MSETCL- AN OVERVIEW

Zalte UG Director (Operations)

M.E. Elect.

April, 2012

2

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.)

10

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

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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

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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….

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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

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• 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

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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

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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

25

New nut bolts fixed of 100kV Khopoli-Andra Lake line

26

Fault Detected

Fault Rectified

400 KV Main Bus II at 400 KV Chandrapur SS

Fault: Conductor Found Damaged

27

132 KV DHULE LINK LINE-i

BEFORE AFTER

28

220 KV DHULE-AMALNER LINE

BEFORE AFTER

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.

32

SSN TO DSN & STN TO DTN LOC-54

33

Line : 500KV HVDC CHANDRAPUR - PADGHE LINE.

Loc. No. 253

Fault: BROKEN DISC INSULATOR

BACK

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

BACK

39

Hot Line Maintenance Training

BACK