MADHYA PRADESH POWER TRANSMISSION COMPANY LIMITED STATE LOAD DESPATCH CENTRE, NAYAGAON, RAMPUR, JABALPUR

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1 MADHYA PRADESH POWER TRANSMISSION COMPANY LIMITED STATE LOAD DESPATCH CENTRE, NAYAGAON, RAMPUR, JABALPUR Telephone: (0761) Fax: (0761) / Corporate office: Madhya Pradesh Power Transmission Co. Ltd., Block No.2, Shakti Bhawan, Rampur, Jabalpur , CIN-U40109MP2001SGC014880, -mdtransco.nic.co.in No.07-05/SG-9B-II/146 Jabalpur, dated: To As per distribution list Sub: Minutes of 67 th meeting of Operation and Coordination Committee of MP. The Minutes of 67 th meeting of the Operation and Coordination Committee of MP held on 04 th January 2019 at Conference Hall, SLDC, MPPTCL, Nayagaon, Jabalpur has been uploaded on the website of SLDC and can be downloaded. (R.A. Sharma) Member Secretary, OCC SLDC, MPPTCL, Jabalpur

2 Distribution List 1. The Chief Engineer (Works), MP Power Transmission Co. Limited, Shakti Bhawan, Jabalpur, 2. The Chief Engineer (T&C), MP Power Transmission Co. Limited, Jabalpur. Fax No , The Chief Engineer (Transmission-East Zone), MP Power Transmission Co. Limited, Shakti Bhawan, Jabalpur. 4. The Chief Engineer (Transmission-West Zone), MP Power Transmission Co. Limited, Indore. 5. The Chief Engineer (Transmission-Central Zone), MP Power Transmission Co. Limited, Bijlee Nagar, Govindpura, Bhopal, The Chief Engineer (Plg & Des), MP Power Transmission Co. Limited, Jabalpur, Fax No The Chief Engineer (Procurement.), MP Power Transmission Co. Limited, Jabalpur,.Fax No The Chief Engineer(EHT:Const.), MP Power Transmission Co. Limited, Jabalpur. Fax , 9. The Chief Engineer(EHT:Maint&insp.), MP Power Transmission Co. Limited, Jabalpur. Fax , 10. The Executive Director (O & M:Gen), MP Power Generating Company Limited, Jabalpur. Fax No , The Chief Engineer (O&M:Hydel), MP Power Generating Co. Ltd, Jabalpur, Fax No The General Manager(PM), MPPMCL, Jabalpur 13. The Superintending Engineer (GCC), MPPGCL, Jabalpur 14. The General Manger (DCC-EZ), DISCOM Control Centre, MP Poorva Kshetra Vidyut Vitaran Co.Limited, Jabalpur, Fax No , 15. The Dy. General Manager (DCC CZ), DISCOM Control Centre, MP Madhya Kshetra Vidyut Vitaran Co. Limited, Bhopal, Fax No , The Executive Engineer (DCC-WZ), DISCOM Control Centre, MP Paschim Kshetra Vidyut Vitaran Co. Limited, Near Polo Ground, Jail Road, Indore, Fax No , The Executive Engineer, Sub Load Despatch Centre, MPPTCL, Indore, Fax No , 18. The Executive Engineer, Sub Load Despatch Centre, MPPTCL, Bhopal, Fax No , 19. The General Manger(RO), MPPMCL, In front of Bhojpur Club, E-4, Arera Colony,Bhopal, Fax No , 20. The Chief Engineer (PM&C), Narmada Hydroelectric Development Corpn. Ltd, NHDC Parisar, Shamla Hills, Bhopal , Fax No , 21. The Chief Electrical Distribution Engineer, West Central Railway (WCR), General Manager s Office, Electrical Department, Jabalpur (MP), Fax: , - cede@wcr.gov.in, dyceetrdwcr@gmail.com, M , Mr.Satyendra Kumar (Dy.CE), Mob (CEDE, WCR). 22. The General Manager, Indira Sagar Power Station, NHDC Office complex, PO : Narmada Nagar, Distt : Khandwa (MP) , Fax No , nhdc-isp@rediffmail.com 23. The General Manager, Omkareshwar Power Station, Prashsnik Bhawan, Urja Vihar, Sidhwarkut, Distt : Khandwa (MP) , FaxNo , - pksaxena@nhdcl.com, saxena_pks123@rediffmail.com, omkareshwar.nhdc@gmail.com. 24. The Director (Projects), BLA Power Limited, At : Niwari, PO: Khorsipan, Tah : Gadarwara, Distt ; Narsinghpur , Fax No / , manish@bla.co.in 25. The Sr. Vice President, Jaiprakash Power Ventures Ltd., Village Sirchopi Subpost Office-Agasod, Post Office-Bina Distt- Sagar, Fax No , jbtppbina400kvswitchyard@gmail.com jptpp.switchyard@jalindia.co.in, 26. The Chief Executive Officer, Kalpataru Satpura Transco Pvt. Ltd., Satpura Colony, Betul Road, Old Itarsi, Distt. Hoshangabad, cbhandari@kalpatarupower.com 27. M/s Ujaas Energy Ltd. 701, NRK Business park, Vijay Nagar Sqaure, Indore , id :-solar@ujaas.com 28. M/s Suzlon Global Services Ltd., 1090, Scheme no. 114, Park-2, Ring Road, Universal Hospital Row, - deepesh.sankwa@suzlon.com, Indore , Badree.hirve@suzlon.com

