MADHYA PRADESH POWER TRANSMISSION COMPANY LIMITED STATE LOAD DESPATCH CENTRE, NAYAGAON, RAMPUR, JABALPUR Telephone: (0761) 2970089 Fax: (0761) 2664343/2970119 e-mail [email protected]Corporate office: Madhya Pradesh Power Transmission Co. Ltd., Block No.2, Shakti Bhawan, Rampur, Jabalpur 482008, CIN-U40109MP2001SGC014880, Email-mdtransco.nic.co.in No.07-05/SG-9B-II/3233 Jabalpur, dated:13.11.2018 To As per distribution list Sub: Agenda of 66 th meeting of Operation and Coordination Committee of MP. … The Agenda of 66 th meeting of the Operation and Coordination Committee of MP scheduled on 17 th November 2018 at Conference Hall, SLDC, MPPTCL, Nayagaon, Jabalpur has been uploaded on the website of SLDC ‘www.sldcmpindia.com’ and can be downloaded. (R.A. Sharma) Member Secretary, OCC SLDC, MPPTCL, Jabalpur
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MADHYA PRADESH POWER TRANSMISSION COMPANY LIMITED
STATE LOAD DESPATCH CENTRE, NAYAGAON, RAMPUR, JABALPUR Telephone: (0761) 2970089 Fax: (0761) 2664343/2970119 e-mail [email protected]
[email protected] 7. The Chief Engineer (Procurement.), MP Power Transmission Co. Limited, Jabalpur, .Fax No- 0761-2660908 Email –
[email protected] 8. The Chief Engineer(EHT:Const.), MP Power Transmission Co. Limited, Jabalpur. Fax-0761-2661618, E-mail-
[email protected]. 9. The Chief Engineer(EHT:Maint&insp.), MP Power Transmission Co. Limited, Jabalpur. Fax-0761-2665593, E-mail-
[email protected]. 10. The Executive Director (O & M:Gen), MP Power Generating Company Limited, Jabalpur. Fax No- 0761-2664749,
Email- [email protected], Email- [email protected] 11. The Chief Engineer (O&M:Hydel), MP Power Generating Co. Ltd, Jabalpur, Fax No-0761-2664749. 12. The General Manager(PM), MPPMCL, Jabalpur Email – [email protected][email protected] 13. The Superintending Engineer (GCC), MPPGCL, Jabalpur Email – [email protected][email protected]. 14. The General Manger (DCC-EZ), DISCOM Control Centre, MP Poorva Kshetra Vidyut Vitaran Co.Limited, Jabalpur,
Fax No- 0761-2668503, Email – [email protected]. 15. The Dy. General Manager (DCC –CZ), DISCOM Control Centre, MP Madhya Kshetra Vidyut Vitaran Co. Limited,
Bhopal, Fax No-0755-2580611,Email- [email protected]. 16. The Executive Engineer (DCC-WZ), DISCOM Control Centre, MP Paschim Kshetra Vidyut Vitaran Co. Limited, Near
Polo Ground, Jail Road, Indore, Fax No- 0731-2421554, Email- [email protected]. 17. The Executive Engineer, Sub Load Despatch Centre, MPPTCL, Indore, Fax No- 0731-2874515, Email –
[email protected]. 18. The Executive Engineer, Sub Load Despatch Centre, MPPTCL, Bhopal, Fax No- 0755-2885220, Email –
[email protected] 19. The General Manger(RO), MPPMCL, In front of Bhojpur Club, E-4, Arera Colony,Bhopal, Fax No-0755-2423046,
[email protected] 20. The Chief Engineer (PM&C), Narmada Hydroelectric Development Corpn. Ltd, NHDC Parisar, Shamla Hills, Bhopal –
462013., Fax No- 0755-4030130,Email – [email protected][email protected] 21. The Chief Electrical Distribution Engineer, West Central Railway (WCR), General Manager’s Office, Electrical
27. M/s Ujaas Energy Ltd. 701, NRK Business park, Vijay Nagar Sqaure, Indore – 452010, Email id :[email protected] 28. M/s Suzlon Global Services Ltd., 1090, Scheme no. 114, Park-2, Ring Road, Universal Hospital Row,
ITEM NO. 1 : CONFIRMATION OF MINUTES : Minutes of 65TH meeting of Operation & Coordination Committee of MP held on 14th September 2018 at SLDC, MPPTCL, Jabalpur were forwarded to the committee members vide No. 07-05/SG-9B-II/3164 Jabalpur dated 01.11,2018. No comments has been received.
[OCC may confirm the minutes] ITEM NO. 2 : REVIEW OF SYSTEM OPERATION DURING THE MONTHS AUGUST 2018 TO SEPTEMBER 2018. 2.1. Frequency Particulars: During August 2018 the system frequency was below 49.90 Hz for 8.93% of time against 13.21% of time during September 2018. The system frequency was above 50.05 Hz for 10.63 % of time during August 2018 against 6.57 % of time during September 2018. The system frequency was within the IEGC range of 49.90-50.05 Hz for 80.44 % of the time during August 2018 against 78.48 % of time during September 2018. The average monthly frequency was 49.98 Hz during month of August 2018 and 49.95 Hz during month of September 2018. The system frequency did not touch 49.98 Hz during the above period.
The detailed frequency particulars for the month of August 2018 and September 2018 are enclosed
at Annexure-2.1. The brief detail of frequency profile is given here under:-
2.2.1 Operational Discipline : System operated in terms of frequency profile for the months AUGUST
2018 and SEPTEMBER 2018 is as given below for discussion by the committee :
Month % of time Frequency Below 49.90 Hz
% of time Frequency above 50.05 Hz
% of time frequency within the permissible range of 49.90-50.05 Hz.
