BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 1 of 14

A. 415V PMCC/MCC, 415V AC & 220V DC DB/SVB/FB,220V DC STARTER

1.1 Make : BHEL-EPD

1.2 Type : Drawout for PMCC/PCC/MCC/SVB

Fixed for DB/FB/MCCB

1.3 Reference Standard : IS: 13947and IEC 60439-1

1.4 Voltage (Nom./ variation) Volt : 415 / Voltage variation is ±10% and

Frequency variation is +3 to -5%

1.5 Phase, Frequency No., Hz : 3, 50

1.6 Short Circuit Rating

a) Interrupting Symmetrical KA : 50

b) Short time for 1 sec. KA rms : 50

1.7 Insulation Level

1-min., 50 Hz Voltage withstand KV rms : 2.5

1.8 Construction

a) Metal clad, air insulated, floor mounting Yes/No : Yes

b) Suitable for mounting against

building wall Yes/No : Yes

1.9 Enclosure

a) Degree of Protection : IP – 52 for rating <=1600A

IP – 42 for rating >1600A

b) Minimum thickness of sheet metal mm : 1.6 for door, 2.0 for frame

1.10 PMCC/MCC fully assembled,

wired and tested at factory Yes/No : Yes

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BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 2 of 14

2.0 CONSTRUCTION

2.1 Design

a) Completely compartmentalised : YES, with metal/insulating partitions between

compartments except for FBs which are non-

compartmentalised.

b) Working height limits from floor level : limited between 250 and 1800mm

2.2 Drawout features provided for

a) Circuit breaker with SERVICE, TEST

and ISOLATED position Yes/No : Yes

b) Voltage Transformers Yes/No : Yes

c) Protective Relays Yes/No : Yes

d) MCC module provided with service

test& isolated position Yes/No : Yes

2.3 Breaker Cubicle

a) Breaker cubicles restricted

to bottom 2-tiers only Yes/No : Yes

b) Working height limits

from floor level : limited between 450 and 1800mm

2.4 Control Compartment provided

with individual front access door? : Yes

2.5 PMCC/MCC section provided with

a) Removable back cover : Yes

b) Full height cable chamber : Yes

2.6 Horizontal wire way for inter panel wiring : Yes

2.7 All meter, switch and relays flush

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BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 3 of 14

mounted type Yes/No: Yes

3.0 BUSBAR

3.1 Make : HINDALCO/JINDAL

3.2 Material : Aluminium,grade-63401

3.3 Reference, Standard : IS 5082 (E91E)

3.4 Maximum temperature rise in Deg.over 50 Deg.C : 40 with plain bolted joint

: 55 with silver plated bolted joint

3.5 Short-time current for 1 sec. KA rms. : 105

3.6 Minimum clearance of barebusbar and connection

a) Phase to phase mm : 25

b) Phase to ground mm : 25

3.7 Busbars colour coded Yes/No : Yes

3.8 Bus Support Insulator

a) Make : DDE

b) Type : Non-hygroscopic,

Flame retardant, High tensile strength Track resistance type.

c) Voltage class KV : 415

d)Creepage @25 mm/kV : Min 28 mm

4.0 CIRCUIT BREAKER

4.1 Make :C&SElectric/L&T/GE/Siemens/Schnieder

4.2 Type : Air break

4.3 Reference Standard : IEC: 60947-2

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 4 of 14

4.4 Rated Voltage V : 415

4.5 Rated Frequency Hz : 50

4.6 No. of Poles : 3

4.7 Rated Currents

a) Continuous (at site condition,

50 Deg.C ambient & within cubicle) Amp. : As per rating approved

b) Short-time Current for1 second KA rms. : 50

4.8 Maximum temperature rise over

50 Deg.C ambient Deg.C. : 40

4.9 Rated Operating Duty : Continuous

4.10 Operating duty : 0-3'-CO-3'-CO

4.11 Rated Making Current KA.peak : 105

4.12 Insulation Level

1-minute 50 Hz voltage withstand KV rms. : 2.5

4.13 Minimum clearance in air

a) Between poles mm : 25

b) Between live parts & ground mm : 25

4.14 Operating Mechanism

a) Type : Closing – Motor wound spring

Tripping – shunt trip

b) No. of breaker operations stored :

c) Anti-pumping features provided ? : Yes

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 5 of 14

4.15 Spring Charging Motor

a) Rating W : As per manufacturers standard

b) Voltage V : 220V D.C.