3 MINUTES FOR 67 TH MEETING OF OPERATION & COORDINATION COMMITTEE OF MP HELD ON 04 th JANUARY 2019 AT 11:00 AM AT CONFERENCE HALL, SLDC, MPPTCL, NAYAGAON, JABALPUR. The 67th meeting of Operation & Coordination Committee of MP was held on 04 th January 2019 at 11:00 AM at SLDC, MPPTCL, Nayagaon, Jabalpur. The list of participants is enclosed at Annexure Shri K.K.Parbhakar C.E.(SLDC) & Chairman OCC welcomed all the guests & participants for 67 th OCCM of MP. Chairman OCC stated that the demand trend has slightly changed compared to previous years. In the peak demand was met in the month of December and by January the demand starts decreasing whereas this year in January-19 the demand is in increasing trend and Maximum Demand is being met in January for There is an increase of 3032 MW in demand compared to previous year and till date maximum demand met is 13988MW. He has also mentioned that the energy supply is 17% more in this year. He emphasized that it has been possible to fulfill this demand with the cooperation of all stockholders, MPPTCL, MPPGCL, NHDC & JP BIna. He further underlined that the same support & cooperation are expected all entities in upcoming days as demand is expected to increase further till mid of January 2019, therefore the outage of any units is not warranted during this period. Chairman OCC further stated that the new DSM Regulation is implemented from 1 st January 2019, wherein sign reversal of deviation is to be done after every 6 th time block by each entity, failure to which will cause a heavy penalty of 20% of the base DSM of the concerned entity. He informed that the generating company can regulate its generation and can comply with the regulation for sign reversal but it is difficult for Discoms to reverse its sign after every 6 th time block as they do not have any variable/controllable quantum and will be liable to pay a heavy penalty. Hence Discoms shall take up the matter with MPPMCL and shall vary their schedule in coordination with MPPMCL.. Thereafter he requested Member Secretary to take up the agenda points. Shri R.A.Sharma Member Secretary OCC & Addl. Chief Engineer, SLDC welcomed all the guests and participants for 67 th OCCM and requested all the participants for formal introduction. He informed the committee that recently in a meeting, Hon. Energy Minister of GOMP, has instructed to ensure uninterrupted supply to consumer along with quality supply i.e., to provide consumer supply 24X7 with proper voltage and adequate power to Agriculture consumer.. The Discoms and MPPTCL has been requested to provide adequate capacity of capacitor banks in low voltage pockets. Thereafter the agenda points were taken up which are narrated here under: - ITEM NO. 1 : CONFIRMATION OF MINUTES : Minutes of 66 th meeting of Operation & Coordination Committee of MP held on 17 th November 2018 at SLDC, MPPTCL, Jabalpur were forwarded to the committee members vide No /SG-9B-II/3786 Jabalpur dated No comments have been received. [OCC may confirm the minutes] ITEM NO.2: REVIEW OF SYSTEM OPERATION DURING THE MONTHS OCTOBER 2018 TO NOVEMBER Frequency Particulars: The committee was apprised that during October 2018 the system frequency was below Hz for 12.05% of time against 10.92% of time during November The system frequency was above Hz for 8.75 % of time during October 2018 against 9.21 % of time during November The system frequency was within the IEGC range of Hz for % of the time during October 2018 against % of time during November The average monthly frequency was Hz during month of October 2018 and Hz during month of November The detailed frequency particulars for the month of October 2018 and November 2018 are enclosed at Annexure-2.1. The brief detail of frequency profile is given here under:- Minutes of 67th OCCM of MP 1

4 Month Average frequency Minimum Integrated frequency over an hour Maximum integrated frequency over an hour Instantaneous Minimum Frequency Instantaneous Maximum Frequency OCTOBER Hz Hz Hz Hz Hz NOVEMBER Hz Hz Hz Hz Hz Member Secretary OCC informed the committee that the new frequency band for DSM framework is Hz. applicable from 1st January 2019 as per CERC DSM Regulation Operational Matters Operational Discipline : The committee was apprised that the system operation in terms of frequency profile for the months OCTOBER 2018 and NOVEMBER 2018 is as given below for discussion by the committee : Month OCTOBER 2018 NOVEMBER 2018 % of time Frequency Below Hz % of time Frequency above Hz % of time frequency within the permissible range of Hz. Average monthly frequency 12.05% 8.75% 79.20% Hz 10.92% 9.21% 79.87% Hz Voltage Profile: The committee was apprised that during the months OCTOBER 2018 and NOVEMBER 2018 the maximum and minimum voltage as recorded at following important 400 KV s/s in MP Grid:- Sr. No. Name of 400 KV Substation OCTOBER 2018 NOVEMBER 2018 Max. Voltage Min. Voltage Max. Voltage Min. Voltage Observed Observed Observed Observed Voltage KV Date Voltage KV Date Voltage KV Date Voltage KV Date 1 Indore Itarsi Bina Gwalior Nagda Satpura Birsinghpur ISP Bhopal Ashta Pithampur Minutes of 67th OCCM of MP 2

5 12 Singhaji Member Secretary OCC stated that the low voltages were observed in Indore, Pithampur & Ashta area. The Generators were requested to provide requisite MVAR support in order to maintain voltage Status of Capacitor Banks in sub-transmission system: The committee was apprised about the updated information of the status of capacitor banks in sub-transmission system as on 31 th NOVEMBER 2018 as submitted by DISCOMs is detailed below: DISCOM Capacitor bank Capacitor installed in good Banks healthy condition (No) but not in service due to control ckt problem KVAR KVAR KVAR Capacitor bank Require Requiremen Capacitor Balance installed but ment of t against banks already capacitor defective & are repair nonrepairable covered under banks to be repairable (No) against each capacitor ADB T-V covered in other unit (No) banks schemes No of KVA R KVA R KVA KVAR KVAR KVAR R KVAR Units KVAR KVAR KVAR KVAR KVAR KVAR required EZ CZ WZ It is pointed out that Central Discom is being not furnishing data as per prescribed format and the Capacitor Banks healthy but not in service due to control ckt problem have not been included in the details submitted by Central Discom. Member Secretary OCC stated that Discoms shall provide information of minimum voltage reached and the low voltage pockets identified at distribution level so that planning at EHV level could be done accordingly and needed remedial steps could be ensured Status of Shunt Capacitor Banks installed at various EHV Transmission Substation: : The committee was apprised about the updated information of the status of installed capacitor banks (in MVAR) in EHV transmission system as on as submitted by MPPTCL is given below:- Voltage Capacitor bank Capacity Added Capacitor banks TOTAL Capacitor Bank Class installed as on after Last OCC already covered CAPACITY AS Installed but (MVAR) Meeting (MVAR) under ADB T-V ON defective & are not (MVAR) repairable (No & MVAR) 220 KV All in Service 132 KV KV Total The committee has noted the same. Minutes of 67th OCCM of MP 3