Average monthly frequency
AUGUST 2018 8.93% 10.63% 80.44% 49.98 Hz
SEPTEMBER 2018 13.21% 06.57% 80.22% 49.97 Hz
[Committee may like to note]
AGENDA FOR 66th MEETING OF OPERATION & COORDINATION COMMITTEE OF MP TO BE HELD ON 17th NOVEMBER 2018 AT 11:00 AM AT CONFERENCE HALL, SLDC,
MPPTCL, NAYAGAON, JABALPUR.
Agenda Of 66th OCCM Of MP 1
2.2.2 Voltage Profile: During the months AUGUST 2018 and SEPTEMBER 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
AUGUST 2018 SEPTEMBER 2018 Max. Voltage Min. Voltage Max. Voltage Min. Voltage
2.2.3 Status of Capacitor Banks in sub-transmission system: The updated information of the status of capacitor banks in sub-transmission system as on 31th SEPTEMBER 2018 as submitted by DISCOMs is detailed below:
DISC
OM
Capacitor bank
installed in good condition (No)
Capacitor Banks healthy but not in service due to control ckt problem
Capacitor bank installed but defective & are repairable (No)
Requirement of repair against each unit (No)
Requirement against non-repairable capacitor banks
Capacitor banks already covered under ADB T-V
Balance capacitor banks to be covered in other schemes
600 KVAR
1200 KVAR
1500 KVAR
600 KVA
R
1200 KVA
R
1500 KVA
R
600 KVAR
1200 KVAR
1500 KVAR
No of 100 KVAR Units
required
600 KVAR
1200 KVAR
600 KVAR
1200 KVAR
600 KVAR
1500 KVAR
EZ 411 136 40 28 10 05 08 11 0 25 - - - - - -
CZ 3 686 795 - - - 1 0 0 3 0 0 0 0 0 0
WZ 634 547 715 0 6 3 21 12 12 166 10 13 - - - 3
Agenda Of 66th OCCM Of MP 2
The required details has not be furnished by East Discom, hence it is requested that the details may
be submitted in the meeting. [Action: MPPTCL, DISCOMS]
2.2.4 Status of Shunt Capacitor Banks installed at various EHV Transmission Substation: The updated information of the status of installed capacitor banks (in MVAR) in EHV transmission system as on 30.09.2018 as submitted by MPPTCL is given below:-
[Action: MPPTCL]
2.2.5 Status of completion of ongoing Transmission Schemes being executed by MPPTCL: The various ongoing Transmission Schemes completed during the financial year 2017-2018 (up to SEPTEMBER 2018) and plan for completion of various ongoing Transmission Schemes for the Year 2017-2018 is enclosed as Annexure 2.2.5(i) and 2.2.5(ii) respectively.
[Action: MPPTCL]
2.2.6 U/F and df/dt Relay Operation (i) U/F and df/dt Relay Operation: Frequency did not touch 49.20 Hz during AUGUST 2018 and
SEPTEMBER 2018. There was no df/dt operation during the same period. [Action: MPPTCL]
(ii) Defective u/f, df/dt relays: 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. [Committee may like to note]
2.3 Power Cuts / Load restrictions/Differential Load Shedding by DISCOMS & group allocation to
33 KV feeders: (i) Details of DISCOM wise Power supply given to various domestic categories during the period AUGUST
2018 and SEPTEMBER 2018 is enclosed at Annexure 2.3(i).
[Committee may like to note]
(ii) Group Allocation to Newly Commissioned existing EHV substations:- 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
EAST
Jabalpur 02 02 Sagar 00 03 Rewa 01 04 Total 03 05
WEST Indore 11
06 Ujjain 03 07 Total 14 08
CENTRAL Bhopal 11
09 Gwalior 10 10 Total 21
TOTAL Grand Total 38
Discoms are requested to furnish the details as per list enclosed at Annexure-2.3(ii) in the meeting. In view of the above it is requested that the order copy of the feeders which have been group allocated
shall be submitted to P&D, MPPTCL under intimation to SLDC. [ACTION : DISCOMs]
ITEM NO. 3 : OPERATIONAL PLANNNING: 3.1 Generating Units under planned outage and proposed maintenance programme: The annual maintenance /outages of thermal generating units of MPPGCL during November 2018 to December 18 is NIL as intimated by ED(O&M:Gen.). However the Hydel Unit outage is not intimated, hence it is requested that the hydel unit planned outage details may please be submitted by CE (O&M:Hydel), MPPTCL in the meeting.
[Committee May like to note]
3.2 Proposed shutdown programme of Transmission lines / Transformers: The proposed shutdown of transmission elements for the period 01.06.2018 to 31.07.2018 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. No
Line/Transformer/ etc under long Outage
Outage date Reason Response from Utility
1. 16MVA BBL make X’mer at 132KV S/S Berasiya. 10.06.2018
X’mer tripped on Differential & Buchholz
Trip Indications
MPPTCL informed that X‘mer is declared faulty & replacement is expected in Nov.-18. Latest status may please be submitted by MPPTCL in the meeting.
Agenda Of 66th OCCM Of MP 4
2. 40MVA NGEF make at 132KV S/S Ghatabillod 02.06.2018
X’mer tripped on Differential & Buchholz
trip indications.
MPPTCL informed transformer replaced by new 50 MVA X’mer on 03.10.2018.
MPPTCL informed that another 400/220KV, 315MVA transformer commissioned on Dt.17-09-18.
4 20MVA EMCO X’mer at 132KV S/S Chicholi. 27.06.2018 Tripped on Buchholz trip
indications.
MPPTCL informed that X‘mer is declared faulty & replacement is expected in Nov.-18. Latest status may please be submitted by MPPTCL in the meeting.
5 160MVA, 220/132KV BHEL Make X’mer at 400 KV S/s Ashta.
