It is proposed to trip one unit at Srisailem left bank station if KLLCL violates.

4 400kV Khammam-Nagarjunasagar(Tallapalli)

-

It is proposed to Backdown generation at KTPS Unit-11if KLLCL violates (or trip Unit-9&10 after commissioning of ICT at KTPS).

5 400kV Gooty-Somanahalli SC line and 400kV Gooty-Nelamangala SC line

-

It is proposed to trip loads of about 300-400 MW in Bangalore area if KLLCL violates.

6 400kV RTPS-Gooty DC line - It is required at the time of SR-NEW Grid synchronization.

7 400kV Hiriyur-Nelamangala DC line

One of the line trips and if other line current flow is 1150< I <1450 A then trip Jindal one unit (300 MW). Else if other line current flow is I >1450 A then trip BTPS one unit (500MW).


8 400kV UPCL – Hassan DC line

- It is proposed to Backdown generation at UPCL if KLLCL violates.

9 220kV Idukki-Lower Periyar-Madakathara DC line , 400/220kV ICTs

In case of tripping one of ICTs or 220kV Idukki-LP-Madakathara trips and other ICT flow is more than rated capacity or flow on 220kv lines >180 MW then trip 250 MW at Madakathara, Palakkad and Areakode

To be modified to include KLLCL of 400kV Udumalpet-Palakkad DC line in addition to (A).

10 400kV Somanahalli-Salem SC line and 400kV Hosur-Salem SC line

Shed loads of 300 MW at Salem if flow on one of line >550 MW and one of the line trips.


11 400/230kV Tirunelvelli ICTs -

Flow on any ICT exceeds 280 MW, trip wind generation farms at Kayathar, Veerannam, Sanganeri, Udayathur and SR Pudur.

12

230kV Tirunelvelli-Kayathar, 230kV Tirunelvelli-Udayathur, 230kV Tirunelvelli- Saganeri, 230kV Tirunelvelli-Veerannam

-

Flow on 230kV Tirunelvelli-Kayathar, 230kV Tirunelvelli-Udayathur, 230kV Tirunelvelli- Saganeri, 230kV Tirunelvelli-Veerannam exceeds KLLCL, trip wind generation farms at Kayathar, Veerannam, Sanganeri, Udayathur and SR Pudur.

152

Annxure 4.C- Sudden loss of generation>1000 MW or loss of high capacity corridor

Sr. No. 6: Sudden loss of generation>1000 MW or loss of high capacity corridor

Sr.

No.

Generation loss/ Loss High Capacity

Corridor

Defence Mechanism avialable

1 HVDC Talcher-Kolar Poles tripping SPS is available to Shed loads at designated stations: Table-1&2

2 Loss of Kudamkulam Units

(yet to be commissioned)

SPS will be made available with unit commissioning to Shed

loads at designated station:Table-1&2

Table-1: Trip Signal-1A

153

Annxure 4.C- Sudden loss of generation>1000 MW or loss of high capacity corridor

Table-2: Trip Signal-2

154

Annexure 4.D Angular difference exceeding cut off value

Sr. No. 7: Angular difference exceeding cut off value(COV)

Presently, the PMU’s at following locations are being commissioned.

i. 400kv Ramagundam SS

ii. 400kV Gazuwaka SS

iii. 400kV Vijayawada SS

iv. 400kV Gooty SS

v. 400kV Sriperumbudur SS

vi. 400kV Kolar

vii. 400kV Narendra SS

viii. 400kV Somanahalli SS

ix. 400kV Trichur SS

x. 400kV Tirunelvelli

(Demo project by M/s Kalkitech not considered).

The following schemes can be considered,

400kV Vijayawada-Sriperumbudur angle beyond COV-initiate Vijayawada-Nellore

SPS+import reduction at Gazuwaka HVDC by 100 MW (due to ER Grid Voltage issues)

and Load shedding at Chennai area.

400kV Ramagundam - Somanahalli angle beyond COV- initiate Generation back at NTPC

Ramagundam TPS/ run back at Chandrapur HVDC flow towards SR o be reduced.

400kV Somanahalli-Salem angle exceeds COV-initiate S1-S2 SPS scheme.

400kV Salem-Trichur angle exceeds COV-initiate SPS at Madakathara.

400kV Narendra-Somanahalli angle exceeds COV-initiate Gooty-Somanahalli SPS.

400kV Ramagundam - Tirunelvelli angle beyond COV- initiate Generation back at NTPC

Ramagundam TPS /run back at Chandrapur HVDC flow towards SR o be reduced.

400kV Gazuwaka - Tirunelvelli angle beyond COV- initiate Generation back at NTPC Simhadri TPS

+import reduction at Gazuwaka HVDC by 100 MW (due to ER Grid Voltage issues)

155

Annexure 4.E-UFR and df/dt settings

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

EXHIBIT 5

AUTOMATED DEFENCE PLAN FOR NORTH EASTERN REGION

173

Annexure 5.1- Automatic Defense Plan summary for North Eastern Region N

OR

TH EA

STERN

REG

ION

-AR

UN

AC

HA

L PR

AD

ESH

Arunachal Pradesh

Sl.

