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Contents
1. Current Infrastructure
2. Operations & Maintenance
3. Transmission Infrastructure Plan
4. Financial performance.
5. MSETCL Smart Grid Pilot project
6. MSETCL OPGW project
3
MSETCL functions as:
Transmission licensee
State load dispatch centre (SLDC)
State transmission utility (STU)
MSETCL’s present infrastructure:
As on 31st March. 2012
MSETCL – Current Infrastructure
Voltage level EHV SubstationTransformation
Capacity (MVA) EHV Lines (CKT KM.)
500KV HVDC 2 3582 1504
400KV 22 18180 7405.6
220KV 171 39383 13208.87
132KV 260 21633 12072.82
110KV 34 2674 1724
100KV 36 2587.5 686
66KV 34 1139 3270
TOTAL 559 89178.5 39871.29
4
Abstract for Lines, Substation & Transformation capacity
Transmission Network Capacity Addition
F. Year 05-06 06-07 07-08 08-09 09-10 10-11 11-12
Nos. of S/stn. 468 489 501 515 520 536 559
Lines
(Ckt. K.m)35028 35628 36288 36718 37133 38068 39871.3
Transformatio
n Capacity
(MVA)
55759 57713 61530 66119 73792 82619 89178.5420
440
460
480
500
520
540
560
05-06 06-07 07-08 08-09 09-10 10-11 11-12
468
489501
515 520
536
559
Nos. of S/stn.
32000
33000
34000
35000
36000
37000
38000
39000
40000
05-06 06-07 07-08 08-09 09-10 10-11 11-12
3502835628
3628836718
37133
38068
39871.29
Lines(Ckt. K.m)
0
10000
20000
30000
40000
50000
60000
70000
80000
90000
05-06 06-07 07-08 08-09 09-10 10-11 11-12
55759 5771361530
6611973792
8261989178.5
Transformation Capacity (MVA)
5
Transmission System Availability & Losses against MERC benchmark
HVAC system (MERC Benchmark 98%)
Year 05-06 06-07 07-08 08-09 09-10 10-11 11-12
Avail. 98.72% 98.82% 98.99% 99.29% 99.48% 99.62 % 99.72 %
HVDC System(MERC Benchmark 95%)
Year 05-06 06-07 07-08 08-09 09-10 10-11 11-12
Avail. 63.48% 91.73% 92.29% 93.55% 94.96% 97.62 % 96.55 %
Nos. of EHV Lines Interruptions (Excluding 66kV level)
Nos. -- -- -- -- 3034 1989 1660
Average Annual Composite Loss
Sr. No. Year LossWheeling Units In MUs
Energy I/P Energy O/P
1 Annual '06-07 5.94% 89032 83748
2 Annual'07-08 4.67% 93557 89189
3 Annual’08-09 4.88% 95477 90815
4 Annual’09-10 4.61% 101873 97181
5 Annual’10-11 4.31% 107808 103160
6 Annual’11-12 (upto Dec-2012) 4.26% 87586 83864
5.94% 4.67% 4.88% 4.61% 4.31% 4.26%
0.00%
2.00%
4.00%
6.00%
8.00%
06-07 07-08 ’08-09 ’09-10 ’10-11 ’11-12 upto Dec-12
Average Annual Composite Loss
8374889189 90815 97181 103160
83864
0
20000
40000
60000
80000
100000
120000
06-07 07-08 ’08-09 ’09-10 ’10-11 ’11-12 upto Dec-12
Wheeling Units In MUs
6
In order to reduce number of interruptions/ occurrences & improve system availability following measures
have been taken,
• Micro level analysis of each & every occurrence to pin point root cause & take suitable corrective/
remedial measures to avoid recurrence in future.
• Modernization of Protection System by way of retrofit/ replacement of existing old protection systems
such as Distance, Differential, Back-up, Busbar protection etc.
• Adoption of predictive & proactive maintenance practices instead of earlier periodic maintenance
practices.
• Effective use of diagnostic testing equipments & various practices such as-
- C & tan-delta Measurement
- Leakage Current Measurement (LCM) of LAs
- Puncture Insulator Detector (PID) Testing
- Dissolved Gas Analysis (DGA)
- Thermovision Scanning
- Monkey patrolling with ordinary camera etc.
• Adoption of Hot-Line maintenance practices through Hot-Line Maintenance Units (HLUs)
• Implementation of Life Extension Schemes (LES) wherein age old switchyard equipments like CBs,
CTs, CVTs/PTs, Isolators, LAs etc. are replaced.
