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ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 1 of 9 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

I. ET & A METERING / PROTECTION / TESTING / COMMISSIONING SECTION.

A. PERFORMANCE INDICES: -

This YTM- Sr. YTM- INDICES month Nov 06 previous Target No. FY 07 Nov 07 year 1 Protection Performance Index (%) 94.87 % 98.02 % 98.25 % 98.87% 98.9 %

2 Protection Diagnostic testing Index (%) 4.64 % 3.27 % 41.08% 40 % 66.67 %

3 Equipment Diagnostic testing Index (%) 2.58% 2.25 % 24.76% 32 % 66.67 %

Energy meter Diagnostic testing 4 54.98% 52.83 % 54.98 % 52.83 % 100 % Index (%) External Customer Complaint 5 3.13 1.64 2.42 1.96 3.00 Resolution Time (Avg.) in Days Customer Complaint Satisfaction 6 4.76 4.14 4.57 4.52 4.65 Index (on the scale of 0 – 5)

B. ACCEPTANCE TESTING IN LAB:-

ET&A LAB TOTAL ACCEPTED REJECTED REMARKS No. of Relays/jobs - - - Tested in Relay Lab. No of Meters in Meter - - - (Saki + Trombay) Lab. No. of CT / PT tested in - - - HT Lab. No. of Instruments - - - Tested in HT/ RLY Lab. No. of Oil Sample Tested - - - in Oil Testing Lab. Calibration of Testing - - - instruments ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 2 of 10 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

C. MAJOR COMMISSIONING: -

Commissioned In this Cumulative up to this Meters month month Energy Meters 1 Whole Current 0 0 Commissioning CT Based 0 0 TVM 0 27

Consumer Sub  23/11/07: Wallace Flour Mills, 4 way RMU, CT/PT unit. 2 Stations  30/11/07: Tajsats, 3 way RMU, CT/PT unit. Commissioning

 Salsette R/S:- 110 kV Sal-Vik CT commissioned  Kalyan R/S:- 22kV Transfer breaker # 1 commissioned  Dharavi R/S:- New Siemens VCB for Feeder 55 commissioned Equipment  ST4 LV breaker commissioned 3 Carnac R/S:- Commissioning.  Parel R/S:- New ABT meters for Railways feeders  Bhira G/S:- 03 nos checkmeter commissioning on 110 KV lines & transfer bkr for Ex- bus energy metering

 TPCL:- UF & UFLS frequency revised as per CEA guide line  Salsette R/S:- 1. 110 kV KKS 2 line islanding scheme and carrier scheme commissioned 2. 22 kV Num o/c relay commissioned for MSEB 1  Saki R/S:- Protection 1. 110 kV Numerical Dir o/c relay commissioned for Transfer Breaker 2. 22 kV Numerical o/c relay commissioned for VP1/MIDC1, AP2/Chakala-2, 4 System / relays AP1/MIDC3 Commissioning.  Kolshet R/S:- 22 kV Numerical o/c relay commissioned for Thane-2, Thane- 1, KMKB-1, KMKB-2.  Dharvai R/S: - 22 kV Rly fdr # 33, 35, 37 Relay replacement  Khopoli G/S:- 22 KV Pipeline feeder SIEMENS make numerical o/c protection (7SJ600)commissioning.  Trombay A: - 22 kV 7SJ600 relay commissioned on 4 feeders 5 Metering  6 nos ABT meters were commissioning in series with the existing billing activities meters for REL at Chembur , Malad, Versova & Borivali.  Commissioned STU meter in series with the existing MSEB billing meter at Kolshet.  Pre-commissioning & Post-commissioning checks carried on PMGP feeder of BESTat Dharavi after breaker retrofitting.  Modification carried out in in BEST metering circuit due to retrofitting of Raoli (Feeder 49) breaker at Dharavi.  Defective meter at Goregaon Spoerts club - 1no was replaced.  Billing Meters at Goldmohor & Wallace flour mills were re-commisssioned after Sub Station relocation.  3 nos Check meters at Infinity towers & 2 nos Check meters at Eureka Towers were tested as a part of Energy Audit.  1 no meter each at Mafatlal & Vitrum were programmed for TOD tariff.  CTs were replaced due to load enhancement at Premier lighting, Gitco, Ion America, Mature trading & Oxford chambers.  Inspection of 100 nos ABT meters was carried out at Elster Daman factory.  Amresh Mishra attended 5 day course on "Power pilferage & detection" at ESCI, Hyderabad. ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 3 of 10 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

 Joint meter testing along with MSEB in Tromaby lab for three terminal Kalwa- Salette-Kalyan line.  MF verification carried out for TPC-D meters.  AMR activities- 1).GSM Modems are installed for six number TVMs at Pantheon,Prudential,Cap Gemini,Zenta and Marsek Infotech. 2) DCUs were installed in Enclosuers at Aditi, S.L.Maneklal,Center point,Shreeji industries and Premier chemicals. Permanent supply to DCU is being arranged at above sites with the help of concerned divisions.  MSEB data collection for calculating UI charges.  BEST, REL & RCF data collection for calculating the co-incident MD.