23.07.2018 X’mer tripped on
Differential & Buchholz trip indications.
MPPTCL informed that X’mer has been replaced by another 160 MVA X’mer on Dt.04-10-18.
6. 40MVA ECE make X’mer at 220KV S/S Badod 24.07.2018
X’mer tripped on Differential & Buchholz
trip indications.
MPPTCL informed that X’mer was declared faulty & replaced by 20MVA,132/33KV Transformer on Dt.10-10-18
7. 63MVA BHEL make X’mer at 132KV S/S Dabra 04.08.2018
X’mer tripped on OSR and Differentail trip
indications due to failure of OLTC.
Transformer is under GP and referred to OEM for replacement of defective diverter switch. MPPTCL informed that after replacement of defective Diverter Switch, transformer charged on Dt. 19-09-18
MPPGCL informed that tendering work is under progress and techno-commercial has been opened on 25.10.18. Correspondence is under progress.
9. 500 MVA, 400/220 KV X’mer at STPS. 19.04.2018
X’mer tripped at 21:55 Hrs. due to LA Burst. Emergency shutdown taken for 15 days from
21.04.18 to 05.05.18 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. Latest status may also be intimated by MPPGCL/MPPTCL in the meeting.
10. 400 KV Transfer Bus Coupler at SGTPS 02.09.2018 SF6 Gas Leakage
MPPGCL informed that Transfer Bus Coupler has been taken in service on 08.10.2018.
11. 50 MVAR (Make GE) Line Reactor at 400KV Sarni-Asta Ckt-I.
31.03.2018
Under outage since 31.03.18 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). Clarification is awaited. Latest status may also be intimated by MPPGCL in the meeting.
Agenda Of 66th OCCM Of MP 5
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 utility may submit the latest status.
[Action:MPPGCL/MPPTCL] ITEM NO. 4 : OPERATIONAL STATISTICS FOR THE MONTH OF AUGUST 2018 AND SEPTEMBER 2018: The details of actual generation, Schedule from Central Sector, demand etc. are given in the following Annexures: Annex. 4.1 Unit wise actual Generation of MPPGCL thermal Units and station wise Generation of
MPPGCL & NHDC Hydel Units. Annex. 4.2.i Power Supply Position(Energy Balance Sheet). 4.2.ii. Power Supply Position Scenario:-
POWER SUPPLY POSITION FOR THE MONTH : Aug 18 All Fig in MW
Particulars Max Dem
Met on : 06-Aug-18 AT :
08-30
Average 01-10 Aug
Average 11-20 Aug
Average 21-30 Aug
Average Monthly
STATE PEAK DEMAND MET 8577 7303 7194 6544 6999 BREAKUP :-
STATE THERMAL (Actual Gen) 2448 2385 2636 1893 2291 STATE THERMAL (RSD) Total MW 0 0 0 420 420
STATE HYDEL 171 281 335 665 434
IPP (STATE) 353 294 300 148 244
CENTRAL SECTOR (Schedule) 2741 2387 2371 2232 2327
CENTRAL SECTOR (Surrender) 45 202 261 388 287
IPP (INTER STATE) 2038 1911 1864 2007 1930
RAILWAY 219 200 186 194 193
RENEWABLE ENERGY 1296 1124 800 890 937
OTHERS -22 -98 -132 -87 -105
BANKING / PURCHASE / SALE -846 -1170 -1137 -1371 -1231
DEVIATION 178 -11 -29 -25 -22
DEVIATION (AVERAGE) 178 Between (-521 to 519)
Between (-639 to 638)
Between (-407 to 404)
Between (-639 to 638)
ENERGY SUPPLY STATE (LU) 1849.34
Agenda Of 66th OCCM Of MP 6
POWER SUPPLY POSITION FOR THE MONTH : Sep 18 All Fig in MW
Particulars Max Dem
Met on : 19-Sep-18 AT :
19-30
Average 01-10 Sep
Average 11-20 Sep
Average 21-30 Sep
Average Monthly
STATE PEAK DEMAND MET 9481 6358 8003 7712 7358 BREAKUP :-
STATE THERMAL (Actual Gen) 2698 1665 2600 2838 2368 STATE THERMAL (RSD) Total MW 600 1610 0 600 1610
STATE HYDEL 1905 994 930 747 890
IPP (STATE) 441 145 310 161 205
CENTRAL SECTOR (Schedule) 2834 2210 2697 2591 2499
CENTRAL SECTOR (Surrender) 0 485 204 222 304
IPP (INTER STATE) 2346 2000 2105 1990 2032
RAILWAY 210 198 199 198 198
RENEWABLE ENERGY 289 990 657 646 764
OTHERS -101 -111 -62 -34 -69
BANKING / PURCHASE / SALE -1436 -1695 -1480 -1468 -1548
DEVIATION 295 -38 47 41 17
DEVIATION (AVERAGE) 295 Between (-495 to 437)
Between (-396 to 533)
Between (-498 to 825)
Between (-498 to 825)
ENERGY SUPPLY STATE (LU) 2043.80
Annex. 4.3 Hourly Average of Availability and Demand. Annex. 4.4 Hourly average schedule Vs Drawal of DISCOMs.
[Committee may like to note] ITEM NO. 5 : SYSTEM DISTURBANCE IN MP DURING OF AUGUST 2018 AND SEPTEMBER 2018: The Grid Disturbances and Grid Incidents in MP during these months are given in Annexure 5.
[Committee May like to discuss] ITEM NO. 6.0 : IMPORTANT OPERATIONAL ISSUES:- 6.1 STATUS OF COMPLETION OF ONGOING SCHEMES FOR COMMISSIONING OF REACTORS / TRANSMISSION ELEMENTS:- The present status regarding schedule and
commissioning of reactors / transmission elements is as below:-
Agenda Of 66th OCCM Of MP 7
S.No. 400 KV S/s Size MVAR
Implementing Agency
Expected Date of Commissioning as intimated in last OCC
1. Bus Reactor : ISP 125 MVAR NHDC
Bus reactor test charged on 21.09.2018. However for final charging telemetry compliance required to be completed.