Efforts For Performance Improvement
7
Projects – MSETCL 5yr Plan
MSETCL - Five Year Investment for Transmission Infrastructure Plan
(2007-08 to 2011-12)
Sr. No. Particulars 2007-08
(Actual)
2008-09
(Actual)
2009-10
(Actual)
2010-11
(Actual)
2011-12
(Actual) Total
2012-13
(Proposed)
1New Substations
(Nos.)12 14 5 16 24 71 25
2A. MVA Addition due
to New Substations 587 1125 465 1720 2400 6297 4850
B. MVA Addition due
to Additional
Transformers
1785 2200 3460 2850 4825 15120 3650
C. MVA Addition due
to Replacement of
Transformers
1445 1263 3748 4257 1600.5 12313.5
Total MVA
Addition (a+b+c)3817 4588 7673 8827 8825.5 33730.5 8500
3 EHV Lines (Ckm) 660 430 417 935 1666 4108 1586
4Capital Expenditure
(Rs in Crore)1114 1241 2363 3100
2529
(Provisional)10347 4895
8
Profit for FY 2007-08 to 2010-11
Year Profit ( in Crores)
2007-08 258.2
2008-09 137.51
2009-10 245.01
2010-11 329
2011-12 365 (Provisional)
Financial Performance Analysis
0
50
100
150
200
250
300
350
400
2007-08 2008-09 2009-10 2010-11 2011-12 (Provisional)
258.2
137.51
245.01
329
365
Profit ( in Crores)
9
YearCapital Expenditure
( In Cr.)
2007-08 1114
2008-09 1241
2009-10 2363
2010-11 3100
2011-12 2529 (Provisional)
2012-13 4895 (Proposed)
Details of Capital Expenditure:
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
2007-08 2008-09 2009-10 2010-11 2011-12 (Provisional)
2012-13 (Proposed)
1114 1241
2363
3100
2529
4895Capital Expenditure ( In Cr.)
11
Brief details of works:-
1. Establishment of 765 kV Pooling S/stn. at Koradi, Akola and Aurangabad with 7 x 500 MVA, 765/400 kV single phase transformers.
2. Construction of 400 kv loop lines at Koradi and Akola S/stn. to interconnect with 765 kv stns.
3. Construction of 2 x 765 kV Single Circuit lines between,
(a) Tiroda-Nagpur(Koradi-II)
(b) Koradi-II and Akola.
(c) Akola and Aurangabad.
765 kV corridor is being established with substations at Koradi, Akolaand Aurangabad with 1260 ckm of two single circuits of 765 kV linesbetween Tiroda to Nagpur and Aurangabad by 2012-13 for evacuation ofpower(8000MW) from Koradi, Mauda & Adani generation projects.
765KV Project
12
Name of Project : Replacement of transformers by higher capacity transformers.
Project Area : Karad, Pune, Nasik & Vashi Zones (15 Districts of these zones)
No. of substations : 108
No. of Transformers : 180
MVA addition : 7321.5MVA
Total Estimated cost : 763.48Cr
Loan Amount : 16749 Mil Yen Interest rate – 0.75 % p.a. for 15 years including 5
years grace period. Disbursement charge – 0.1%
Loan Agreement : Signed in 14th Sept. 07
Transformer
Commissioned : 180 Nos. (as on 14th February, 2012)
JICA PROJECT
13
WIDE AREA MEASUREMENT SYSTEMS (WAMS)-To enhance Operation, Monitoring capability and observability of GRID
WAMS SCOPE
1. PMU Locations: 15
2. GPS Locations :15
3. At SLDC-Kalwa -
Phasor Data Concentrator(PDC),
Visualisation software,
Archiving software and Historian server
Situational Awareness
MSETCL SMARTGRID PILOT PROJECT
Situational Awareness
PMUs : 15 Locations
PDC at SLDC Kalwa
14
Name of Project : Establishment of Comprehensive Communication Network
by laying OPGW over EHV lines of MSETCL through Joint
Venture.
Joint Venture Partner : M/s Sterlite Technologies Ltd.
Share Holding : MSETCL 49% and M/s Sterlite Technologies Ltd 51%
Project Area : 2801 (Kms)
No. of substations : 44 and All Zonal Offices
Total Estimated cost : 165.00Cr.
OPGW Fiber count : 48 Fibers
Special Benefit to MSETCL: 8 Fiber along with associated equipments SDH and
Mux for MSETCL own use at free of cost.
Optical Power Ground Wire
Contd….
15
Period of Completion :
Optical Power Ground Wire
Contd….
PHASE Distance (Kms) Period (months)
PHASE I 379 kms 09 months
PHASE II 1219 Kms 15 months
PHASE III 1203 Kms 24 months
16
KOYNA
72
WAI
PUNE
(Chkn,C’wad,
H’wadi etc.)