6 2.2.5 Status of completion of ongoing Transmission Schemes being executed by MPPTCL: : The committee was apprised about the various ongoing Transmission Schemes completed during the financial year (up to NOVEMBER 2018) and plan for completion of various ongoing Transmission Schemes for the Year is enclosed as Annexure 2.2.5(i) and 2.2.5(ii) respectively U/F and df/dt Relay Operation (i) (ii) U/F and df/dt Relay Operation: : The committee was informed that the frequency did not touch Hz during OCTOBER 2018 and NOVEMBER There was no df/dt operation during the same period. Defective u/f, df/dt relays: : The committee was apprised that MPPTCL has informed that all the df/dt and U/F relays are in operation, where the U/F relays are not available, the numerical relays programmed for under frequency operation. Defective df/dt relay at 220KV Sagar & 220KV S/S Chhatarpur have been replaced & at 132KV S/S Chapda the df/dt protection is provided through df/dt feature of DPR. All U/F stages are in good/ healthy & working condition. 2.3 Power Cuts / Load restrictions/differential Load Shedding by DISCOMS & group allocation to 33 KV feeders: (i) The committee was apprised about the details of DISCOM wise Power supply given to various domestic categories during the period OCTOBER 2018 and NOVEMBER 2018 is enclosed at Annexure 2.3(i). Member Secretary OCC informed the committee as directed by Hon. Energy Minister of MP, the Supply Hours for Agriculture should be at least 10 Hrs. & other than Agriculture supply should be 24 Hrs. Hence all the Discoms are requested to ensure the supply hours to consumers along with quality of supply as per directives of Govt. of MP. (ii) Group Allocation to Newly Commissioned existing EHV substations:- The committee was apprised about the region wise list of 33 KV feeders emanating from various newly commissioned/existing EHV substations for which groups have not been allocated is given in Annexure 2.3 (ii). The DISCOM wise details of pending group allocation to 33 KV feeders is given below:- SN DISCOM Region No of 33 KV feeders for which groups to be allocated 01 Jabalpur Sagar 00 EAST 03 Rewa Total Indore WEST Ujjain Total Bhopal CENTRAL Gwalior Total 21 TOTAL Grand Total 38 Minutes of 67th OCCM of MP 4

7 Representative from East Discom informed the committee that the 02 no. 33 KV feeders in Jabalpur region have been allocated group & the group allocation for 01 no. 33KV feeder is under process and will be done at the earliest. Representative from West Discom informed the committee that the group allocation for 33KV Mittal Corp-2 feeder has been done and the proposal for group allocation of 09 no. 33 KV feeders in Indore Region & 01 no. 33 KV feeder in Ujjain region is under final stage. Representative from Central Discom informed the committee that the efforts are being made to expedite the process of group allocation of 33 KV feeders and shall be completed within a month. ITEM NO. 3 : OPERATIONAL PLANNNING: 3.1 Generating Units under planned outage and proposed maintenance programme: The committee was apprised about the annual maintenance /outages of thermal generating units of MPPGCL during December 2018 to January 2019 is NIL as intimated by ED(O&M:Gen.).The details of hydel unit planned outage was submitted by representative from (O&M:Hydel), MPPGCL in the meeting. 3.2 Proposed shutdown programme of Transmission lines / Transformers: The committee was apprised about the proposed shutdown of transmission elements for the period to submitted by MPPTCL is enclosed as Annexure-3.2. [Committee May like to discuss] 3.3 Long Outages of transmission elements and protections: The status submitted by MPPGCL /MPPTCL are given below:- Sr. Line/Transformer/ etc Outage date Reason Response from Utility No under long Outage 1. 16MVA BBL make X mer at 132KV S/S Berasiya X mer tripped on Differential & Buchholz Trip Indications MPPTCL informed that X mer is declared faulty & replacement is expected in Jan MVA EMCO X mer at 132KV S/S Chicholi Tripped on Buchholz trip indications. X mer replaced by another 20MVA transformer on dt UAT-7B, STPS, Sarni Differential relay & bucholz relay operated. Order placed to M/s Shree Abirami Engineering works Chennai, Tamil Nadu on dtd MPPGCL informed the committee that work is under progress and will be in service at the earliest MVA, 400/220 KV X mer at STPS X mer tripped at 21:55 Hrs. due to LA Burst. Emergency shutdown taken for 15 days from to for CPRI oil filtering and RLA testing work. MPPGCL informed that Owing to adverse report of RLA conducted on ICT during shutdown, proposal for permanent discontinuation of ICT from service has been submitted. Chairman OCC stated that the matter is under dispute, as MPPTCL has shown reluctance for decommissioning of ICT looking to Minutes of 67th OCCM of MP 5