N

o

Logic Control Action Manual/Automatic

Measurements as Input for control

area (Local / Wide Area)


Remarks Action By

1

∆ P > 5 MW , ∆ P = Actual-Schd and freq < 50 Hz

Shed Load in Arunachal Pradesh. Rotate load-shedding in A,B,C,D groups of load. Rotation logic and sequence to be programmed at SLDC and NERLDC PLC. After shedding of any load, the following should be maintained : 1) Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular Difference (within cut-off value)

Stage 1 : Manual Stage 2 : Automatic (From SLDC PLC after 15 minutes) Stage 3 : Backup (from NERLDC PLC after 20 minutes)

Wide Area : Schedules & Drawal from Augmented SCADA system at LDCs

Wide Area: signal sent from LDC to identified sub-stations in 4 groups; each group having similar loads; 33 kV feeders would be identified at each substn.

Gr A : Ziro, Daporizo, Along (in any or all Substations)

NERLDC, CTU and SLDC, Arunachal

Pradesh

Gr B: Nirjuli (PG), Naharlagun (in any or all Substations)

Gr C: Khupi Substation

Gr D: Deomali Substation

At present there is no proper infrastructure in Aruncahal Pradesh SLDC

2

∆ P < 5 MW , ∆ P = Actual-Schd and freq > 50 Hz

Send signal to ISGS to reduce generation. Rotation logic and sequence to be programmed at NERLDC PLC. After reduction of generation, the following should be maintained : 1) Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular Difference (within cut-off value)

Stage 1 : Manual Stage 2 : Automatic (From NERLDC PLC after 15 minutes)

Wide Area : Schedules & Drawal from Augmented SCADA system at RLDC

Wide Area: signal sent from RLDC to appropriate ISGS

The power stations can wire for generation

reduction, if reqd., wire for unit tripping. RLDC would take necessary action to

revise schedule in appropriate ISGS.

NERLDC, CTU and SLDC, Arunachal

Pradesh

3 Voltage < 120 kV for 5 minutes

Shed load at the Nodes

Stage 1: Alarm (126 kV) Stage 2: Automatic (120 kV for more than 5 minutes) Stage 3: 112 kV for 30 seconds

Local area: Bus Voltage Measurements Wide Area: Bus Voltage Measurements at NERLDC Augmented SCADA

Wide Area : No UVLS required at present

NERPC to Finalize schemes

4 Transfomer-1 at Nirjuli crossing limits

Shed load in Itanagar 33 kV Feeders


Local area: Loading of Tranformer-1 at Nirjuli Wide area: Loading of Tranformer-1 at Nirjuli through Augmented SCADA

Wide Area : Signal sent from SLDC to Gr.B substations

CTU and SLDC, Arunachal Pradesh

174

Transfomer-2 at Nirjuli crossing limits

Shed load in Itanagar 33 kV Feeders


Local area: Loading of Tranformer-1 at Nirjuli Wide area: Loading of Tranformer-1 at Nirjuli through Augmented SCADA

Wide Area : Signal sent from SLDC to Gr.B substations

CTU and SLDC, Arunachal Pradesh N

OR

TH EA

STERN

REG

ION

-AR

UN

AC

HA

L PR

AD

ESH

5

Flows crossing TTC irrespective of frequency

Shed load in the feeders identified at S no 1 Group A, B,C and D in rotation

Automatic

Wide area: No. of measurements aggregated at NERLDC Augmented SCADA

Wide Area: Signal sent via wiring from NERLDC for load shedding

NERLDC and CTU

6 Loss of High Capacity corridors

Shed load in identified feeders Automatic Local area: Wide Area : Not required NERLDC and SLDC, Arunachal Pradesh

7


Shed load in the feeders identified as Group A, B, C, D in rotation

Automatic Wide Area :

Wide Area: Signal sent to all 132 kV and 220 kV substations

Angle pairs to be decided. NERLDC and SLDC, Arunachal Pradesh

8

UFR I: 49.0 Hz

Arunachal UFR requirement : 50 MW Automatic Local Area (pickup frequency = 49.0 Hz)

Local area : Stg-I = 10 MW,

7 Nos. UFRs required for Arunachal Pradesh

NERPC to Finalize schemes and change pickup / stage frequencies as given

UFR 2: 48.8 Hz Stg II = 15 MW,

UFR3: 48.6 Hz Stg III = 15 MW ; Balance 10 MW for survival of Islands

Wide Area: Activation / Deactivation of UFRs for near load-generation balance

9 Df/dt: 49.9 Hz plus 0.2 Hz/sec


Automatic Local Area Local Area Not required


Power stations , loads Automatic Local Area Local Area AGBPP islands with loads of Gr.D


175

Annexure 5.2- Automatic Defense Plan summary for North Eastern Region

NO

RTH

EASTER

N R

EGIO

N-A

SSAM

Assam

Sl. No.





Remarks Action By

1


Shed Load in Assam. Rotate load-shedding in A,B,C,D,E,F,G groups of load. Rotation logic and sequence to be programmed at SLDC and NERLDC PLC. After shedding of any load, the following should be maintained : 1) Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular Difference (within cut-off value)



Wide Area: signal sent from LDC to identified sub-stations in 7 groups; 33 kV feeders would be identified at each substn.