25
KALWA
7
56
SLDC
2
2020
LONIKAND
119
4
175
NASIK
PRAKASHGARH
PRAKASHGANGA
20
80
BHABHALESWAR
KARAD
247
MALINAGAR
SOLAPUR 400
140
PARLI
10
105
86
96
HIRVA
GUHA
96
DEHGAM70
10
AURANGABAD
20
96
HATHUVAN
101
AJEGAON
96
MALKINI
100
DHABA
98HVDC
5
70
110
PUSAD
PARBHANI
5WARDHA 1
ALDC
4
AMBAZARI
45
KORADI21NAGPUR
57
3124
859560
60
55
PIPERKHED
DHULE
170
CHALISGAON
BHUSAWAL
MALKAPURAKOLA
811
CHANDRAPUR
AMRAVATI
213
MW LINK
PADHGE
HVDC
90
DC
SLDC
ALDC
DC/ZCC
PROPOSED F.O ON 132 KV LINE
ALDC
HEAD QUARTER
IMPORTANTS STATIONS
ZONAL OFFICE
ALL DISTANCES IN KM
81
CIRCLE OFFICE
KHARGHAR
BORIWALI
OPGW Network of MSETCL
(Proposed)
Phase 1
Phase 2
Phase 3
AMRAVATI
PARAS
KOLHPUR 3
130
BADNERA53 BUTIBORI
COLORCHEM
MULUND
TROMBAY16
15
24
warora
36
EXISTING OPGW LINK
WARDHA 2
NAG1,NAG2,HING2
15
BHIVANDI
VASHI
17
• ROW Problems.
• Forest/WLS clearances.
• Sand issues.
• Salt pan clearance.
• Govt. Land Allocation.
• MIDC –corridor/land for s/s.
• Gram Panchayat / Municipal Taxes(existing s/s).
GENERAL CONSTRAINTS
Contd….
18
General Constraints Expected Cooperation from govt. authorities
ROW Issues
Concerned Collector referred to resolve ROW issues. Provide
necessary police protection whenever necessary on priority.
Assistance for land compensation cases.
Forest/WLS clearanceForest dept. to give priority for clearances since the works are for
public. Gram sabha resolution compulsory under Dwellers Act.2006
Govt. Land allocationAdvance possession of land to be given by collector after completion
of formalities by MSETCL
MIDC- corridor / land for S/S
MIDC authorities to handover suitable land for S/S. mark land for
MSETCL while preparation of layout of MIDC. Provide suitable
corridor for EHV lines as per voltage level.
Grampanchayat / Municipal taxesHigh Expectation/ Demand from Grampanchayat/ Municipal Council/
Local bodies.
GENERAL CONSTRAINTS
19
• Maintaining consistency in Transmission system Availability (HVAC & HVDC) & Transmission Losses at least as per MERC Benchmark & to improve it further.
• Reducing no. Of interruptions/ trippings and in turn the downtime of system.
• Avoiding recurrence of typical types of fault & occurrences.
• Completion of Life Extension (LE) Schemes and Augmentation Schemes as per the assigned targets.
• Adopting the modern concept of “Predictive & Proactive” maintenance practices.
• Effective & efficient use of various types of modern diagnostic equipment and hot line maintenance tools.
• Adopting new techniques & state-of-the art technologies to keep pace with technological developments.
CHALLENGES IN TR.(O&M) DEPTT. OF MSETCL
20
TRAINING STATISTICS FOR THE YEAR 2011-12
Sr.
No.Name of Training Programme
No. of
Employee
Budget
Allocated for the
Year 2011-12
No. of Participants
undergone Training
as on 18.10.2011
Expenditure
incurred as on
18.10.2011
( In Lakhs)
1 Induction Level Training for JE's 360 333.00 155 146.47
2Other Training Programmes at
YASHADA600 108.00 107 17.97
3 Hot Line Training 180 53.00 14 12.60
4 RTC (Operator Training + Refresher) 2900 153.00 1280 86.88
5Seminar / Conference & Other
Training350 34.50 118 24.12
6 Foreign Tour 10 10.00 9 3.92
7 Seminars at Zone 0 14.00 0 0.00
8 Workshop 0 5.00 0 0.00
9 RTC Development 0 325.00 0 50.00
10 R & D At Aurangabad 0 100.00 0 0.00
11 RTC (Class II Training) 940 48.00 50 3.15
12 Examination Cell 0 15.00 0 0.00
TOTAL 5340 1198.50 1733 345.11
21
TRAINING STATISTICS FOR THE YEAR 2011-12
• BVQI (Bereau Varitas Quality International) - ISO 9001: 2008
• 7th RECRUITING & STAFFING BEST IN CLASS AWARDS 2011 - MostInnovative RECRUITING AND STAFFING PROGRAM / INITIATIVE by IIPM
• GLOBAL HR EXCELLENCE AWARD 2010 - Outstanding Contribution to thecause of EDUCATION
• CPRI AWARD 2011 – Valued Customer Award in Training
• GREEN WORLD 2011 - Women’s Group of MSETCL for their contribution topower sector
• SAP : SAP ACE ( Award for customers excellence) for Best Run in utilitiestransmission in Public sector 2012
22
• ERP – MIS project with the assistance of IBM – Enterprise Resource Planning by integrating all the functions ofMSETCL departments on line to achieve performance excellence in business, Go live since 01.01.2012.