8 system constrain and proposed to commission GIS at STPS with 500 MVA ICT in service in review meeting of Energy department. Therefore MPPGCL & MPPTCL shall discuss the matter with each other and resolve the matter at the earliest & intimate to SLDC MVAR (Make GE) Line Reactor at 400KV Sarni- Asta Ckt-I Under outage since due to concentration of Acetylene gas. DGA test of transformer oil of reactor was carried out by M/s CPRI, Bhopal. To carry out the internal inspection of reactor, NIT will be opened on 15th September 2018 and certain queries on techno commercial issues have been sought from M/s GE(T&D) India (OEM). Price bid opened on 5 th December 2018 and under security. Any transmission element/ EHV element under outage, which has not been intimated/included under aforesaid outage list, should be invariably intimated to SLDC. All entities are requested to ensure the same. The matter was discussed in the meeting. ITEM NO. 4 : OPERATIONAL STATISTICS FOR THE MONTH OF OCTOBER 2018 AND NOVEMBER 2018: The committee was apprised about the details of actual generation, Schedule from Central Sector, demand etc. are given in the following Annexures: Annex. 4.1 Annex. 4.2.i Unit wise actual Generation of MPPGCL thermal Units and station wise Generation of MPPGCL & NHDC Hydel Units. Power Supply Position(Energy Balance Sheet). 4.2.ii. Power Supply Position Scenario:- The matter was discussed in the meeting and the committee was briefed the Generation, Demand management scenario in moth of Oct & Nov 19 POWER SUPPLY POSITION FOR THE MONTH : Oct 18 Particulars Max Dem Met on : 31-Oct-18 AT : Average Oct Average Oct Average Oct All Fig in MW Average Monthly STATE PEAK DEMAND MET BREAKUP :- Total Energy (LU) STATE THERMAL (Actual Gen) STATE THERMAL (RSD) Total MW STATE HYDEL IPP (STATE) Minutes of 67th OCCM of MP 6

9 CENTRAL SECTOR (Schedule) CENTRAL SECTOR (Surrender) IPP (INTER STATE) RAILWAY RENEWABLE ENERGY OTHERS BANKING / PURCHASE / SALE DEVIATION DEVIATION (AVERAGE) 206 Between (-648 to 772) Between (-834 to 414) Between (-802 to 579) Between (-834 to 772) ENERGY SUPPLY STATE (LU) POWER SUPPLY POSITION FOR THE MONTH : Nov 18 Particulars Max Dem Met on : 27-Nov-18 AT : Average Nov Average Nov Average Nov All Fig in MW Average Monthly STATE PEAK DEMAND MET BREAKUP :- Total Energy (LU) STATE THERMAL (Actual Gen) STATE THERMAL (RSD) Total MW STATE HYDEL IPP (STATE) CENTRAL SECTOR (Schedule) CENTRAL SECTOR (Surrender) IPP (INTER STATE) RAILWAY RENEWABLE ENERGY OTHERS BANKING / PURCHASE / SALE DEVIATION DEVIATION (AVERAGE) -72 Between (-727 to 544) Between (-781 to 477) Between (-904 to 510) Between (-904 to 544) ENERGY SUPPLY STATE (LU) Minutes of 67th OCCM of MP 7

10 ITEM NO. 5 : SYSTEM DISTURBANCE IN MP DURING OF OCTOBER 2018 AND NOVEMBER 2018: The committee was apprised about the Grid Disturbances and Grid Incidents in MP during these months are given in Annexure 5. ITEM NO.6 : IMPORTANT OPERATIONAL ISSUES:- 6.1 STATUS OF COMPLETION OF ONGOING SCHEMES FOR COMMISSIONING OF REACTORS / TRANSMISSION ELEMENTS:- The committee was apprised about the present status regarding schedule and commissioning of reactors / transmission elements is as below:- S.No. 400 KV S/s Size MVAR 1. Bus Reactor : ISP 2. Line Reactor on 400 kv Sapura ISP line at STPS 3. Bus Reactor at SSTPS Implementing Agency 125 MVAR NHDC 50 MVAR MPPGCL 125 MVAR MPPGCL Expected Date of Commissioning as intimated in last OCC Bus reactor test charged on However for final charging telemetry compliance required to be completed. In 66 th OCC ISP informed the committee that the reactor cannot be configured in the existing RTU as the RTU is of old configuration, hence purchase of new RTU is being processed. In the multifunction meter is under repair thereafter the existing RTU can be used to integrate telemetry. NHDC is requested to provide the expected date of commissioning. In 66 th OCC MPPGCL informed that the price bid has to be opened and the reactor will be commissioned by June Chairman OCC stated that MPPGCL shall install the reactor on priority basis due to system requirement. Work will be carried out under PSDF as intimated by MPPGCL in 62 nd OCC in 66 th OCC MPPGCL informed the committee that the drawing has been approved and reactor is expected to be commissioned by March Chairman OCC stated that MPPGCL shall install the reactor on priority basis due to system requirement. The matter was discussed in the meeting. 6.2 GENERATOR DATA SHEET OF SINGHAJI TPS UNIT # 1, 2, 3 & 4:- The committee was apprised that as per clause 11, 12, 13 of Manual on Transmission Planning Criteria Of CEA the generator data is required for modeling the generators for simulation studies. It is also to mention that due to integration of RE Generators in the grid & its variable generation for which the precise simulation studies have Minutes of 67th OCCM of MP 8

11 to be done for proper grid management. Further vide dtd & Singhat TPS was requested to submit the generator data of Singhaji TPS Unit #1,2,3&4 including following details:- 1. Generator Datasheet provided by OEM for all the units (to model generator). 2. Technical Datasheet of the Generator transformers for Unit-1,2,3,4. 3. Open circuit magnetization curve/open circuit and short circuit test results performed during the commissioning (for validation of system study model at our end), type of saturation to be provided. 4. Excitation systema. Type of excitation system its block diagram(transfer function) and adopted parameters (commissioning report for model validation) b. PSS- Block diagram(transfer function) and its adopted parameter, commissioning report( to validate the model). 5. Turbine Governor systema. Turbine and Governor system datasheet. b. Block diagram(transfer function) of Turbine governor system and its parameters (commissioning report for model validation). The committee was informed that despite of several & telephonic conversations made with Singhaji TPS, the above data has not been furnished to SLDC/WRLDC. Hence seeing to the security of the grid the modeling of generators for precise simulation studies has to be done, therefore Singhaji TPS, MPPGCL is requested to comply with CEA regulations and kindly furnish the required details for modeling of generators for simulatuion studies at the earliest to this office for further submission to WRLDC. The matter was discussed and representative from MPPGCL informed that the data will be provided at the earliest. 6.3 ABNORMAL DELAY IN CONVEYING TRIPPING DETAILS TO SLDC CONSEQUENT UPON TRIPPING OF 63 MVA 132/33KV TRANSFORMER AT MANSAKRA SUB STATION: The committee was apprised that 63MVA, 132/33KV transformer at 132 KV S/s Mansakra tripped on at 08:25 hrs on buchholz indication. The tripping details were conveyed to SLDC at 13:11 hrs, approximately laps of five hours of incidence took place. As per provisions of Grid Code, keeping the EHV elements out of service without knowledge of SLDC is violation of Grid Code. More over whenever such incidence of tripping took place, it should have intimated to SLDC immediately. It is therefore requested that report on the matter may be furnished to the SLDC and concerned officials may please be instructed suitably to avoid reoccurrence of such incidence and strictly adhered with grid code. The matter was discussed in the meeting and Representative from T&C ensured that suitable instructions have been issued to concerned officials and such incidences shall not be repeated in future. During discussion, another similar case was pointed out and committee was apprised that on Pench HPS took outage on one of the units and stopped the unit without obtaining code from SLDC. Such incidents should not be repeated to avoid threat to grid security and officials shall be suitably instructed to avoid such reoccurrence. Minutes of 67th OCCM of MP 9