Gr A : Dhaligaon, Jogighopa, Barnagar, Rangia, Nalbari, Gossaigaon, Gauripur, (in any or all Substations)

NERLDC, CTU and SLDC, Assam

Gr B: Kahelipara, Narangi, Dispur, Chandrapur, Sarusajai, Baghjap and Amingaon, (in any or all Substations)

Gr C: Samguri, Sankardevnagar, Diphu (in any or all Substations)

Gr D: Depota, Rowta, Sipajhar, (in any or all Substations)

Gr E: Mariani, Jorhat, Bokakhat, Tinsukia, Dibrugarh, Nazira, Moran, Ledo, Golaghat , Bokajan, Sibsagar, Lakwa, Namrup (in any or all Substations)

Gr F : Panchgram, Pailapool, Srikona, Dullavcherra , Haflong, Umrangshoo, (in any or all Substations)

Gr G: Gohpur, North Lakhimpur, Dhemaji, Majuli (in any or all Substations)

2


Send signal to designated power stations A, B and C to reduce generation,. Rotation logic and sequence to be programmed at SLDC and NERLDC PLC. After reduction of generation, the following should be maintained : 1) Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular Difference (within cut-off value)



Wide Area: signal sent from LDCs to power stations in A,B and C

Stn A : Langpi HPS

NERLDC, CTU and SLDC, Assam

Stn B : Lakwa TPS

Stn C: Namrup TPS

The power stations can wire for generation reduction through secondary control, if reqd., wire for unit tripping.

176

3 Voltage < 120 kV for more than 5 min

Shed load at 132 kV Substations identified in Sl.No.1 above


Local area: No. of measurements aggregated at NERLDC Augmented SCADA


Under Voltage Load Shedding (UVLS). 2 Nos. UVLS relays required at 132 kV substations where Under-voltage phenomenon observed

NERLDC and SLDC, Assam

NO

RTH

EASTER

N R

EGIO

N-A

SSAM

4


Line loading limits to be maintained as per min.(Z3, SIL, Stability limit). Load to be shed in designated areas upon crossing limits


Local area:

Wide Area : Signal sent from SLDC to identified substations

Details of feeders given in annexure 5.A

SLDC, Assam

5


Shed load in the feeders identified at S no 1 Group A, B,C,D,E,F and G in rotation Automatic

Local area: No. of measurements aggregated at NERLDC Augmented SCADA


NERLDC and CTU

6 Loss of High Capacity corridors

Shed Load

Automatic

Details of feeders given in annexure 5.A


7


Shed load in the feeders identified as Group A, B, C, D,E,F,G in rotation Automatic Wide Area :

Wide Area: Signal sent to all 132 kV substations Angle pairs to be decided.


8

UFR I: 49.0 Hz

Assam UFR requirement : 240 MW Automatic Local Area (pickup frequency = 49.0 Hz)


45 Nos. UFRs required for Assam



UFR3: 48.6 Hz Stg III = 50 MW

UFR4: 48.4 Hz Stg IV = 50 MW ; Balance 80 MW for survival of Islands






Power stations , loads Automatic Local Area Local Area NTPS Islands (with NTPS and Nazira load), AGBPP islands (Tinsukia load)


177


NO

RTH

EASTER

N R

EGIO

N-M

AN

IPU

R

Manipur

Sl. No.





Remarks Action By

1


Shed Load in Manipur. Rotate load-shedding in A,B,C,D groups of load. Rotation logic and sequence to be programmed at SLDC and NERLDC

PLC. After shedding of any load, the following should be maintained : 1)

Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular

Difference (within cut-off value)


Wide Area : Schedules & Drawal from .Augmented SCADA system at LDCs

Wide Area: signal sent from LDC to identified sub-stations in 4 groups; 66kV or 33 kV feeders would be identified at each substn.

Gr.A : Yurembam,Karong,Yaingangpokpi (in any or all Substations)

NERLDC, CTU and SLDC, Manipur

Gr.B: Ningthoukong, Churachandpur, Kakching, Kongba (in any or all Substations)

Gr.C : Jiribam substation

Gr.D: Rengpang substation

At present there is no proper infrastructure in Manipur SLDC

2


Send signal to ISGS to reduce generation. Rotation logic and

sequence to be programmed at NERLDC PLC. After reduction of

generation, the following should be maintained : 1) Line loading (min. of

Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3)

Angular Difference (within cut-off value)




The power stations can wire for generation reduction , if reqd., wire for unit tripping. RLDC would take

necessary action to revise schedule in appropriate ISGS.

NERLDC, CTU and SLDC, Manipur





Wide Area : Signal sent from LDC to 132 kV Substations


NERLDC and SLDC, Manipur

178

4

Line loading of 132 kV Loktak-Ningthoukong S/C crossing line

Shed load in Gr. A and Gr. B as in Sl.No.1


Local area: Loading of132 kV Loktak-Ningthoukong S/C Wide area: Loading of 132 kV Loktak-Ningthoukong S/C through Augmented SCADA

Wide Area : Signal sent from SLDC to 132 kV Substations

SLDC, Manipur

NO

RTH

EASTER

N R

EGIO

N-M

AN

IPU

R

5


Shed load in the feeders identified at S no 1 Group A, B,C and D in rotation

Automatic



NERLDC and CTU

6

Loss of 132 kV Loktak-Imphal line

Shed load in Gr. A and Gr. B Automatic

Local Area : Measurement at 132 kV Loktak Substation through Augmented SCADA

Wide Area : Shed load in Gr. A and Gr. B


Loss of 132 kV Loktak-Ningthoukong

Shed load in Gr. A and Gr. B Automatic

Local Area : Measurement at 132 kV Loktak Substation through Augmented SCADA

Wide Area : Shed load in Gr. A and Gr. B


7


Shed load in the feeders identified as Group A, B, C, D in rotation

Automatic Wide Area : Wide Area: Signal sent to all 132 kVsubstations

Angle pairs to be decided. NERLDC and SLDC, Manipur

8

UFR I: 49.0 Hz

Manipur UFR requirement : 50 MW Automatic Local Area (pickup frequency = 49.0

Hz)


10 Nos. UFRs required for Manipur

NERPC to Finalize

schemes and change pickup

/ stage frequencies as

given








Power stations , loads Automatic Local Area Local Area Loktak Island (3 Nos. with multiple contacts) with loads in Gr.B above


179


NO

RTH

EASTER

N R

EGIO

N-M

EGH

ALA

YA

Meghalaya

Sl. No.