4.16 Closing Coil

a) Voltage V : 220V D.C.

b) Permissible Voltage variation % : (85 - 110%)

4.17 Tripping Coil

a) Voltage V : 220V D.C.

b) Permissible Voltage variation % : (70 - 110%)

4.18 For trip circuit supervision can the

tripping coil be connected in series with :

a) Green lamps when breaker is open : Yes

b) Red lamps when breaker is closed : Yes

5.0 FUSE

5.1 Make : S&S/L&T/GE/Siemens/Alstom /CGL

5.2 Type : HRC

5.3 Reference standard : IS: 13703 / IEC: 60269

5.4 Rupturing capacity KArms (sym) : AC – 80, DC - 25

6.0 CONTACTORS

6.1 Make :C&SElectric/L&T/GE/Siemens/Schnieder/ABB

6.2 Type : Air break electro magnetic

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 6 of 14

6.3 Reference standard : IS: 13947-4-1 / IEC-60947-4-1

6.4 Duty class : AC - Class III-category

AC3 for unidirectional drives and

AC4 for bi- directional /inching duty drives

DC - Class I - category DC2.

6.5 Utilization category : Reversible Motor – AC4

Non - Reversible Motor – AC3

6.6 Auxiliary Contacts furnished per Contactor :

a) Normally open (NO) : 4 min

b) Normally closed (NC) : 4 min

7.0 CONTROL & INDICATIONS

7.1 Push Buttons

a) Make :BCH/L&T/Schneider/Siemens/Tecknic Control

Cands/C&S Electric/GE/Vaishno/ABB/GEC

Alstom/RAAS Control/TM/Honeywell/

Tele mechanic

b) Type & Cat. No. :Spring Return Push To Actuate

c) Contact rating : DDE

i) Make & Continuous Amp :

• 240 V AC Amp : DDE & 10A

• 220 V DC Amp : DDE & 2A

7.2 Lamps (LED Type)

a) Make : Siemens/RASS(C&S Electric)/Vaishno/Alstom Ltd.

BCH/GE/Schneider/Concord/ABB/Essen Deinki/

TM/Siemens/Tecknic Controls/Binay Siemens

b) Type & Cat. No. : Led Clustered Aluminium Indium

Gallium Phosphide Technology & DDE

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 7 of 14

c) Voltage : DDE

8.0 CURRENT TRANSFORMER

8.1 Make : Automatic Electric/Indcoil/Kappa Electricals/

Pragathi Electricals/Prayog/Silkaans/C&S

Electric/Precise Electricals/Southern

Electricals/ABB/Siemens/Kalpa/Jyoti/Telk

8.2 Type : Cast Resin

8.3 Reference Standard : IS: 2705

8.4 C.T. Ratios as per drawings ? : Yes

8.5 Rated frequency : 50 Hz

8.6 Class/ALF or ISF/VA burden furnished for :

a) Differential C.T. : PS

b) Relaying C.T. : 5P10

c) Metering C.T. : Class 0.5 ISF < 5

8.7 Short-Circuit Withstand

a) Short-time current for 1 sec. KA rms. : 50

b) Dynamic current KA peak : 105

8.8 Class of Insulation : ‘E’ or Better

8.9 Temperature rise over 50 Deg.C ambient : 30

8.10 Basic Insulation level KV rms : 2.5

9.0 VOLTAGE TRANSFORMER

9.1 Make : Automatic Electric/Indcoil/Kappa Electricals/

Pragathi Electricals/Prayog/Silkaans/C&S

Electric/Precise Electricals/Southern

Electricals/ABB/Siemens/Kalpa/Jyoti/Telk

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 8 of 14

9.2 Type : Cast Resin

9.3 Reference Standard : IS: 3156

9.4 Voltage ratio : 415/110

9.5 Rated frequency : 50 Hz

9.6 Accuracy class : 3P

9.7 VA burden : DDE

9.8 Over Voltage factor

a) Continuous : 1.9

b) 30 seconds : 3

9.9 Class of Insulation : ‘E’ or Better

9.10 Temperature rise over 50 Deg.C ambient : 40

9.11 Basic Impulse Level Kvp : 2.5

9.12 Winding Connection

a) Primary : star

b) Secondary : star

9.13 Fuses

a) Continuous rating Amp. : DDE

b) Symmetrical fault rating KA rms. : 50

10.0 RELAYS

10.1 Drawout type with built in test facilities : Yes

10.2 Type of mounting : Fixed

10.3 Reference Standard : IS-3231

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 9 of 14

10.4 Protections offered for feeders:

1. Incomer feeder : 51, 51N, 51SN, 64, 27, 74(TCS)

VT Fuse Failure, CB failure

2. Motor Feeder :Thermal model with negative sequence

current,Voltage compensated acceleration

U/V,O/V, overload protection, short circuit&

SC backup,Current unbalance, Ground

Fault, Temperate monitoring (stator, bearing ), Phase reversal.

3. Outgoing Feeder : 51, 51N

Apart from protection relays, each electrically operated breaker shall be provided withanti-pumping (94)(inbuilt of breaker), lockout (86) Lockout relay shall be hand reset type.