D. MAJOR OCCURRENCES & INVESTIGATION: -

DIVISION OCCURRENCES / INVESTIGATION Salsette R/S  29/11/2007, 110 kV PT 2 smoke came while charging, Diaphgram has burst further investigation is on. Dharavi R/S  12/11/2007, Trf # 5 tripped, Trf # 5 Tripped on Differential Protection, Fault on 22 kV cable Ambernath  8/11/07, 22 kV Wimco-1 O/C relay Target faulty, Relay Target flag adjusted R/S  21/11/07, NR-3 E/F relay spring found in out of shape, Relay replaced by spare one.  18/11/07, SAT-2 LT breaker failed to open electrically, Trip coil ckt found open due to Bhivpuri G/S dry soldering of series resistance.  23/11/07, Unit-11 Own breaker failed to close, GT side GOD contacts used in series of close command found defective. Chola R/S  19, 20 & 22/11/07, 25kV LA’s (04 no) bursting at C.Rly Tamal maad traction substation, Under investigation. Versova R/S  18 & 24/11/07, 90MVA Trf-1 Tripping on Differential protection during 33 kV Juhu-1 feeder fault, Aux CT is defective Carnac R/S  09/11/07, ND1 feeder tripped withour any relay action, There was actual fault but relay targets not appeared due to defect. Relays to be replaced.  02/11/07, Mankurd, 1250KVA Transformer at BARC Western Sector Transformer tripped with out any indication of relay action. Transformer tested ok. All relays trial operation tried ok. Control circuit megger ok. Oil DGA ok. Transformer was taken into service  12/11/07, Tata ISP, 1250KVA transformer of Consumer, Transformer tripped by moisture ingress into HT cable compartment. After consumer completed the work, transformer and test report inspected and cleared for service  17/11/07, Wockhardt, 2 MVA transformers LT breaker, CSR2 circuit one wire was found loose and ground connection found open. This was corrected and transformer taken into service. Distribution  18/11/07, Rangsharda, 630KVA transformer, Transformer tripped with out any indication of relay action. After checking for gas collection in buchholtz and meggering, transformer test charged ok and taken into service.  20/11/07, NSE, LT breakers, LT breakers of 1250KVA transformers were tripping intermittently on O/V or U/V relay action. Investigation and rectification in progress  23/11/07, Dehisar, 20MVA DT-1, Due to oil leak from HT bushing, oil from conservator got drained below buchholtz and transformer tripped on buchholtz. After filling oil and meggering, transformer was taken back into service.  26/11/07, Reservoir, 10MVA DT-2, RTCC was not functioning, attended ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 4 of 10 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

E. FAULTS / ABNORMALITIES DETECTED DURING DIAGNOSTIC TESTING:-

Total No of faults detected. : - 0 nos. DIVISION SIGNIFICANT DEFECTS DETECTED   

F. FACTORY INSPECTION /ACCEPTANCE TEST :-

Sr. FACTORY / EQUIPMENT & FINDINGS / LEARNINGS No. DIVISION

1. Trombay ALL attended Presentation on DCRM by SCOPE on 29/11/07.

2. Trombay GTJCommissioning of 110 kV HPCL # 3& 4 lines Relay panels (in progress)

TMK & PKK: Inspection of Protection panels of Mahalaxmi GIS on 23rd & 26th 3 SIEMENS, Kalwa Nov 2007. TMK: Attended LDIC presentation on PD couplers & PD detection for rotating 3 Machines, on 1st Nov and participated in further discussions on selection of PD couplers for the system. TMK: Meeting with ABB to finalise protection details for Trombay Unit-5 Gen 4 Trombay stn A protection panels, on 5, 6/11/07 TMK: Attended Global Compact committee meeting on 13 & 27/11/07 for 5 preparation of Progress report for 2007.