Remarks Action By

1


Shed Load in Meghalaya. Rotate load-shedding in A,B,C,D groups of load. Rotation logic and sequence

to be programmed at SLDC and NERLDC PLC. After shedding of any

load, the following should be maintained : 1) Line loading (min. of Z3, SIL and stability limit) ; 2)

Bus Voltages (within IEGC band) ; 3) Angular Difference (within cut-

off value)

Stage 1 : Manual Stage 2 : Automatic

(From SLDC PLC after 15 minutes) Stage 3 : Backup

(from NERLDC PLC after 20 minutes)

Wide Area : Schedules & Drawal from

Augmented SCADA system at LDCs

Wide Area: signal sent from LDC

to identified sub-stations

in 3 groups; 33 kV feeders would be identified at each

substn.

Gr A : Mawlai, Nongstoin, Cherrapunjee, Nangalbibra, Tura (Ronkhon), (in any or all Substations)

NERLDC, CTU and SLDC, Meghalaya

Gr B: Khleihriat, Lumshnong, Industrial customers at Lumshnong, (in any or all Substations)

Gr C: EPIP II, EPIP I, Mawngap, Industrial customers at EPIP I and EPIP II, (in any or all Substations)

Gr D: Umiam, NEHU, NEIGRIHMS (in any or all Substations)

2


Send signal to designated power stations A, B, C, D, E to reduce generation,. Rotation logic and sequence to be programmed at

SLDC and NERLDC PLC. After reduction of generation, the

following should be maintained : 1) Line loading (min. of Z3, SIL and

stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular


Stage 1 : Manual Stage 2 : Automatic

(From SLDC PLC after 15 minutes) Stage 3 : Backup

(from NERLDC PLC after 20 minutes)



Wide Area: signal sent from LDCs to power stations in

A,B and C

Stn A : Leshka HPS

NERLDC, CTU and SLDC, Meghalaya

Stn B : Umiam I HPS

Stn C : Umiam II HPS

Stn D : Umiam III HPS

Stn E : Umiam IV HPS








NERLDC and SLDC, Meghalaya

180

4

132 kV Killing - EPIP II S/C crossing line limit (min. of Z3, SIL and Stability limit)

Shed Load at Gr.C and if necessary, at Gr.A and Gr. D as in Sl.No.1


Local area: Loading of132 kV Killing - EPIP II S/C Wide area: Loading of 132 kV Killing - EPIP II S/C S/C through Augmented SCADA

Wide Area : Signal sent from SLDC 132 kV substations in Gr.C and Gr.A

SLDC, Meghalaya

NO

RTH

EASTER

N R

EGIO

N-M

EGH

ALA

YA

132 kV Umiam I - Mawlai S/C crossing line limit (min. of Z3, SIL and Stability limit)

Shed Load at Gr.A and Gr.D


Local area: Loading of132 kV Umiam I - Mawlai S/C Wide area: Loading of 132 kV Umiam I - Mawlai S/C through Augmented SCADA

Wide Area : Signal sent from SLDC to Gr.A and Gr.B substations

SLDC, Meghalaya

5


Shed load in the feeders identified at S no 1 Group A, B, C and D in rotation

Automatic



NERLDC and CTU

6

Loss of 132 kV Umiam I - Mawlai line or Umiam I - Umiam Line

Shed Load at Gr.A and Gr.D Automatic

Local Area : Measurement at 132 kV Mawlai Substation through Augmented SCADA

Wide Area : Shed Load at Gr.A and Gr.D


Loss of 132 kV Killing - EPIP II S/C

Shed load in Gr.C and Gr.B Automatic

Local Area : Line loading of 132 kV Killing - EPIP II S/C for one circuit outage through Augmented SCADA

Wide Area : Shed load in Gr.C and Gr.B


181

7


Shed load in the feeders identified as Group A, B, C and D in rotation

Automatic Wide Area : Wide Area: Signal sent to all 132 kVsubstations

Angle pairs to be decided. NERLDC and SLDC, Meghalaya

NO

RTH

EASTER

N R

EGIO

N-M

EGH

ALA

YA

8

UFR I: 49.0 Hz

Meghalaya UFR requirement : 60 MW

Automatic Local Area (pickup frequency = 49.0

Hz)


25 Nos. UFRs required for Meghalaya

NERPC to Finalize schemes and

change pickup / stage frequencies

as given








Power stations , loads Automatic Local Area Local Area

Island forming with Umiam St IV, Umiam St III, Umiam St I, Leshka Gneration and Mawlai & NEHU load


182


NO

RTH

EASTER

N R

EGIO

N-M

IZOR

AM

Mizoram

Sl. No.