12 6.4 THREE HOURS AND 33 MINUTE INTERRUPTION TO BIRSINGHPUR & UMARIYA SUBSTATION DUE TO TRIPPING OF 220/132 KV TRANSFORMER AT 220 KV S/s BIRSINGHPUR (PALI):- The committee was apprised that on dtd at 06:40 hrs 160MVA 220/132 KV transformer EMCO make tripped on OSR indication, this caused total interruption to Birsinghpur(Pali) and Umariya substation. As reported in flash report, the reason of operation of OSR relay indicated therein, is low oil level in the transformer due to oil leakage. In this context, it is desired that the remedial measures taken for avoiding reoccurrence of such incidence may please be appraised to SLDC. The detailed report of tripping was also soughed from T&C. 6.5 PROTECTION AUDIT OF HYDEL POWER STATIONS OF MPPGCL:- The committee was apprised that MPPGCL vide letter No /601-PSDF, dtd 21/02/2018 has conveyed that protection audit of switchyard associated with 10 hydro power plants of MPPGCL is required to be carried out by WRPC. Further, it was decided that work or protection audit of all switchyard carried by a team constituted by WRPC accordingly nominations were invited from utilities for protection audit team. Vide this office dtd the name of officers from MPPTCL, NHDC and MPPGCL was conveyed to WRPC. MPPGCL is insisting for early completion of aforesaid protection audit, considering provisions of MOM of TESG meeting of PSDF regarding the observations for PSDF grant on MPPGCL proposal in 37th meeting held on As a sequel to above, SE (Protection), WRPC has intimated that looking to difficulties at WRPC level to constitute a committee for aforesaid work, it has been directed that committee may be constituted MP- SLDC. However, detailed programme for Protection Audit to be carried out be intimated to WRPC, so that WRPC may depute one member from WRPC their end. MPPGCL is therefore requested to furnish detailed programme for conducting Protection Audit along with data required in this regard as requested by WRPC earlier, so that proposed Protection Audit could be carried out. It is mentioned that the matter has been discussed in 66th Meeting of OCCM, thereafter the matter has been perused with C.E. (Hydel), however requisite details of Hydel Power Station of MPPGCL have not been provided yet. Therefore, the Protection Audit Activities still could not initiate further. The matter may please be expedited and needed information be provided to SLDC without further delay. Representative from MPPGCL ensured that the desired details will be submitted at the earliest. 6.6 REAL TIME OPERATIONAL DIFFICULTIES DUE TO NON AVAILABILITY OF TELEMETRY DATA OF ISP HPS UNIT#2:- The committee was apprised that the telemetry of ISP HPS Unit #2 is out since long. The matter has been persuaded number of times with ISP Authority, however the telemetry of Unit # 2 has not been made available, this cause lot of difficulties in real time operation of system. It is therefore desired that telemetry of above unit may be rectified and made available immediately. Member Secretary OCC stated that telemetry availability is a regulatory requirement and ISP shall ensure the telemetry of ISP Unit#2 as SLDC will be liable to put the unit under outage in case of non availability of telemetry. Minutes of 67th OCCM of MP 10

13 6.7 MODIFICATION/SHIFTING OF 220 KV SUKHI-SEVANIA-ASHTA LINE FROM LOC. NO. 87 TO 90 FOR LOWERING DOWN THE LINE FOR MAINTAINING CLEARANCE BETWEEN THE E/W OF 220 KV LINE WITH BOTTOM CONDUCTOR OF NEWLY CONSTRUCTED 765 KV BHOPAL-INDORE S/C LINE OF M/S BHOPAL DHULE TRANSMISSION CO. LTD. (M/S AS BDTCL) UNDER CONSUMER CONTRIBUTION WORK: The committee was apprised that MPPTCL has conveyed approval for crossing of 765 KV Bhopal- Indore S/C line with various transmission lines of MPPTCL vide letter No /B-3132/P&D-TLD/389 dated based on the proposal and profile submitted by M/s Bhopal Dhule Transmission Co Ltd. However, after completion of erection work, BDTCL has observed that the electrical clearance of 765 KV line with 220 KV SukhiSevania-Ashta line between location No. 87 to 90 was not adequate. It had probably happened due to negligence workmanship as line was not erected exactly as per provisions of profile. Thereafter the BDTCL has submitted their request to MPPTCL vide letter dated wherein request was made for modification / shifting of 220 KV SukhiSevania-Ashta line (crossing loc. No. 88 & 89) in order to maintain adequate electrical clearance along with consent for bearing the cost of work. Based on the request of M/s BDTCL, looking to target date ofcharging of 765 KV Bhopal Indore Single ckt line an agreement between MPPTCL and BDTL was executed and MPPTCL has accorded permission for lowering down the E/W of 220 KV line as a special case as an interim arrangement till 220 KV line is modified or shifted. After lapse of about 2 years, M/s BDTCL has not undertaken the required modification/ shifting work, evenafter persisting pursuance at different level.the E/W of 220 KV line is still in lowered position due to which the conductors are unprotected against lightening. Moreover, in case of snapping of conductor of 765 KV on 220 KV line would initiate serious fault. In above scenario, it is felt that BDTCL may be advised to complete modification/ shifting work of 220 KV SukhiSevania- Astha line immediately under consumer contribution as per mutual agreement looking to protection issue of 220 KV SukhiSevania-Ashta line. Representative from EHT-M&I informed the committee that BDTCL has submitted the amount for supervision work and also hired a consultant who has visited the site. Further the proposal by consultant for work to be done has been put up to P&D, MPPTCL for approval. Member Secretary OCC stated that EHT-M&I and P&D, MPPTCL shall take up the matter with BDTCL and expedite the work. 6.8 LOAD DROPPING SCHEME AT 400KV & 220 KV SUBSTATIONS TO HANDLE EMERGENCY CONDITION: - The committee was apprised that on dtd at 09:55 Hrs. 160MVA 220/120 KV X mer no-2 at 220 CT No.-II at 220 KV S/s Malanpur tripped on on PRV indication due to cable fault. Consequently following X mers and circuits also tripped:- S.NO ELEMENT NAME INDICATION TRIPPING TIME MVA X MER 1 at 220 KV S/s Malanpur MVA X mer-1 at 220 KV S/s Mehgaon MVA X mer-2 at 220 KV S/s Mehgaon. 132 KV side tripped due to over loading. O/C O/C 09:55 Hrs. 09:55 Hrs. 09:55 Hrs. Minutes of 67th OCCM of MP 11