2. Line Reactor on 400 kV Sapura–ISP line at STPS
50 MVAR MPPGCL
MPPGCL informed that the price bid has to be opened and the reactor will be commissioned by December 2018. Latest status may please be submitted by MPPGCL in the meeting.
3. Bus Reactor at SSTPS
125 MVAR MPPGCL
Work will be carried out under PSDF as intimated by MPPGCL in 62nd OCC MPPGCL informed the committee that the reactor is under procurement and will be commissioned by December 2018. Latest status may please be submitted by MPPGCL in the meeting.
The latest status may be submitted in the meeting.
[Action: MPPGCL/NHDC]
6.2 SYSTEM CONSTRAINT AT SATNA, MAIHAR, REWA, SIDHI AREA: As discussed in
previous meetings of MP-OCCM any one convincing measures have not been brought in the notice of OCCM
to handle the constrain faced in above area which was elaborated in length in the meetings earlier time to
time. It is therefore required that transmission network/ Transformer capacity at Maihar, Rewa, Sidhi and
Satna area may be re-examined and concrete solution may be work out at the earliest so that in future load of
this area could be handled with reliability and security. In this context it is felt following work may be expedite
to handle increasing load of Rewa area:
(1) Shifting of any one ckt of 220 kv Satna-Kotar line from 220kv s/s Satna to Satna PG S/S utilizing 4th
Satna -Satna interconnector which is carrying significantly less load due to higher line length in
comparison to other interconnectors.
(2) Erection of 2nd 220/132 kv ICT at 220kv s/s Maihar.
(3) Completion of 132 KV Auxiliary bus at Maihar so as to enable to take 132 KV Maihar -Amarpatan
feeder on Auxiliary Bus during any contingency or for load management purpose. At present Auxiliary
Bus at Maihar is in incomplete shape.
(4) Early completion of 220kv connectivity with RUMS Rewa i.e. 220KV Rewa-Rewa UMSP CKT I & II and
220KV Sidhi -Rewa USMP CKT no I and II. This arrangement shall give stability at Rewa /Satna area;
therefore, it should be given utmost priority. It is indicated that 400/ 220 KV ICT No I AND II have
already been commissioned at UMSP Rewa , however we are not in a position to utilize the same.
The MPPTCL is requested to give updates on the matter and action taken to mitigates the line/ICT
constrain. [Action:MPPTCL-(P&D)/(T&C)/(EHT)]
Agenda Of 66th OCCM Of MP 8
6.3 PROTECTION AUDIT OF HYDEL POWER STATIONS OF MPPGCL:- The MPPGCL
vide letter No. 07-10/601-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 email dtd. 11.07.2018 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 19.01.2018. As a sequel to above,
SE (Protection), WRPC is 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. Vide this office letter no 07-05/RPC-37A/3218 DTD 12/11/20118,CE
O&M-Hydel , MPPGCL has been requested to provide Protection details and associated equipment details in
prescribed format of protection Audit so that further action on the matter may be initiated. [Action:MPPGCL]
6.4 DETAILS OF PROTECTION AUDIT AND IMPLEMENTED DEFENSE MECHANISM:- WRPC vide their e-mail dtd:06.11.2018 informed that The Chief Engineer(NPC)CEA New
Delhi vide letter no.7/GSC/NPC/CEA/2018/892-98 dtd:-10.09.2018 (enclosed as Annexure-6.4) intimated that
in a meeting with Hon’ble MoSP(IC) on 20.08.2018 for discussion of the draft National Electricity Plan, CEA
has been requested to prepare report & presentations covering aspects of grid reliability and security,
especially with respect to grid failure, etc. Therefore Chief Engineer (NPC) has requested to furnish following
details in prescribed format:-
i. Protection Audit carried out so far and its observation (As per Annexure-I).
ii. Islanding scheme implemented in the region (As per Annexure-II).
iii. SPS implemented in the region (As per Annexure-III).
iv. Status of implementation of AUFLS in the region (As per Annexure-IV).
v. Status of implantation of df/dt relays & its settings in the region (As per Annexure-V).
In view of the above it is requested to all the concerned entities are requested to furnish the desired data
in the prescribed formats to SLDC/WRLDC/WRPC.
[Action:MPPTCL,MPPGCL,NHDC(ISP/OSP),JP Bina,BLA]
6.5 LOW VOLTAGE PROBLEM AT KATNI, REWA, MAIHAR AND SATNA AREA: The
outage has been availed on 400 KV Birsinghpur-KatniCkt No.-II on dtd. 05.10.2018 for 3 days for replacement
of circuit breaker at Birsinghpur Power House. In the above, context it is mentioned that 400 KV Katni- Damoh
line and 220 KV Katni-DamohCkt were under break down since long due to tower collapse. Considering
Agenda Of 66th OCCM Of MP 9
continuous pursuance of Power House officials’ outage on 400 KV Birsinghpur –Katni Ckt. No-II was
permitted. On dtd. 05.10.2018 during evening peak and on dtd.06.10.2018, looking to low voltage observed at
Katni substation SGTPS Power House officials were contacted and requested to operate their units in over
excited mode to inject reactive power in the system within the capability curve so that system may be operated
near nominal voltage. However, it has been observed that in spite of repeated request the units were not
injected any significant MVAR support. At 11:20 hrs on dtd. 06.10.2018 the code was issued to SGTPS unit
indicating required MVR to be injected in the system, however the MVAR support was not increased, on the
contrary few units were absorbing the MVAR from the system.