Logic Control Action Manual/Automatic Measurements as Input for control area (Local /

Wide Area)


Area) Remarks Action By

1


Shed Load in Mizoram. Rotate load-shedding in A,B and C groups of load.

Rotation logic and sequence to be programmed at SLDC and NERLDC PLC.

After shedding of any load, the following should be maintained : 1)

Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular





Wide Area: signal sent

from LDC to identified sub-

stations in 3 groups; 33

kV feeders would be

identified at each substn.

Gr A : Luangmual Substation

NERLDC, CTU and SLDC, Mizoram

Gr B: Kolasib Substation

Gr C: Zimabawk, Serchip , Lunglei, Saitual (in any or all Substations)

At present there is no proper infrastructure in Mizoram SLDC

2


Send signal to ISGS to reduce generation. Rotation logic and

sequence to be programmed at NERLDC PLC. After reduction of

generation, the following should be maintained : 1) Line loading (min. of

Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3)

Angular Difference (within cut-off value)




The power stations can wire for

generation reduction , if reqd., wire for unit tripping. RLDC would take necessary action to revise schedule in

appropriate ISGS.

NERLDC, CTU and SLDC, Mizoram







NERLDC and SLDC, Mizoram

183

4


Shed load in designated feeders


Local Area: Wide Area: SLDC, Mizoram

NO

RTH

EASTER

N R

EGIO

N-M

IZOR

AM

5


Shed load in the feeders identified at S no 1 Group A, B and C in rotation

Automatic



NERLDC and CTU

6 Loss of High Capacity Corridor

Shed load in designated feeders Automatic NERLDC and SLDC, Mizoram

7


Shed load in the feeders identified as Group A , B and C in rotation


Wide Area: Signal sent to all 132 kVsubstations

Angle pairs to be decided.

NERLDC and SLDC, Mizoram

8

UFR I: 49.0 Hz

Mizoram UFR requirement : 25 MW Automatic Local Area (pickup frequency = 49.0 Hz)


6 Nos. UFRs required for Meghalaya

NERPC to Finalize schemes and change

pickup / stage frequencies as given


UFR3: 48.6 Hz

Stg III = 6 MW ; Balance 10 MW for survival of Islands



Designated feeder in each control area Automatic Local Area Local Area Not required


Power stations , loads Automatic Local Area Local Area

Presently formation of islands not considered and no sufficient generation in Mizoram control area


184

Annexure 5.6- Automatic Defence Plan summary for North Eastern Region

NO

RTH

EASTER

N R

EGIO

N-N

AG

ALA

ND

Nagaland

Sl. No.

Logic Control Action Manual/Automatic Measurements as

Input for control area (Local / Wide Area)



1


Shed Load in Nagaland. Rotate load-shedding in A, B and C groups of load. Rotation logic and sequence to be programmed at SLDC and NERLDC PLC. After shedding of any load, the following should be maintained : 1) Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular Difference (within cut-off value)



Wide Area: signal sent from LDC identified sub-stations in 2 groups; 33 kV feeders would be identified at each substn.

Gr A : Dimapur, Chumukedima, Ganeshnagar, Power house, Dairy Farm , Nito Farm (in any or all Substations)

NERLDC, CTU and SLDC, Nagaland

Gr B: Mokokchung, Zunheboto, Tuli, Nagnimora, Tizit, Mon (in any or all Substations)

Gr C: Kohima, Khipire, Tuensang, Meluri, Wokha (in any or all Substations)

At present there is no proper infrastructure in Nagaland SLDC

2


Send signal to ISGS to reduce generation. Rotation logic and sequence to be programmed at NERLDC PLC. After reduction of generation, the following should be maintained : 1) Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular Difference (within cut-off value)




The power stations can wire for generation reduction , if reqd., wire for unit tripping. RLDC would take necessary action to revise schedule in appropriate ISGS.

NERLDC, CTU and SLDC, Nagaland







NERLDC and SLDC, Nagaland

185

4

132 kV Dimapur (PG) - Dimapur S/C crossing line limit (min. of Z3, SIL and Stability limit)

Shed load at Gr. A substations as in Sl.No.1


Local area: Loading of 132 kV Dimapur (PG) - Dimapur S/C Wide area: Loading of 132 kV Dimapur (PG) - Dimapur S/C through Augmented SCADA

Wide Area : Signal sent from SLDC 132 kV substations in Gr.A, Gr.B and Gr.C

SLDC, Nagaland

NO

RTH

EASTER

N R

EGIO

N-N

AG

ALA

ND

5


Shed load in the feeders identified at S no 1 Group A, B and C in rotation

Automatic



NERLDC and CTU

6

Loss of 132 kV Dimapur(PG)-Dimapur line

Shed Load at Gr.A Automatic

Local Area : Measurement at 132 kV Dimapur(PG) Substation -

Wide Area : Shed Load at Gr.A


Loss of 220/132 kV, 100 MVA, Dimapur ICT

Shed load at Gr.A Automatic

Local Area : Measurement at 132 kV Dimapur(PG) Substation -

Wide Area : Shed Load at Gr.A


7


Shed load in the feeders identified as Group A and B in rotation



Angle pairs to be decided. NERLDC and SLDC, Nagaland

8

UFR I: 49.0 Hz

Nagaland UFR requirement : 35 MW

Automatic Local Area (pickup frequency = 49.0 Hz)


17 Nos. UFRs required for Nagaland

NERPC to Finalize

schemes and change

pickup / stage frequencies

as given


UFR3: 48.6 Hz







Power stations , loads Automatic Local Area Local Area Doyang Island with Mokokchung load (Gr.B)


186


NO

RTH

EASTER

N R

EGIO

N-TR

IPU

RA

Tripura

Sl. No.