14 4 160 MVA X mer at 220 O/C, E/F 09:55 Hrs. KV S/s Morena KV Banmore O/C from Banmore end. 09:55 Hrs. Motijheel Ckt KV Banmore O/C from Banmore end. 09:55 Hrs. Motijheel Ckt - 2 Due to above tripping interruption occurred at 15 no. sub stations causing the load loss of about 615 MW as detailed below: KV Malanpur KV S/s Morena KV S/s Mehgaon KVS/s Bhind KV S/s Seondha KV S/s Lahar KV S/s Ron KV S/s Porsa KV S/s Pratpura KV S/s Barnmore KV S/s Ambah KV S/s Morar KV S/s Gohad KV S/s Morena KV S/s Badgaon Dimni KV Hitampur Railway Traction. In view of above it becomes necessary that in every 400KV & 220KV substation, load dropping scheme invariably made functional so that in case of any emergency situation under N-1 condition, the loading on ICT should not crossed dangerous level. It is gathered that the existing load drop scheme at 220 KV S/s Malanpur is provided on 220 KV Malanpur Gwalior(PG) Ckt- I & II and does not cover the 160 MVA, 220/132 KV X mer I & II at 220 KV S/s Malanpur. Therefore to avoid overload tripping of transmission elements at Malanpur, Mehgaon & Morena it is proposed to review the load drop scheme installed at at these sub stations. However, if load dropping scheme have not been made, so far, it is requested to formulate suitable load dropping scheme to handle sudden emergency as elaborated above in Gwalior area & as well as other important nodes of MP Grid. The Committee may discuss the matter. Representative from MPPTCL informed the committee that the load dropping scheme has been revised and implemented on 160 MVA, 220/132 KV X mer-i & II along with the 220 KB Malanpur Gwalior Ckt- I & II and 132 KV Badagaon Ckt, 132 KV Gohad Ckt-I&II and 132 KV Mehgaon Ckt has been included in the revised load drop scheme. Member Secretary OCC requested MPPTCL to provide the updated status of load dropping scheme installed at MPPTCL substations. 6.9 INSPECTION OF RELAYS OF AUTOMATIC UNDER FREQUENCY LOAD SHEDDING AND CERTIFICATION THEREOF: - The committee was apprised that it is desired that for safe & secure operation of integrated system, the under-frequency relay should be connected in the system in healthy condition. Accordingly, WRPC is pressing hard to provide the self-certified status of Minutes of 67th OCCM of MP 12

15 healthiness of relays of Automatic Under Frequency Load Shedding (AUFLS) and periodic checking of the same. Vide this office various correspondence. The CE (T&C) and also SE(T&Cs) were requested to provide status of healthiness of relays of Automatic Under Frequency Load Shedding on priority basis to SLDC, so that same may be communicated to WRPC. Inspite of repeated request vide various correspondence, moreover the matter had been raised in OCC meeting of MP in time to time, however the desired information are still awaited from utilities. It is therefore desired that the above matter may be treated as urgent and status of healthiness of Automatic Under Frequency Relays may be provided to SLDC and also the under frequency may be tested periodically. In this context it is also mentioned that time to time WRPC official as well as SLDC official shall visit the sub-stations to ascertain the healthiness of under frequency relay PROVISION OF SYNCHRONIZATION FACILITY AT EHV SUB-STATIONS OF MPPTCL AND AT ALL POWER HOUSE: - The committee was apprised that as per Grid Code, the synchronization facility should be available at all the Power Stations, 400 KV Sub-stations, 220 KV Sub-stations and 132 KV sub-stations in the path of black start. In 60 TH OCC meeting MPPTCL representative informed the committee that order for 69 no. synchronization trolleys has been placed and 1 no. synchronization trolley has been delivered for checking and testing purpose at 220KV S/S Barwaha. In subsequent meetings this issue has been discussed. However, no any fruitful progress has been observed so far. In the above context it is indicated that at Manikheda HPS and Rajghat HPS synchronization facility is not available. It is felt that every Hydel Power station should be equipped with synchronization facilities invariably for system reliability and Crises Management. Also at Manikheda HPS & Rajghat HPS single bus system exists, hence MPPGCL is requested to explore the possibility for commissioning of Double Main Transfer Bus system. Thus, MPPGCL is requested to provide synchronization facility at Manikheda HPS and Rajghat HPS and MPPGCL may kindly provide status of making synchronization facility in aforesaid HPS. The matter was discussed with the committee and MPPTCL has been requested to provide the status of installation and commissioning of synchronization trolleys at different substations. Further, is also requested to indicate, whether synchronization facility could be provided at Karera & Pichhore substation on priority basis. The matter has been discussed with officers of T&C wing, it has been ensured that they are making arrangement for installation of synchronizing trolley at Pichhore and Karena S/s at the earliest DELAY IN SUBMISSION OF DOCUMENTS FOR FIRST TIME CHARGING OF ELEMENTS:- The committee was apprised the procedure for interconnection of new transmission elements is briefly narrated hereunder:- Intimation by Transmission Licensee to RLDC / SLDC(Annexure A1-A5): 10 days prior to anticipated date of first time charging. Acknowledgement and comments of RLDC/ SLDC to Tr. Licensee ( Format-II): Within 3 days. Submission of request for first time charging by Tr. Licensee to RLDC//SLDC (Annexure B1-B5): 3 days prior to anticipated date of first time charging. Minutes of 67th OCCM of MP 13