• Optic Fibre communication of about 2801 Km. - To set up a comprehensive communication network in MSETCLby utilizing existing infrastructure.
• Unmanned remotely controlled substations at two locations, GIS substations at Bhandup and Hinjewadi.
• ABT metering at 530 Sub-stations – Availability Based Tariff metering for energy accounting purposes andimplementation of FBSM.
• Setting up of Training Centres at 7 locations and Power System Learning Centre at Aurangabad to create skilledmanpower.
• Preparatory work for debt restructuring and for launch of MSETCL’s IPO – To raise funds from market for equitycapital / Capex Schemes and to reduce the interest burden resulting in long-term impact on tariff.
• Establishment of 765 KV substation at Aurangabad.
• Renovation and Modernization of State Load Dispatch Centre (SLDC) at Kalwa and Ambazari, with 140 Nos. ofSCADA –RTU.
• Effective utilization of hot-line Maintenance Techniques through Hot line Maintenance units (HLUs).
• MSETCL Smart Grid pilot project - To enhance Operation, Monitoring capability and observability of GRID
MSETCL – Salient activities under implementation
23
The largest electric power transmission utility in state sector in India.
The only state utility Operating & Maintaining ± 500kV, 1500 MW HVDC
Bipole Link between Chandrapur to Padghe (752 k.m.)
559 EHV substations.
39871 Ckt. kms of Transmission lines.
89178 MVA Transformation capacity.
Infrastructure plan (2007-08 to 2011-12) of about 10347Crore.
Transmission system capable of handling about 18500 MW of power.
Transmitted 103160 MUs. in the year 2010-11.
Staff strength of around 13128 employees all across Maharashtra.
MAHATRANSCO IN NUTSHELL
24
Line: 132KV khapari - Hingana-II B-ph
Loc. No. 55
Fault: Missing nut bolt of cut point jumper of
Fault Detected
Fault Rectified
12.02.2012
23.02.2012
26
Fault Detected
Fault Rectified
400 KV Main Bus II at 400 KV Chandrapur SS
Fault: Conductor Found Damaged
29
Remedial Actions taken in view of MaintenanceReplacement of pilot string (132kv Nashik,GCR-Jindal, Loc no-15)
30
Line: 400KV CHANDRAPUR-PARLI-III LINE.
LOC. NO. : 57 TO 58
Fault: CONDUCTOR STRANDS CUT IN R-PHASE
Fault Detected
Fault Rectified
31
132kV Bambhori-Jalgaon S/C Line
AfterBefore
At Tower Loc. No. 23 Hanger Clit Nut-Bolt loose & tightened under outage on Dt. 10.11.11.
34
Hot spot observed on dtd-10/11/11 Temp. 1430C
220 kV Kandalgaon Wave trap bottom side R ph
After attending Hot spot on
15/11/11 Temp. 36 0C
35
220 kV Jejuri Bay Line Isolator Line side B ph
Hot spot observed on dtd-10/11/11 Temp. 1030C
After attending Hot spot on dtd - 20/12/11 Temp. 400C
36
220/132 kV 200 MVA TF I HV Bus isolator (bus side) Y ph
After attending Hot spot on
27/11/11 Temp. 33 0CHot spot observed on dtd-27/11/11
Temp. 980C11/11 Temp. 82.1 0C
37
Hot spot observed on dtd-10/11/11Temp. 650C
220/132 kV 200 MVA TF II HV Line isolator CT side Y ph
After attending Hot spot on
27/12/11 Temp. 37 0C
38
Hot spot observed on dtd-10/11/11Temp. 2480C
220/132 kV 200 MVA TF I LV Bus isolator CB Side Y ph
After attending Hot spot on
12/01/12 Temp. 37 0C
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