In the above context it is mentioned that looking to ensuing Ravi Season load is in increasing trend and
MVR demand of the system is increased significantly, it is therefore requested that the reactive power may be
injected into the grid by all the generating units within the capability curve as per provisions of grid code. In
view of above it is requested that the concerned official may please be directed suitably in this regard and be
adhered to directives to control the low voltage, by injecting maximum MVAR within capability curve.
The MPPGCL may kindly brief the issue to the Committee.
[Action:MPPTCL,MPPGCL]
6.6 DELAY IN SYNCHRONIZING UNIT OF BARGI POWER HOUSE AFTER ISSUE OF CODE FROM SLDC ON DTD. 11.10.2018 DURING EVENING PEAK:- It is being observed
that unit No.-I at Bargi HPS, takes considerable time in synchronizing, after issue of code from SLDC. In the
above context, it is conveyed that on dtd 11.10.2018 the code was issued by SLDC at 17:03 hrs for taking the
units of Bargi Hydel Power Station, on bar looking to increasing trend of demand and considering system
exigencies. The unit No.-II was synchronized at 17:15 hours, however, the unit –I could be synchronized only
at 18:20 hrs after elapse of one hour seventeen minutes. Delay in synchronizing the unit with the system is
not understandable. Moreover, no any reason was conveyed to SLDC for such abnormal delay. It may be
appreciated that during evening peak hours load are in increasing trend and system frequency goes to
minimum level. Looking to system contingency, such delay is not desirable and not warranted for smooth
operation of integrated system. The MPPGCL is requested to indicate the reason of aforesaid problem and
remedial action thereof. [Action: MPPGCL]
6.7 INSPECTION OF RELAYS OF AUTOMATIC UNDER FREQUENCY LOAD SHEDDING AND CERTIFICATION THEREOF: - 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 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
Agenda Of 66th OCCM Of MP 10
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.
Committee may please discuss the matter.
[Action: MPPTCL(T&C/P&D), Discoms]
6.8 UNDER FREQUENCY RELAY OPERATION AT 15:47 HRS ON DTD. 21.10.2018 AT CHHINDWARA:- On 21.10.2018, at 15:47 hrs under frequency relay was operated at 220 KV substation
Chhindwara and 132 KV substation Chhindwara, resulted interruption to 11 nos 33 KV feeders. The system
frequency at that moment was running at the level of 49.93 Hz. It appears that under frequency relay was mal-
operated at Chhindwara sub-station. The SE (Testing), Chhindwara has been requested vide this office letter
that under frequency relay at Chhindwara be got tested and the cause of tripping may please be conveyed to
this office. It is therefore requested MPPTCL may please apprise the reason of under frequency relay
operation and action taken thereof. [Action: MPPTCL] 6.9 PROVISION OF SYNCHRONIZATION FACILITY AT EHV SUB-STATIONS OF MPPTCL
AND AT ALL POWER HOUSE: - 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 60TH 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 is therefore requested, the MPPGCL may kindly
provide status of making synchronization facility in aforesaid HPS. The MPPTCL may kindly 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 was discussed in the meeting. [Action: MPPTCL]
Agenda Of 66th OCCM Of MP 11
6.10 DELAY IN SUBMISSION OF DOCUMENTS FOR FIRST TIME CHARGING OF ELEMENTS:-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.
• 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.
[Action: MPPTCL/MPPGCL/ISP/OSP/JP BINA/BLA/All State Entities]
6.11 REPORTING OF FLASH REPORT, DR AND EL OF TRANSMISSION ELEMENTS &
DETAILED TRIPPING REPORT:- As per the provisions of Regulation 5.2 (r) of CERC (Indian Electricity
Grid Code) Regulations 2010 and Regulation of 5(9) of CERC (Indian Electricity Grid Code) (First
Amendment) Regulations, 2012 all the Regional Entities of the Region shall furnish the tripping details
including DR & SEL output to RLDC with in 24 hrs of the event for analysis and identify the real time measures
Agenda Of 66th OCCM Of MP 12
required in future to ensure secured grid operation. The flash report is also required to be furnished to SLDC
within an hour of tripping. It is observed that FLASH REPORT, DR & EL of station is not made available after
tripping of transmission grid element by the State Grid Entities and the flash report is also not being sent after
repeated pursuation. It is also to inform that as per CEA Protection Standards, in case of tripping of Inter Regional Lines of
voltage class 220 KV & above, the DR/EL files shall be invariably submitted to RLDC under intimation to this
office.
All intra-state entities are requested to submit the FIR, DR & EL of station during tripping of transmission
grid elements.
[Action: MPPTCL/MPPGCL/IPPs/NHDC/ISP/OSP] 6.12 TEN DAILY RESERVOIR OPERATION TABLE OF MPPGCL HPS: - In the meeting held in
Regional Office of MPPMCL at Bhopal on 24.09.2016 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 54th, 55th & 56th OCCM, request
has been made to MPPGCL for furnishing the same to SLDC within a week.
In last meeting MPPGCL has submitted the Ten Daily Reservoir Table of Bargi and Bansagar Hydel Power
Stations. It is requested that MPPGCL shall submit the Ten Daily Reservoir Table of remaining hydel power
stations in coordination with NVDA and WRD for optimum utilization of available water in the reservoirs during
the summer season. [Action: MPPGCL]
6.13 ABNORMAL VOLTAGE VARIATION OBSERVED IN PMU AT 400 KV S/s BINA:- The
abnormal voltage variations is being observed in PMU’s at 400 KV S/s Bina (plots enclosed as Annexure-6.13 (3 pages) since May 2018. SLDC has taken up the matter with T&C, MPPTCL and M/s GE.