Logic Control Action Manual/Automatic Measurements as

Input for control area (Local / Wide Area)



1


Shed Load in Tripura. Rotate load-shedding in A,B and C groups of load. Rotation logic and sequence to be programmed at SLDC and NERLDC PLC. After shedding of any load, the following should be maintained : 1) Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular Difference (within cut-off value)



Wide Area: signal sent from LDC to identified sub-stations in 2 groups; 33 kV feeders would be identified at each substn.

Gr A : Agartala (79 Tilla), Dhalabil, Kamalpur, Kailashohor, PK Bari, Dharmanagar (in any or all Substations)

NERLDC, CTU and SLDC, Tripura

Gr B: Budhjangnagar, Jirania, Teliamura, Ambassa (in any or all Substations)

Gr C: Udaipur, Amarpur, RabindraNagar, Bagafa, Gokul Nagar, Badarghat, Belonia, Sabroom, Satchand (in any or all Substations)

2


Send signal to designated power stations A, B, C to reduce generation,. Rotation logic and sequence to be programmed at SLDC and NERLDC PLC. After reduction of generation, the following should be maintained : 1) Line loading (min. of Z3, SIL and stability limit) ; 2) Bus Voltages (within IEGC band) ; 3) Angular Difference (within cut-off value)



Wide Area: signal sent from LDCs to power stations in A,B and C

Stn A : Gumti HPS

NERLDC, CTU and SLDC, Tripura

Stn B : Baramura Gas PP

Stn C: Rokhia TPS The power stations can wire for generation reduction through secondary control, if reqd., wire for unit tripping.







NERLDC and SLDC, Tripura

4

132 kV AGTPP- Agartala S/C crossing line limit (min. of Z3, SIL and Stability limit)

Shed Load at Gr.A and then at Gr.B substations as in Sl.No.1


Local area: Loading of 132 kV AGTPP- Agartala S/C Wide area: Loading of 132 kV AGTPP- Agartala S/C through Augmented SCADA

SLDC, Tripura

187

132 kV AGTPP-Kumarghat S/C crossing line limit (min. of Z3, SIL and Stability limit)

Reduce injection of Stns. A, B and C of Tripura as in Sl.No.2


Local area: Loading of 132 kV AGTPP-Kumarghat S/C Wide area: Loading of 132 kV AGTPP-Kumarghat S/C through Augmented SCADA

SLDC, Tripura

NO

RTH

EASTER

N R

EGIO

N-TR

IPU

RA

5


Load shedding to be done




NERLDC and CTU

6 Loss of High Capacity Corridor

Loss of High Capacity corridors Automatic NERLDC and SLDC, Tripura

7


Shed load in the feeders identified as Group A and B in rotation



Angle pairs to be decided. NERLDC and SLDC, Tripura

8

UFR I: 49.0 Hz

Tripura UFR requirement : 40 MW Automatic Local Area (pickup frequency = 49.0 Hz)


18 Nos. UFRs required for Tripura



UFR3: 48.6 Hz







Power stations , loads Automatic Local Area Local Area Rokhia Island (with loads of Gr.C), AGTPP Island (with Agartala Load)


188

Annex 5.A- Intra Regional - Line Loading crossing the normal operating limits, TTC violation, Loss of Gen/High capacity corridor N

ER- IN

TRA

-REG

ION

AL LIN

E LOA

DIN

G C

RO

SSING

THE LIM

ITS

Sl. No.

Logic Control Action Manual/Automatic Measurements as Input for control area (Local / Wide

Area)


Remarks Action By

4

Loading of 220 kV AGBPP-Mariani S/C crossing line limit (min. of Z3, SIL and Stability limit)

Reduce generation of AGBPP

Stage-1: Manual (AGBPP for generation reduction , SLDC

Assam for reduction of requisition)

Local Area : Loading of 220 kV AGBPP-Mariani S/C crossing limits

Local Area : Augmented SCADA system data ; Wide Area : Gr. E of Assam

The power stations can wire for generation reduction through secondary control, if reqd., wire for unit tripping..

NERLDC, CTU and SLDCs

Loading of 220 kV AGBPP-Misa S/C crossing line limit (min. of Z3, SIL and Stability limit)


Stage-1: Manual (AGBPP for generation reduction , SLDC

Assam for reduction of requisition)

Local Area : Loading of 220 kV AGBPP-Misa S/C crossing limits

Local Area : Augmented SCADA system data ; Wide Area : Gr. E of Assam


NERLDC,CTU and SLDCs

Line loading of 132 kV Loktak-Imphal S/C crossing line limit (min. of Z3, SIL and Stability limit)

Reduce generation of Loktak HEP


Line loading of 132 kV Loktak-Imphal S/C crossing limits

Local Area : Augmented SCADA system data

The power stations can wire for generation reduction through secondary control, if reqd., wire for unit tripping.For this, necessary amendments in clause 6.5.20 of IEGC are to be proposed.

