MSETCL- AN OVERVIEW Zalte UG Director (Operations) M.E. Elect.

Transcription

1 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 2

3 MSETCL Current Infrastructure MSETCL functions as: Transmission licensee State load dispatch centre (SLDC) State transmission utility (STU) MSETCL s present infrastructure: As on 31 st March Voltage level EHV Substation Transformation Capacity (MVA) EHV Lines (CKT KM.) 500KV HVDC KV KV KV KV KV KV TOTAL

4 Abstract for Lines, Substation & Transformation capacity Transmission Network Capacity Addition F. Year Nos. of S/stn Lines (Ckt. K.m) Transformatio n Capacity (MVA) Nos. of S/stn Lines (Ckt. K.m) Transformation Capacity (MVA)

5 Transmission System Availability & Losses against MERC benchmark HVAC system (MERC Benchmark 98%) Year Avail % 98.82% 98.99% 99.29% 99.48% % % HVDC System(MERC Benchmark 95%) Year Avail % 91.73% 92.29% 93.55% 94.96% % % Nos. of EHV Lines Interruptions (Excluding 66kV level) Nos Average Annual Composite Loss Wheeling Units In MUs Sr. No. Year Loss Energy I/P Energy O/P 1 Annual ' % Annual' % Annual % Annual % Annual % Annual (upto Dec-2012) 4.26% % 6.00% 4.00% 2.00% Average Annual Composite Loss 5.94% 4.67% 4.88% 4.61% 4.31% 4.26% Wheeling Units In MUs % upto Dec upto Dec-12 5

6 Efforts For Performance Improvement 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. 6

7 Projects MSETCL 5yr Plan MSETCL - Five Year Investment for Transmission Infrastructure Plan ( to ) Sr. No. Particulars (Actual) (Actual) (Actual) (Actual) (Actual) Total (Proposed) 1 2 New Substations (Nos.) A. MVA Addition due to New Substations B. MVA Addition due to Additional Transformers C. MVA Addition due to Replacement of Transformers Total MVA Addition (a+b+c) EHV Lines (Ckm) Capital Expenditure (Rs in Crore) (Provisional)

8 Financial Performance Analysis Profit ( in Crores) (Provisional) Profit for FY to Year Profit ( in Crores) (Provisional) 8

9 Details of Capital Expenditure: Capital Expenditure ( In Cr.) (Provisional) (Proposed) Year Capital Expenditure ( In Cr.) (Provisional) (Proposed) 9

10 10

11 765KV Project 765 kv corridor is being established with substations at Koradi, Akola and Aurangabad with 1260 ckm of two single circuits of 765 kv lines between Tiroda to Nagpur and Aurangabad by for evacuation of power(8000mw) from Koradi, Mauda & Adani generation projects. 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. 11

12 JICA PROJECT Name of Project Project Area No. of substations : 108 No. of Transformers : 180 MVA addition Total Estimated cost : : Replacement of transformers by higher capacity transformers. : Karad, Pune, Nasik & Vashi Zones (15 Districts of these zones) : MVA Cr Loan Amount : Mil Yen Interest rate 0.75 % p.a. for 15 years including 5 years grace period. Disbursement charge 0.1% Loan Agreement : Signed in 14 th Sept. 07 Transformer Commissioned : 180 Nos. (as on 14 th February, 2012) 12

13 MSETCL SMARTGRID PILOT PROJECT WIDE AREA MEASUREMENT SYSTEMS (WAMS)- To enhance Operation, Monitoring capability and observability of GRID WAMS SCOPE 1. PMU Locations: GPS Locations :15 3. At SLDC-Kalwa - PMUs : 15 Locations PDC at SLDC Kalwa Phasor Data Concentrator(PDC), Visualisation software, Archiving software and Historian server Situational Awareness Situational Awareness 13

14 Optical Power Ground Wire 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 : Cr. 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. Contd. 14

15 Optical Power Ground Wire Period of Completion : PHASE Distance (Kms) Period (months) PHASE I 379 kms 09 months PHASE II 1219 Kms 15 months PHASE III 1203 Kms 24 months Contd. 15

16 OPGW Network of MSETCL (Proposed) PRAKASHGARH PRAKASHGANGA 20 PIPERKHED BHABHALESWAR 80 CHALISGAON DHULE BHUSAWAL 60 AURANGABAD MALKAPUR HATHUVAN 96 PARAS 95 BADNERA 5 AMRAVATI AKOLA AJEGAON 101 AMBAZARI ALDC CHANDRAPUR MALKINI AMRAVATI NAG1,NAG2,HING KORADI 53 BUTIBORI warora 98 HVDC DHABA 5 WARDHA PARBHANI NAGPUR WARDHA 2 PUSAD NASIK 20 HIRVA SLDC BHIVANDI HVDC KALWA PADHGE VASHI KHARGHAR COLORCHEM LONIKAND MULUND TROMBAY BORIWALI GUHA WAI DEHGAM PUNE (Chkn,C wad, H wadi etc.) KOYNA KARAD KOLHPUR MALINAGAR 247 MW LINK DC SLDC ALDC SOLAPUR 400 EXISTING OPGW LINK Phase 1 Phase 2 Phase 3 HEAD QUARTER DC/ZCC PARLI PROPOSED F.O ON 132 KV LINE ALDC IMPORTANTS STATIONS ZONAL OFFICE ALL DISTANCES IN KM CIRCLE OFFICE 16