M/s GE engineer visit was arranged to 400 KV S/s Bina to investigate the problem in PMUs & it has
been informed by GE site engineer that the voltage spikes are also observed in the input values of PMU from
Bus PT’s & line CVT secondary, hence it can be gathered that these PMU’s are showing correct values and
there is no issue in PMU.
Further it is also to intimate that the abnormal voltage spikes are still being observed in the PMU of 400
KV Main Bus I & II and 400 KV Bina(M.P) – JP BinaCkt installed at 400 KV S/s Bina and the magnitude
&frequency of spikes is continuously increasing with time .In addition to above, it is to also intimate that the
voltage spikes are observed in 400 KV Bina-JP BinaCkt even when the line is hand-tripped from both ends.
The matter was discussed in 64th OCCM and MPPTCL was requested to arrange for testing of Bus
PT’s, line CVT & related equipments installed at 400 KV S/s Bina for investigation of root cause of these voltage
spikes observed, for its rectification and ensure healthiness of equipments at site. MPPTCL may kindly update
the status.
[Action: MPPTCL]
Agenda Of 66th OCCM Of MP 13
ITEM NO. 7: BLACK-START MOCK DRILL OF HYDEL POWER STATIONS : Black Start mock drill of Hydel stations of MPPGCL:- During 2018-2019 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 11.04.2018
2. Gandhi Sagar HPS 06.07.2018
3. Rajghat HPS 29.08.2018
MPPGCL may apprise the same in the meeting.
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 13.12.2018
2. OSP 15.12.2018
3. Manikheda HPS 18.12.2018
4. Birsinghpur HPS 20.12.2018
In view of the above all the concerned entities may confirm the proposed dates.
[Action : MPPGCL/NHDC] ITEM NO. 08: AVAILABILITY BASED TARIFF (ABT) RELATED ISSUES:
8.1 TESTING & CALLIBRATION OF METERS AND NON-RECEIPT OF TIMELY JMR DATA:
1. SLDC has already requested CE(T&C) office in 65rd OCCM to issue instructions to site officials for
testing / calibration of meters installed at the Sub-Stations as per Regulations 10 and 18 of Central
Electricity Authority (Installation and operation of meter) Regulation 2010. CE(T&C) office is requested
to apprise the status of testing / calibration of interface meters to committee.
2. CE(T&C) office was repeatedly requested in previous 63rd,64rd and 65rd OCCM to issue instructions to
all circle offices for furnishing the JMR data in standard format enclosed herewith as Annexure-8.1 to
SLDC on email id- [email protected] before 7th of every month. However, JMR data of all TNCs
are still not being received by SLDC up to 15th of every month in required format. CE(T&C) office is
again requested to issue instructions to all circle offices for furnishing the JMR data in standard format
7 UJAAS-1 AGAR 132KV S/S AGAR Grid S/s End 33 MPC59595 8 UJAAS-2 AGAR 132KV S/S AGAR Grid S/s End 33 MPC59596
The ABT meters installed at the following Solar Generating Stations are recording the 15 minutes block wise data on slinding window principal thus blockwise data do not match with midnight data. The concerned officials are requested to ensure that ABT meters installed at interface points shall record load survey data in 15 minutes time block. Further concerned EE(T)’s are requested to advice RE Generators for immediate replacement of these ABT meters.
i. 5MW Designco Manufacturer & Exporter connected at 132KV S/s Arniyakala. ii. 12MW Avenger solar pvt Ltd. connected at 132KV S/s Suwasara.
DCC, Indore & Bhopal is requested to take-up the issue with concerned officials for time synchronization and replacement of ABT meters. CE(T&C) office is requested to instructions to concerned officers for time synchronization of ABT meter installed at the 50 MW NTPC Rajgarh Solar Project. [Action : CE(T&C), MPPTCL and West & Central Discoms]
ITEM NO. 9: SCADA and E&T RELATED ISSUES: 9.1 ARRANGENEMENT OF TELEMETRY OF IMPORTANT 220KV SUB STATIONS & 132KV S/S HAVING INJECTION FROM RENEWABLES/CAPTIVE POWER PLANTS OR HAVING INTERDISCOM FEEDERS & HAVING TRACTION FEEDERS-
The telemetry of new 400kv/220KV S/s, important 132KV S/s having injection from renewable
generating Stations, Captive Power Plant & Railway Traction feeders is to be provided before charging of the
sub stations. However, telemetry of Six Sub Stations i.e. 32 KV Raghogarh, 132 KV Isagarh, 132 KV
Pratappura, 132 KV Maneri, 132 KV Dabra, 132 KV Udaipura is still to be provided to SLDC.
In last OCCM, MPPTCL informed that telemetry of 132 KV Maneri shall be integrated within 3 days,
integration of 132 KV Pratappura & 132 KV Dabra shall be done after operationalization of Malanpur Wide
Band node & procurement of RTU for 132 KV Udaipura is under progress. MPPTCL is requested to provide
present status as well as expedite the commissioning of telemetry of these sub stations.
In addition to the above telemetry of Birsingpur HPS and Zinna HPS is also not available and same
needs to be provided by MPPGCL. In last OCCM, MPPGCL informed that tender for procurement of RTUs of
Birsingpur HPS and Zinna HPS has been dropped & tendering process shall be again initiated. Further a
meeting on “Telemetry and voice communication related issues of thermal/hydel power stations” was
conducted in SLDC on dtd.30.10.18 in which SLDC requested MPPGCL to provide telemetry data channel
status for commissioning of RTU at both these locations so that commissioning may be done immediately after
procurement of RTUs. It was informed by MPPGCL that they will finalise the data channel plan in coordination
Agenda Of 66th OCCM Of MP 18
with SLDC and MPPTCL and also initiate procurement of PLCC cabinet /outdoor equipments/ VFT modems, if
required so that the data channel shall be available before commissioning of RTU. MPPGCL is requested to
provide the current status in the matter.