6 Delhi TMK: Attended CIGRE India Protection & Automation conference on 21,22/11/07

7 Carnac TMK, AM, SKP: Doble presentation on Relay testing on 30/11/07

G. COST SAVING :-

Relay Lab : Relay Lab : - Nil HV Lab: -

H: - COST OF POOR QUALITY / REWORK : NIL Division Description of poor quality / rework No. of man hours spent Kolshet STU meter commissioning due to defective cable put 32 Man Hours by L & T for meter auxiliary supply.. ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 5 of 10 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

I: - NDB PARAMETERS

New Different Better  110 kV KKS 2 line taken  22 kV Feeder Electromechanical o/c relay into service as three replaced by Numerical relays at Saki, terminal line Salsette, kolshet.  110 kV Lines Electromechanical Dir o/c relay replaced by Numerical relays at Saki.

J. MAN POWER DEVELOPMENT / ADMINISTRATION:-

 Mr G T Jawale Attended 4th Tata Group Young Leaders seminar at TMTC, Pune  Mr P K kachhawa attended One day Workshop on “Business writing skills” on 21/11/07 at Hotel Leela, Andheri, Mumbai.  Mr S S Dikay, Attended Doble power seminar at jaipur between 14/11 to 17/11/07. Presented a case study on 75 MVA transformer failures at Jojobera Power house. ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 6 of 10 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

II. ET & A SCADA SECTION

A: - PERFORMANCE INDICES

This month YTM- YTM- INDICES Nov ‘06 Target Nov ‘07 FY 08 prev. year Availability Index (%) Overall 99.65% 99.19% 99.76% 99.45% 99.6% T&D 99.56% LDC 98.8%

Occasions for which Date No of Hours Reasons and action taken system was manned 1. One instance – Control 05-11-2007 24 hrs New Connection from Versova & Malad / data of Versova was RTUs to LD AREVA SCADA was causing not available. the RTUs to fail. Presently the communication to LDC has been disconnected for investigation.

B: - COMMISSIONING & OTHER ACTIVITIES Station / Activity Equipment / Scheme Condition based Maintenance-status Back ups CBM Target for 2nd Trimester(Upto Nov 07) 50% 48.6% 66.66% CBM activity in CBM Activity completed for Borivali, Backbay, Parel Trombay ‘B’& Carnac. Nov ‘07 Modifications There were two calls for modification of Borivali SCADA database / mimic points. Project activities  Order has been placed for Mahalaxmi GIS & 22KV SCADA RTUs on AREVA, SCADA drawings for RTU General arrangement & equipment data sheets are being approved after due discussions.  Quotations have been received from various SCADA Vendors for Dharavi, Malad & Versova RTU replacements, they are being studied.  Order has been placed on Honeywell for upgradation of Bhivpuri & Khopoli Harris RTUs from D200 to D200ME with IP connectivity, Distribution Local testing of Distribution Automation RTUs ordered under Ph. IIB is under progress at Automation Saki & Borivali with the modems available. Visiontek modem is found suitable for Distribution Automation as an alternative to TATA Indicom modems. Commissioning-  Gateway configuration for Satellite stations is in progress. ABB Engineers are LDC SCADA configuring gateways for Carnac & Trombay SCADA. CA, PA & CI tasks Nil EPM process The SCADA Benchmarking data received from NDPL is being compiled & a meeting benchmarking is being arranged with REL as a second Benchmarking partner to discuss the SCADA maintenance process. ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 7 of 10 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

C: –MAJOR FAILURES, PROBLEMS & INVESTIGATION

Breakdown calls in Nov ‘07 Calls attended by Calls attended by Calls attended by TPC & TPC/In progress NELCO NELCO 26 13 9 4

Concern:

 Modems for Distribution Automation for the remaining Phases of commissioning & spares for the modems in service.

Manday Expert Advice from NELCO: 8 expert man days support was availed from NELCO for Borivali Reports configuration.

Reasons for delay in resolving the Breakdown Calls:

Call No Complaint Call Closed Station Name Reason for delay logged / Time of Occurrence EQA-08-0171 05-11-07 12:37:34 06-11-07 16:00:55 Load Hard Disk failed, Had to get it Despatch from Bhira Spares EQA-08-0172 05-11-07 23:57:06 07-11-07 08:43 Versova Problem was under investigation EQA-08-0173 05-11-07 23:59:37 07-11-07 08:47:40 Malad Problem was under investigation EQA-08-0175 08-11-07 19:46:34 12-11-07 10:44:07 Dharavi RTU1 had failed & Device downloading was required. EQA-08-0176 10-11-07 21:30 12-11-07 15:22 Dharavi RTU1 had failed & Device downloading was required. EQA-08-0188 22-11-07 13:32:36 25-11-07 16:00:15 Malad Spare PR2 card non -availability

D: - TRAINING / INSPECTIONS / DEPUTATION / SEMINARS / GENERAL TOPICS ETC.