11.0 METERS

11.1 Make : DDE

11.2 Type : switchboard

11.3 Reference Standard : IS-722

11.4 Size : 96 x 96 mm with 240 Deg. scale,

11.5 Scale : Full

11.6 Accuracy class : ± 2%

11.7 Meter Switch

a) Make : DDE

b) Type : Rotary

c) Cat. No. : DDE

12.0 SECONDARY WIRING

12.1 Type of Insulation : PVC

12.2 Voltage grade : 1100 V

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 10 of 14

12.3 Conductor material : Copper

12.4 Conductor Size (Minimum)

a) Potential & Control Circuit : 1.5 Sq.mm

b) Current Circuit : 2.5 Sq.mm

12.5 Wires identified at both

ends with markers ? : YES

13.0 TERMINAL BLOCK

13.1 Make : Phoenix/Connect well/Elemex/Wago/

Essen Deinki/Technoplast/Tosha/

Controls&Switchgear/Jainson

13.2 Type : box-clamp

13.3 Voltage grade : 1100 V

14.0 CABLE TERMINATION

14.1 Cable termination/connection

furnished as specified : Yes

14.2 Cable termination kit furnished

a) Make : NA

b) Type : NA

c) Complete with all accessories : NA

14.3 Cable entry provision from top and bottom Yes/No : Yes

14.4 Cable Lugs

a) Type : crimp

b) Material : tinned copper

14.5 Cable Gland

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 11 of 14

a) Type : Double compression

b) Material : Nickel plated Brass

c) With tapered washer : YES

d) With armour clamp : YES

14.6 Removable Gland Plate

a) Material for multicore cable : CRCA

b) Material for I/C cable : CRCA

c) Thickness of the plate : 3

15.0 BUSDUCT CONNECTION

15.1 Busduct connection suitable for-

a) Top entry Yes/No : YES

b) Side entry Yes/No : NO

15.2 Busduct connection as per

drawing furnished Yes/No : Yes

16.0 GROUND BUS

16.1 Ground bus furnished : YES

16.2 Material : Galvanized steel

16.3 Size : 75 x 10 mm

17.0 NAME PLATE

17.1 Material : anodized aluminium

17.2 Thickness : 3 mm

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV SWITCHGEAR

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 12 of 14

18.0 SPACE HEATER/PLUG SOCKET

18.1 Cubicle Heater

a) Thermostat controlled : Yes

18.2 Plug Socket

a) Type : 3 pin , Industrial

b) Rating : 5 A

19.0 A.C./D.C. SUPPLY

19.1 Isolating switch fuse unit for incoming supply :

a) A.C. - type & rating : 4-pole, double throw & DDE

b) D.C. - type & rating : Double pole, double throw with off & DDE

c) Three position DC selector switch : Rotary type & 220V DC

19.2 Isolating switch fused unit at each cubicle :

a) A.C. - type & rating : 4-pole, single throw & 415V

b) D.C. - type & rating : 2- pole double throw with off & 220V

20.0 PAINTING

20.1 Finish-

a) Inside : as per specification

b) Outside : battle ship grey IS: 632 as per IS-5

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV BUSDUCT

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 13 of 14

B. 415 V NON SEGREGATED PHASE BUSDUCT

1.1 Type : Non-segregated

1.2 Service : Indoor/Outdoor

1.3 Rated Voltage V : 415

1.4 Phase Nos. : 3

1.5 Frequency Hz : 50

1.6 Combined Voltage And : 10%(absolute sum)

Frequency Variation

1.7 Service voltage : 240 V AC �10%, 1-phase

(for space heater)

2.0 One(1) minute power frequency : 2.5 KV(rms)

Withstand voltage(minimum)

3.0 Rated Continuous Current Amp :As per approved drawing

4.0 Maximum temperature rise over 50 Deg.C ambient

a) Bus conductor

i) With Silver Plated bolted joints : 55�C

ii) With Plain or Tin joints : 40�C

b) Bus enclosure and structure : Accessible Portion 20°C

Non-accessible Portion 30°C

5.0 Rated Short Time Current Symmetrical Momentary

KA for 1 Sec. KA peak

Main Run . : 50 KA 105 KA

6.0 Material

a) Conductor :Aluminium

BHEL-EPD

BANGALORE

DOCUMENT TITLE:

2X660MW IB VALLEY TPS

DATA SHEET

LV BUSDUCT

DOCUMENT NO. EP-3-GN-107-001

SECTION : II

REV NO. :01 ; DATE: 5/03/2014

Page 14 of 14

b) Enclosure :Sheet steel below 2000A

Aluminium alloy Above 2000A

7.0 Shipping Section(Maximum) : 3M

8.0 Bus Insulator

a) Voltage class KV : 1.1

b) Creepage distance mm : 28mm/KV

c) Material : Flame retardant, non-hygroscopic, high

strength track resistant

d) Conductor mounting : Fastened through fixed and slip joints

e) Earth Clearance : 25 mm

9.0 Switchgear Terminal Adaptor Box

a) Material of enclosure :Aluminium

b) Thickness of enclosure mm :3mm

c) Thickness of enclosure cover/ Canopy : 2mm

10.0 Minimum clearance for bus bar and connection

a) Phase to phase :25mm

b) Phase to earth :25mm