The telemetry of these identified Sub Stations is urgently required for monitoring of grid. Hence the
progress in the matter as well as further schedule of commissioning, including data channel, plan for
arrangement of modems, and rectification of SOE issue may please be provided by T&C.
[Action: - CE (T&C)/CE (T&P), MPPTCL]
9.2 UPGRADATION OF EXISTING RTUS & DISCREPANCY IN TELEMETRERED VALUES RECEIVED FROM DIFFERENT EHV S/S & POWER STATIONS & The present status of telemetry discrepancy including upgradation requirement is enclosed herewith as Annexure-9.2. The list of important locations where RTU upgradation is required to accommodate renewable feeders/other feeders/transformers is also given here under:-
(a) MPPGCL Generating Substations :-
1. Satpura TPS :- Sr.No.
Description Unit SLDC end values
Site end values
Pending since
MPPGCL response in meeting dtd.30.10.18
1. Gen-6 GT MW/MVAR
0/0 155/10 More than 1 year
MPPGCL informed that corrective measures have been taken & values will be cross checked with SLDC after operationalization of the unit.
2. Gen-7 GT MW/MVAR
52/5 90/10 More than 1 year
MPPGCL informed that transducer output is found to be OK in response to which SLDC requested MPPGCL to check the port of Analog card and if required may be tested with some functioning analog port.
3. Gen-6 CB Faulty Open More than 6 months
MPPGCL informed that while shifting RTU panel from old ECR to new ECR, signals has been disturbed. MPPGCL further informed that case for repairing & commissioning of digital signal in RTU panel has been prepared & is under final stage of approval & it
4 Gen-7 CB Faulty Open More than 6 months
5 220 KV TBC CB Faulty Close Commissioning
6 All 220 KV Feeder
CB Faulty More than 1 year
Agenda Of 66th OCCM Of MP 19
shall be restored within one month.
7 400 KV Astha 1 & 2
Line Reactor
N/A Commissioning
MPPGCL informed that signals of reactor are configured in database of Satpura SCADA system but values are not being conveyed to SLDC. NIT has been issued for configuration of point & it shall be completed within one month.
2. Singhaji Phase II TPS :- Sr.No
Description Unit SLDC end values
Site end values
Pending since
MPPGCL response in meeting dtd.30.10.18
1. Gen-3 MW/MVAR
N/A Commissioning
No representatives from Singhaji TPS II were present in meeting. However, officer from ED(O&M:GEN) informed that they will take up the matter with Singhaji TPS and arrange the telemetry on top most priority.
3. SGTPS :- Sr.No.
Description Unit SLDC end values
Site end values
Pending since
MPPGCL response in meeting dtd.30.10.18
1. 400 KV STN TRANSFORMER 5A
MW 150 3 More than 1 month
MPPGCL informed that order has been placed for purchasing transducers & shall be restored within one month. In response SLDC informed that transducers may be arranged from the HPS where new RTUs are installed or from T&C where several RTUS having these type of transducers are replaced with new RTUS.
2. STN TR 1 ,2 (220 KV)
CB N/A Close More than one year
MPPGCL informed that cabling work of breaker upto RTU panel is required to be done & shall be done within one month.
3. 220 KV Bus Tie CB N/A Close More than one year
4. 220/33 KV CB/MW/ N/A More than MPPGCL informed that it shall
Agenda Of 66th OCCM Of MP 20
Transformer MVAR one year be provided within one month.
5. Gen-1& 2 CB Faulty Close More than one month
MPPGCL informed that it shall be restored after unit shutdown
6. 400 KV Bus 1 Freq 49.79 49.98 More than six months
MPPGCL informed that corrective action including testing of transducer/arrangement of new transducer shall be completed within a month.
7. 220 KV Bus 2 Voltage 264 230 More than six months
MPPGCL informed that procurement of transducer is under process & it shall be commissioned by March-19. SLDC informed that recently RTU of Rajghat & Devlond has been replaced, so transducers can be arranged from Rajghat & Devlond till procurement of new transducers.
4. Gandhi Sagar HPS :- Sr.No.
Description Unit SLDC end values
Site end values
Pending since
MPPGCL response in meeting dtd.30.10.18
1. Gen-4 CB Faulty Close More than 6 months
MPPGCL informed that it shall be rectified within 15-20 days. Further SLDC informed that it is gathered from Gandhisagar HPS that when CMR is kept ON it leads to tripping of Unit. MPPGCL informed that they will check the wiring.
2. 33 KV Rajasthan(Kuakheda) feeder
MW/MVAR
N/A Commissioning
SLDC informed that the telemetry of this feeder is of utmost importance as it is an inter-regional feeder. MPPGCL informed that they will arrange for the telemetry of this feeder on priority.
5. Rajghat HPS :- Sr.No.
Description Unit SLDC end values
Site end values
Pending since
MPPGCL response in meeting dtd.30.10.18
Agenda Of 66th OCCM Of MP 21
1. Gen-1,2,3 CB Faulty Open Commissioning of new RTU
(b) Transmission/ other Generating Substations :-
Sl
No. Name of Substation whose
RTU is required to be upgraded
Name of feeders/transformers required to be included in telemetry
01 400 KV ISP
1. Telemetry of 125 MVAR Bus Reactor not available. 2. Telemetered values of 400 KV Nagda MVAR is 10 times of actual value. 2. Telemetered values of 400 KV Bus-1,2 Voltage & Frequency, 400 KV Indore-1 MVAR. 3. MVAR Values of Gen-3 & Gen-6 4. All digital telemetry not available.