NERLDC and SLDCs

Loading of 220 / 132 kV , 160 MVA Kopili ICT crossing limit

Reduce loads in southern part of NER Grid (South Assam (Gr.F of Assam), Mizoram, Tripura and if needed, Manipur) and Gr.B part of Meghalaya load fed from Khleihriat


Local Area : Loading of 220/132 kV, 160 MVA, Kopili ICT crossing limits

Wide Area : Signal sent from RLDC to SLDCs and further to importants substations

NERLDC and SLDCs

189

Loading of 132 kV Khandong-Khleihriat S/C crossing line limit (min. of Z3, SIL and Stability limit)

Reduce loads in Gr.B part of Meghalaya load fed from Khleihriat


Local Area : Loading of 132 kV Khandong-Khleihriat S/C crossing limits


NERLDC and SLDCs

NER

- INTR

A-R

EGIO

NA

L LINE LO

AD

ING

CR

OSSIN

G TH

E LIMITS

Loading of 132 kV Khleihriat - Badarpur S/C crossing line limit (min. of Z3, SIL and Stability limit)

Reduce loads in southern part of NER Grid (South Assam (Gr.F of Assam) , Mizoram, Tripura and if needed, Manipur)


Local Area : Loading of 132 kV Khleihriat - Badarpur S/C crossing limits


NERLDC and SLDCs

Loading of 132 kV Khandong - Haflong S/C crossing line limit (min. of Z3, SIL and Stability limit)

Reduce loads in southern part of NER Grid (South Assam (Gr.F of Assam), Mizoram, Tripura and if needed, Manipur)


Local Area : Loading of 132 kV Khandong - Haflong S/C crossing limits


NERLDC and SLDCs

Loading of 132 kV Dimapur - Imphal S/C crossing line limit (min. of Z3, SIL and Stability limit)

Reduce loads in southern part of NER Grid (South Assam(Gr.F of Assam), Mizoram, Tripura and if needed, Manipur)


Local Area : Loading of 132 kV Dimapur - Imphal S/C crossing limits


NERLDC and SLDCs

Line loading of 132 kV Loktak-Jiribam S/C crossing line limit (min. of Z3, SIL and Stability limit)

Back down generation of Loktak HPS or shed load in South Assam (Gr.F of Assam), Mizoram and Tripura


Local Area : Augmented SCADA system ;Wide Area : Signal sent from SLDC to 132 kV Substations



NERLDC and SLDCs

190

Loading of 132 kV Ranganadi-Nirjuli S/C line crossing limit (min. of Z3, SIL and Stability limit)

Shed load in Gr.A and Gr.B in Arunchal Pradesh and in Gr.G of Assam


Loading of 132 kV Ranganadi-Nirjuli S/C line crossing limits


NERLDC and SLDCs

NER

- INTR

A-R

EGIO

NA

L TTC V

IOLA

TION

/LOSS O

F GEN

Loading of 220 kV BTPS-Agia S/C line crossing limit (min. of Z3, SIL and Stability limit)

Shed load in all violating states of NER in proportion


Local Area : Loading of 400 kV NewSiliguri - Bongaigaon S/C crossing limits


NERLDC and SLDCs

5


Shed load in all violating states of NER in proportion

Automatic Wide Area: No. of measurements aggregated at NERLDC Augmented SCADA


NERLDC

6

Loss of High Capacity corridors

Loss of High Capacity corridors / Generation

Automatic

Loss of units of Ranganadi HPS

Shed load in all states of NER in proportion

Automatic Local Area: Measurement at 132 kV Ranganadi substation

Local Area: Proportionate load shedding in all states of NER as per GOI share

NERLDC and SLDCs

Loss of units of Loktak HPS

Shed Load in southern part of NER Grid (Manipur, South Assam, Mizoram, Tripura )

Automatic Local Area: Measurement at 132 kV Loktak substation

Local Area: Load shedding in southern part of NER Grid (Manipur, South Assam, Mizoram, Tripura)

NERLDC and SLDCs

Loss of units of AGBPP

Shed load in Gr.E of Assam system

Automatic Local Area: Measurement at 220 kV AGBPP substation

Wide Area: Load shedding in Gr.E of Assam system

NERLDC and SLDCs

Loss of units of AGTPP

Shed load in Tripura system

Automatic Local Area: Measurement at 132 kV AGTPP substation

Wide Area: Load shedding in entire Tripura system

NERLDC and SLDCs

191

Loss of 400 kV Bongaigaon - Balipara S/C line


Automatic Local Area : Measurement at 400 kV Bongaigaon Substation -

Wide Area: Load shedding entire NER system

NERLDC and SLDCs

NER

- INTR

A-R

EGIO

NA

L LOSS O

F HIG

H C

AP

AC

ITY C

OR

RID

OR

Loss of 400 kV NewSiliguri - Bongaigaon S/C line


Automatic Local Area : Measurement at 400 kV Bongaigaon Substation -

Wide Area: Load shedding entire NER system

NERLDC and SLDCs

Loss of 220/132 kV , 160 MVA ICT at Kopili

Shed Load in southern part of NER Grid (South Assam, Mizoram, Tripura and ,if needed, Manipur system) and Gr.B part of Meghalaya load fed from Khleihriat

Automatic Local Area : Measurement at 132 kV Kopili Substation -

Wide Area: Load shedding in southern part of NER Grid (South Assam, Mizoram, Tripura and if needed, Manipur) and Gr.B part of Meghalaya load fed from Khleihriat