17 GENERAL CONSTRAINTS 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). Contd. 17

18 GENERAL CONSTRAINTS 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 clearance Forest dept. to give priority for clearances since the works are for public. Gram sabha resolution compulsory under Dwellers Act.2006 Govt. Land allocation Advance 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 taxes High Expectation/ Demand from Grampanchayat/ Municipal Council/ Local bodies. 18

19 CHALLENGES IN TR.(O&M) DEPTT. OF MSETCL 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. 19

20 TRAINING STATISTICS FOR THE YEAR Sr. No. Name of Training Programme No. of Employee Budget Allocated for the Year No. of Participants undergone Training as on Expenditure incurred as on ( In Lakhs) 1 Induction Level Training for JE's Other Training Programmes at YASHADA Hot Line Training RTC (Operator Training + Refresher) Seminar / Conference & Other Training Foreign Tour Seminars at Zone Workshop RTC Development R & D At Aurangabad RTC (Class II Training) Examination Cell TOTAL

21 TRAINING STATISTICS FOR THE YEAR BVQI (Bereau Varitas Quality International) - ISO 9001: th RECRUITING & STAFFING BEST IN CLASS AWARDS Most Innovative RECRUITING AND STAFFING PROGRAM / INITIATIVE by IIPM GLOBAL HR EXCELLENCE AWARD Outstanding Contribution to the cause of EDUCATION CPRI AWARD 2011 Valued Customer Award in Training GREEN WORLD Women s Group of MSETCL for their contribution to power sector SAP : SAP ACE ( Award for customers excellence) for Best Run in utilities transmission in Public sector

22 MSETCL Salient activities under implementation ERP MIS project with the assistance of IBM Enterprise Resource Planning by integrating all the functions of MSETCL departments on line to achieve performance excellence in business, Go live since Optic Fibre communication of about 2801 Km. - To set up a comprehensive communication network in MSETCL by 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 and implementation of FBSM. Setting up of Training Centres at 7 locations and Power System Learning Centre at Aurangabad to create skilled manpower. Preparatory work for debt restructuring and for launch of MSETCL s IPO To raise funds from market for equity capital / 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. of SCADA 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 22

23 MAHATRANSCO IN NUTSHELL 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 Ckt. kms of Transmission lines MVA Transformation capacity. Infrastructure plan ( to ) of about 10347Crore. Transmission system capable of handling about MW of power. Transmitted MUs. in the year Staff strength of around employees all across Maharashtra. 23

24 Line: 132KV khapari - Hingana-II B- ph Loc. No. 55 Fault: Missing nut bolt of cut point jumper of Fault Detected Fault Rectified

25 New nut bolts fixed of 100kV Khopoli-Andra Lake line 25

26 400 KV Main Bus II at 400 KV Chandrapur SS Fault: Conductor Found Damaged Fault Detected Fault Rectified 26

27 132 KV DHULE LINK LINE-i BEFORE AFTER 27

28 220 KV DHULE-AMALNER LINE BEFORE AFTER 28

29 Remedial Actions taken in view of Maintenance Replacement of pilot string (132kv Nashik,GCR-Jindal, Loc no-15) 29

30 Line: 400KV CHANDRAPUR -PARLI-III LINE. LOC. NO. : 57 TO 58 Fault Detected Fault: CONDUCTOR STRANDS CUT IN R- PHASE Fault Rectified 30

31 132kV Bambhori-Jalgaon S/C Line Before After At Tower Loc. No. 23 Hanger Clit Nut-Bolt loose & tightened under outage on Dt

32 SSN TO DSN & STN TO DTN LOC-54 32

33 Line : 500KV HVDC CHANDRAPUR - PADGHE LINE. Loc. No. 253 Fault: BROKEN DISC INSULATOR BACK 33

34 220 kv Kandalgaon Wave trap bottom side R ph Hot spot observed on dtd- 10/11/11 Temp C After attending Hot spot on 15/11/11 Temp C 34

35 220 kv Jejuri Bay Line Isolator Line side B ph Hot spot observed on dtd- 10/11/11 Temp C After attending Hot spot on dtd - 20/12/11 Temp C 35

36 220/132 kv 200 MVA TF I HV Bus isolator (bus side) Y ph Hot spot observed on dtd-27/11/11 Temp C11/11 Temp C After attending Hot spot on 27/11/11 Temp C 36

37 220/132 kv 200 MVA TF II HV Line isolator CT side Y ph Hot spot observed on dtd- 10/11/11Temp C After attending Hot spot on 27/12/11 Temp C 37

38 220/132 kv 200 MVA TF I LV Bus isolator CB Side Y ph Hot spot observed on dtd- 10/11/11Temp C After attending Hot spot on 12/01/12 Temp C BACK 38

39 Hot Line Maintenance Training BACK 39