16 RLDC shall issue Provisional Charging Approval for first time charging to licensee and in case of interregional element RLDC to issue consent/ request to NLDC for IR lines. In case of intrastate line charging approval shall be conveyed by SLDC: (within 2 days). Licensee to submit dummy SEM reading to RLDC to ensure that the Meter processing Software is able to read the SEM data from the new meters. Licensee to take Operational Code from RLDC /SLDC Control Room for switching operations. The code shall be issued keeping view of grid reliability. Transmission Licensee submit Post Charging documents (Annexure C1 to C4). RLDC/ N LDC shall verify the post charging documents and issue certificate for interstate / Interregional lines / ISTS lines. The respective testing department shall furnish regarding measures taken to take care new element interconnection for protection co-ordination for adjacent s/s and accordingly undertaking shall be provided. It is requested that licensee / utilities shall strictly adhere with time schedule for documentation of first time charging of new transmission elements of all interstate line and all EHV elements 400kv and above. It may also be ensured that FTC formalities should have completed before availing outage for integration of element. The authority submitted FTC document should ensure compliance of protection/ metering/telemetry issue in coordination with T&C official. It is also desired that all necessary data should have made available to all adjacent s/s for relay coordination well before targeted date. The authority submitted FTC document should ensure all formalities have been completed otherwise it would be difficult to obtain clearance from WRLDC. In general, non-attachment of requisite papers/ SLD/ document of standing committee approval /approval of Electrical inspector /noncompliance of relay coordination of adjacent s/s / providing information incorrectly caused delay in obtaining FTC approval. Therefore, it is desired that FTC document completed in all respect may be provided in stipulated time schedule so that FTC formalities could be completed within targeted date of charging.the committee was apprised that WRLDC has developed web based FTC software for submitting FTC document / application to WRLDC for first time charging approval. The software is ready for registration and processing of FTC and trial operation applications. Hence, all concerned department have requested to register on the web based FTC software and initiate all the applications / requests through software only. A manual has also been forwarded to all utilities to understand the workability of FTC software. The matter was discussed with the committee TEN DAILY RESERVOIR OPERATION TABLE OF MPPGCL HPS: - In the meeting held in Regional Office of MPPMCL at Bhopal on to discuss availability from Sardar Sarovar Project, ISP & OPS and State Hydel Plants for Rabi season, MPPGCL had agreed to obtain ten daily reservoir operation table from WRD and NVDA for their operation of their hydro generators. In last 54 th, 55 th & 56 th OCCM, request has been made to MPPGCL for furnishing the same to SLDC within a week. It is requested that MPPGCL shall submit the Ten Daily Reservoir Table of hydel power stations in coordination with NVDA and WRD for optimum utilization of available water in the reservoirs during the summer season. Minutes of 67th OCCM of MP 14

17 ITEM NO. 7: BLACK-START MOCK DRILL OF HYDEL POWER STATIONS : Black Start mock drill of Hydel stations of MPPGCL:- During the black start mock drill successfully carried out at Hydel power station as mentioned below:- S.NO. NAME OF HPS DATE OF MOCK DRILL 1 Pench & Bargi HPS Joint Mock Drill Gandhi Sagar HPS Rajghat HPS Manikheda HPS MPPGCL may apprise the same in the meeting. The Black Start Mock Drill at Birsinghpur HPS was conducted on but the mock drill was suspended due to abnormal sound observed from generator side during mock drill. The detailed report from Birsinghpur HPS, MPPGCL is still awaited. It to inform that the dates proposed to conduct the Black Start Mock Drill of various HPS is as below:- S.NO. NAME OF HPS DATE OF MOCK DRILL 1 ISP OSP In view of the above all the concerned entities were requested to confirm the proposed dates. Representative from NHDC confirmed the above dates for conducting the Black Start Mock Drill. ITEM NO. 08: AVAILABILITY BASED TARIFF (ABT) RELATED ISSUES: 8.1 TESTING & CALLIBRATION OF METERS AND NON-RECEIPT OF TIMELY JMR DATA: 1. SLDC representative already requested CE(T&C) office in previous OCCMs to apprise the status of testing / calibration of interface meters as per Regulations 10 and 18 of Central Electricity Authority (Installation and operation of meter) Regulation 2010 to the committee. CE(T&C) office representative informed that calibration testing kit not available to all circles. Further, they have informed that telephonic disscution to ERDA & offer to contract testing / calibration of all interface meters and also contact to CPRI for testing and celibration of interface meters. 2. SLDC representative informed that inspite of the repeated requests made by SLDC in the previous OCCMs to issue instructions to all circle office for furnishing the JMR data in standard format is not received by SLDC by 7 th of every month and requested CE(T&C) office to furnish the same by 7 th of every month. CE(T&C) office has assured that instructions will be issued to all circle offices for furnishing the JMR data in standard format by 7 th of every month at id - abtmpsem@gmail.com. 3. SLDC representative already informed that CE(T&C) office in 66 th OCCM to provide list of 150 Nos newly commissioned interface points as per order no dated and subsequent Minutes of 67th OCCM of MP 15