NERLDC and SLDCs

Loss of 220 kV Misa - Mariani Line


Automatic Local Area : Measurement at 220 kV Mariani Substation -


NERLDC and SLDCs

Loss of 132 kV Khandong-Khleihriat S/C crossing line

Shed Load in Gr.B part of Meghalaya load

Automatic Local Area : Measurement at 220 kV Khleihriat Substation

Wide Area: Load shedding in Gr.B part of Meghalaya load fed from Khleihriat

NERLDC and SLDCs

Loss of 132 kV Khleihriat - Badarpur S/C line

Shed Load in outhern part of NER Grid (South Assam (Gr.F of Assam), Mizoram, Tripura and if needed, Manipur)

Automatic Local Area : Measurement at 220 kV Khleihriat Substation

Wide Area: Load shedding in southern part of NER Grid (South Assam, Mizoram, Tripura and if needed, Manipur)

NERLDC and SLDCs

Loss of 132 kV Khandong - Haflong S/C line

Shed Load in outhern part of NER Grid (South Assam (Gr.F of Assam), Mizoram, Tripura and if needed, Manipur)

Automatic Local Area : Measurement at 132 kV Khandong Substation -


NERLDC and SLDCs

192

Loss of 132 kV Dimapur - Imphal S/C line

Shed Load in outhern part of NER Grid (South Assam (Gr.F of Assam), Mizoram, Tripura and Manipur)

Automatic Local Area : Measurement at 132 kV Imphal Substation


NERLDC and SLDCs

NER

- INTR

A-R

EGIO

NA

L LOSS O

F HIG

H C

AP

AC

ITY C

OR

RID

OR

Loss of 132 kV Loktak - Jiribam S/C line

Back down generation of Loktak HPS or shed load in South Assam, Mizoram and Tripura+

Automatic Local Area : Measurement at 132 kV Loktak Substation -

Wide Area: Back down generation of Loktak HPS or shed load in South Assam, Mizoram and Tripura


NERLDC and SLDCs

Loss of 132 kV Ranganadi-Nirjuli S/C line

Shed load in Gr.A and Gr.B in Arunchal Pradesh and in Gr.G of Assam

Automatic Local Area : Measurement at 132 kV Nirjuli Substation -

Wide Area : Shed load in Gr.A and Gr.B in Arunchal Pradesh and in Gr.G of Assam

NERLDC and SLDCs

Loss of 220 kV BTPS-Agia S/C line Shed load in all states of

NER in proportion

Automatic Local Area : Measurement at 132 kV BTPS Substation -

Wide Area : Load shedding to be done in entire system of NER

NERLDC and SLDCs

Loss of 132 kV BTPS-Dhaligaon S/C line

Back down Stns. A, B and C of Assam system

Automatic Local Area : Measurement at 132 kV BTPS Substation -

Wide Area: Injection of Stns. A, B and C to be reduced

NERLDC and SLDCs

193

Annex 5.B-NER-Islanding Schemes Note: All islanding scheme will set at 47.8 Hz Instantaneous till the revised AUFR settings in place.

Sr.

No Scheme Island size

Frequency of island

initiation status

Group/Stat

e

NER

- ISLAN

DIN

G SC

HEM

ES

1

Islanding of entire NER after disconnecting 400 kV Bongaigaon –

Binaguri D/C line & 220 kV Salakati –Birpara D/C line from Bongaigaon

& Salakati respectively with the help of UFR relays

1200 - 1800 MW 48.2 Hz instantaneous Proposed NER

2

Loktak(NHPC) Generation with Manipur load by disconnecting 132 kV

Loktak- Jiribam-II & 132 kV Dimapur – Imphal lines with the help of

UFR relays

35 - 100 MW 47.8 Hz instantaneous Proposed Loktak &

Manipur

3 DHEP with part of Nagaland(Mokakchung Load) disconnecting 132 kV

Doyang – Dimapur D/C line with the help of UFR relays 7 -10 MW 47.8 Hz instantaneous Proposed

DHEP &

Nagaland

4 NTPS(Assam) with part of upper Assam load 40 - 60 MW 47.8 Hz instantaneous Already in

place Assam

5 KLHEP(Assam) with Guwahati load 40 – 80 MW 47.8 Hz instantaneous

Proposed.

Being

studied by

Assam.

Assam

194

Annex 5.B-NER-Islanding Schemes Note: All islanding scheme will set at 47.8 Hz Instantaneous till the revised AUFR settings in place.

Sr.

No Scheme Island size

Frequency of island

initiation status

Group/St

ate

NER

- ISLAN

DIN

G SC

HEM

ES

6 AGTPP(NEEPCO) generation with Agartala(Tripura) load 40 – 70 MW 47.8 Hz

instantaneous Proposed

AGTPP &

Tripura

7 Rokhia(Tripura) generation with load of adjoining area 20 - 40 MW 47.8 Hz

instantaneous

Proposed.

Being

studied by

Tripura.

Tripura

8 Umium Stage-I & Stage-II, Kyrdamkulai Stage – III & Stage – IV with

Mawlai , Nehu & Neghrim load 60 – 80 MW

47.8 Hz

instantaneous

Proposed.

Being

studied by

Meghalaya.

Meghala

ya

9 AGBPP(NEEPCO) generation with Tinsukia, Mariani (Assam) &

Deomali (AP) load 80 – 120 MW

47.8 Hz

instantaneous Proposed.

AGBPP,

Assam &

AP

Documents

Automated Defence plans for secure Grid Operation prepared by