 A three day training (22-11-07 to 24-11-07) on hardware & Software aspects of Distribution automation was conducted by ABB at Dharavi CCR. Ms. Deepa Joshi, Mr. Varun Thakur & Mr. Aditya Sainath from SCADA group attended the same along with 3 other Engrs. From division.  Ms. Deepa Joshi attended a two day tutorial on IEC 61850 conducted by CBIP at Delhi on 19th and 20th Nov ‘07

DATE: 04-11-07 Sr. Mgr (SCADA) ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 8 of 10 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

III. ET & A COMMUNICATION SECTION.

MONTH & YEAR – November 2007

1. COMMUNICATION AVAILABILITY:-

November November YTM FY YTM FY Target for Communication 07 (%) 06 (%) 2008 2007 the FY 2008 System Indices Protection Channels 100 100 99.94 99.91 99.9 Data channels 100 99.90 99.93 99.40 98.0 Voice system 100 98.3 99.93 99.28 99.0 % availability = Total number of service hrs. in a month (30x24x No. of services) - Aggregate down time X 100 Total number of service hrs. in a month (30x24x No. of services) 2. MAJOR INVESTIGATION & OCCURRENCES: -

Date Division / OCCURRENCES / INVESTIGATION Down Time Station Nil Jobs that had taken more time than the standard time

Date Division/ Station System / Channels affected Down Time Nil

3. BREAKDOWN MAINTENANCE ACTIVITIES : -

Date Division Description Resolution time Nil

4. COMMISSIONING / PROJECT ACTIVITIES : -

Date Division Description Commissioning 01/11/2007 Salsette, Kalwa, Commissioned Three terminal line protection for KKS Kalyan 02/11/2007 Trombay Configuration done for AREVA SCADA router for Dharavi server and subsequently configured switches at Trombay, and Dharavi 15/11/2007 HPCL Established fibre connectivity between Trombay – A and HPCL 17/11/2007 TVK Programmed and commissioned new extensions at TVK for SED group 22/11/2007 Backbay Programmed and commissioned new extensions at Backbay

Planning & Designing 05/11/07 Dharavi Meeting with Engineering for TPCD metering scheme ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 9 of 10 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

24/11/07 Salsette Meeting with Engineering, Salsette Div, Transmission for bay shifting jobs at Salsette 20/11/07 BKC Tested new CDMA router and new CDMA modem for DAS

5. RETROFITTING JOBS: -

Date Division Description Nil

6. Condition based maintenance (April 2007- March 2008)

CBM indices YTD YTD Target Target for the Completion FY 2008 Percentage (%) 12.5% 66 % 100 Location completed Carnac, Grant Road, Mahalaxmi

7. ADMINISTRATION AND MAN POWER DEVELOPMENT.

Date Name Description Nil

8. COST OF REWORK FOR POOR QUALITY OF RECEIVED MATERIAL EQUIPMENT

Nil

AGM(ET&A)

SKP:JDS ELECTRICAL TESTING AND AUTOMATION DIVISION Page No. 10 of 10 MONTHLY ACTIVITY REPORT MONTH: November YEAR: 2007

Station Wise Diagnostic testing Index 2007 - 2008

Sr. No. Station Diagnostic Testing indices Equipment Protection Overall

(%) (%) (%)

1 Ambernath 30 42 38 2 Backbay-Tata 42 55 53 3 Bhira 0 13 8 4 Bhivpuri 21 20 20 5 Borivli 25 41 36 6 Carnac 54 54 54 7 Chembur 9 5 6 8 Chola 0 29 20 9 Dharavi 69 56 58 10 Grant Road 0 83 79 11 Kalyan 21 55 46 12 Khopoli 31 64 53 13 Kundli 0 0 0 14 Kolshet 100 100 100 15 Mahalaxmi 53 43 45 16 Malad 5 60 46 17 Mankhurd 21 64 52 18 Panvel 13 63 38 19 Parel 30 55 50 20 Saki 100 89 92 21 Salsette 28 79 68 22 Trombay-A 20 37 33 23 Trombay-B 10 10 10 24 Versova 25 49 45 25 Vikhroli 16 40 33 26 Consumer-Saki 33 48 47 Consumer- 27 Salsette 0 0 0 Consumer- 28 Borivli 50 49 49 29 Dist.+BKC+BMC 60 51 52

Total 25 41 37

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