18 amendment no dated placed on M/s Secure Meters Ltd. by CE(Procurement) office for AMC of 150 Nos AMR system (modem, optical cable, Yagi antenna, configuration). In the order it is mentioned the list of 150 Nos interface points shall be provided CE(T&C) office. Futher, SLDC vide letter No.07-05/SG-11/SEM/3504 on date requested CE(T&C) office to provide list of 150 interface points to M/s Secure Meters Ltd. so that integration of meters could be done. However, till date the list has not been issued by CE(T&C) office. He further informed that in the absence of list the meters are not integrated with AMR system of SLDC and thus the data is not being received by SLDC. Every month SLDC is assessing the data of around 100Nos of ABT meters due to non-availability of data. He requested CE(T&C) office to immediately issue the list of 150 nos. meters installed at the interface points to M/s Secure Meters Ltd. so that same are integrated with AMR System of SLDC. CE(T&C) office representative informed that two working days the final list of 150 nos. newly commissioned interface points provided to SLDC. 4. SLDC representative already inform that CE(T&C) office in 66 rd OCCM the data of ABT meters installed at the interface points of Open Access Customers ( M/s SEL, M/s Prism Cement Unit-2 & M/s Maihar Cement) is not being downloaded through AMR System of SLDC and site officials are also not furnishing the load survey data of these meters. He requested the CE(T&C) office to issue instructions to field offices for data downloading and furnishing the same to SLDC. CE(T&C) office assued that instructions shall be issued to site officials. 8.2 NON RECEIPT OF ABT METER DATA OF RAILWAY TSS THROUGH AMR SYSTEM: SLDC representative already informed that in 66 th OCCM the ABT meter data of following TSS of Railways is not being received through AMR system. 1. Railway TSS Bordhai. 2. Railway TSS Umreth. 3. Railway TSS Mansakra. Railway representative informed that Sim replacement procurement under process and Railways will coordinate with M/s Secure Meters Ltd. and MPPTCL for resolving the problems related with downloading of meter data of above TSS through AMR installed at SLDC. 8.3 AMR FACILITY FOR THE ABT METERS INSTALLED AT MPPGCL : SLDC representative informed that MPPGCL has provided AMR facility on 107 Nos ABT meters installed at the interface points and all the meters were successfully integrated with AMR server. He also informed that ABT meter data of 53 Nos meters were not received through AMR system in the month of November 2018, the status of data received through AMR system was also ed to GCC, MPPGCL on 3 rd December He requested MPPGCL to take up the matter with site officials and M/s Secure Meters Ltd. to resolve the problems related with non readability of meters integrated successfully and provide AMC of AMR facility to M/s Secure Meters Ltd. so that complete data is received by SLDC. MPPGCL representative intimated that matter is being taken up with M/s Secure Meters Ltd for providing AMC of AMR system. Minutes of 67th OCCM of MP 16

19 SLDC representative requested MPPGCL to furnish the meter master of ABT meters installed at the interface points as standy meters and provide AMR facility on standby and check meters. MPPGCL assured that instructions will be issued to site officials for providing the meter master of standby meters. MPPGCL also assured to look into the matter for providing AMR facility on check and standby meters. SLDC representative requested MPPGCL to issue instructions to officials of SSTPS PH-I & II for furnishing the JMR data of Secure meters where AMR is provided and data is downloaded by SLDC. MPPGCL assured that instructions will be issued to site officials. He also informed that the 15 minutes blockwise data recorded in the meter no. XD installed at GT of SSTPS PH-II unit-iii do not match with midnight data i.e monthly injection data. MPPGCL representative intimated that the matter take up M/s Secure Meters Ltd. for resolving the problem. SLDC representative informed that, Sanjay Gandhi Thermal Power Stations of MPPGCL, the injection recorded by the ABT meters installed at the outgoing feeders generally do not match with the generation recorded at Generator end and requested MPPGCL to advise the site officials for monthly checking / verification of feeder wise data with Generator and Station Xmer wise data. 8.4 NON RECEIPT OF ABT METER DATA OF ISP & OSP HPS THROUGH AMR SYSTEM: SLDC representative already informed that in 66 th OCCM the ABT meter data of ISP & OSP HPS is not being received through AMR system installed at SLDC and requested ISP & OSP to coordinate with M/s Secure Meters Ltd. & SLDC for resolving the problems related with downloading of meter data through AMR. ISP & OPS assured to coordinate with M/s Secure Meters Ltd and SLDC for downloading of meter data. 8.5 NON RECEIPT OF MONTHLY INJECTION DATA (JMR) OF NEWLY COMMISSIONED WIND & SOLAR POWER PROJECT FOR ISSUANCE OF MONTHLY STATE ENERGY ACCOUNT : SLDC representative informed that the concerned SE(O&M) s do not furnish the monthly injection data of following newly commissioned Wind & Solar Power Project connected at 33KV level. However, SLDC is incorporating the injection data recorded in ABT meter in SEA, but, verification of data could not be done. i) 15MW Solar Power Project of M/s Simcom Pvt. Ltd. having (Simcom(1MW), Eastman(4MW), Made Easy(10MW) connected through 33KV Ctk-I and 4 MW Solar Project of M/s Ramesh Steels connected through 33 Ckt-II at 220KV Ganjbasoda. SE(O&M) Vidisha. ii) 15MW Wind Power Project of M/s Tirupati Dhar Renewable Power Pvt. Ltd. connected at 33KV Jaitpura Dhar. SE(O&M) Dhar. iii) 15MW Wind Power Project of M/s Dhar Wind Power Projects Pvt. Ltd. connected at 33KV Dashera Maidan SE(O&M) Dhar. iv) 30MW Wind Power Project of M/s Sudheer Projects Pvt. Ltd. connected at 132KV Berchha SE(O&M) Sahajapur Minutes of 67th OCCM of MP 17