02 400 KV Kirnapur Wrong MW/MVAR value of 132 KV Dongargarh
03 220 KV Seoni i.Wrong CB status of 160 MVA Xmer II (Secondary side) ii.Wrong value of 220 KV Bus II Voltage iii.132 KV Bus Voltage & Frequency
04 400 KV Bhopal 1.315 MVA Xmer-IV Main & Tie CB 2. 220 KV Shujalpur-1 MVAR
05 400 KV Astha CB status of 220 KV Mugaliyachhap
06 220 KV Rajgarh Biaora (i) 220 KV Bus Coupler & TBC CB status (ii) 132 KV Voltage & Frequency
07 400 KV Indore 400 KV Itarsi-II line reactor CB wrong status
08 400 KV Chhegaon Wrong CB status of :- i. 132 KV IC I & II ii. 220/132 KV Xmer II (Sec side)
09 220 KV Satna Wrong CB status of 132 KV Kymore, 132 KV Interconnector II & 132/33 KV Xmer II
10 220 KV Kotar Wrong CB status of 220 KV Satna 1, 132 KV Rampur Baghelan, 132 KV RTS
11 220 KV Chichli CB status of 132 KV Udaipura 1 & 2
12 220 KV Betul CB status of 220/132 KV Xmer II & 132/33 KV Xmer II
13 220 KV Mandideep CB status of 220/132 KV Xmer II & III, 132 KV Wardhman, 132 Anant, 132/33 KV Xmer
In last OCC, ISP informed that there is some problem in MFM & replacement of MFM is under
progress. Further, SLDC requested ISP to explore the possibility of utilizing transducers along with analog card in case desired MFM are not available. In view of the importance of telemetry ISP was requested to expedite the rectification work. SLDC requested ISP that in view of the life of RTU of ISP, action for replacement of the same is also required to be initiated by ISP. However no action & response has yet been taken and the discrepancies pertaining to ISP still exists. The present status may please be provided by ISP. MPERC vide Letter dated 09-08-2017 has directed to ensure proper functioning of RTUs. Therefore MPPGCL and MPPTCL are requested to provide completion schedule regarding rectification of telemetry discrepancy and upgradation of RTU’s.
Agenda Of 66th OCCM Of MP 22
[ACTION: T&C, MPPTCL & O&M: GEN, MPPGCL]
9.3 EXTENSION OF RGMO/FGMO SIGNAL TO SLDC/WRLDC :-As per IEGC 5.2(f),
RGMO/FGMO is mandatory for all thermal units above 200 MW and hydro units above 10 MW. Further
considering the high penetration of renewable to grid and also the Government target to achieve 175 GW,
it is essential to monitor operation of RGMO/FGMO at SLDC/RLDC for ensuring grid security and
compliance of regulation. Subsequently SLDC vide letter no. 07-05/RPC-27/3739 dated 18-01-2017, letter
No. SE/LD:E&T/693 dated 23-01-2017, letter No. SE/LD:E&T/34 dated 13-04-2017, letter No.
SE/LD:E&T/143 dtd.26-05-17, , letter No. SE/LD:E&T/309 dtd.19-07-17, letter No. SE/LD:E&T/980
dtd.14.03.18 requested MPPGCL/NHDC for integration of telemetry of RGMO/FGMO in RTU installed at
power station and forward the object address configured in RTU so that same may also be configured in
SLDC SCADA and RGMO/FGMO status may be displayed in SCADA system. The matter was again
taken up vide this office UO No.38 dated 21/08/2017. However, extension of RGMO/FGMO signal of
following generating units is still to be extended to SLDC SCADA system:-
S.No. Name of Generating Station
Unit.No. MPPGCL response in meeting dtd.30.10.18
1 Satpura TPS 6,7,8,9 MPPGCL informed that Unit 6,7,8,9 are not compatible for RGMO as these units are having LM3 turbines with mechanical governor. However as per the CERC order dtd.15-02-18, CERC has stated amended notification that “if a generating unit cannot be operated in RGMO, it shall be operated in FGMO with manual intervention to operate in the manner required under RGMO”.
2 SGTPS 1,2,3,4 MPPGCL informed that it is under tendering process & shall be completed within 3-4 months.
3 BARGI HPS 1,2 MPPGCL informed that equipments from BHEL have been received & commissioning shall be done during AOH of Units in 2019.
4 PENCH HPS 1,2 MPPGCL informed that generating units are in depth & weak signals are being received in RTU panel. MPPGCL further informed that they are looking after this issue & RGMO signal extension shall be done shortly.
5 Singhaji TPS Phase II 3 MPPGCL informed that they will take up the matter with Singhaji TPS and arrange the telemetry on top most priority.
MPPGCL is thus requested to kindly arrange for integration of telemetry of RGMO/FGMO in RTU
installed at power stations on topmost priority. 9.4(A) NON AVAILABILITY/ UNRELIABLE TELEMETRY OF HYDEL POWER STATIONS :-
The telemetry of Bansagar III, Tons, Pench, Bargi, Madikheda is very unreliable & frequent long
outage with abnormal delay in restoration of same is observed. The RTU availability of MPPGCL HPS is as
detailed here under :-
Agenda Of 66th OCCM Of MP 23
Name of HPS Present
Status
Availability
July-18 Aug-18 Sep-18 Oct-18
Pench Intermittent 79 88 55 60
Bansagar-III Intermittent 42 58 70 72
Madikheda Intermittent 82 92 69 65
Rajghat Intermittent 96 91 75 71
Gandhisagar Intermittent 92 90 75 72
Bargi Intermittent 93 80 75 71
Tons Intermittent 81 67 65 68
Birsingpur HPS Telemetry not provided to SLDC.
Zinna HPS
It is to mention that as per CERC communication regulation 2017, availability of telemetry is required to be
ensured more than 99.9% but as indicated above the telemetry availability of Hydel Power Stations is very low.
In meeting dtd.30.10.18, SLDC informed MPPGCL that following measures are required to be taken up by
MPPGCL for improving availability of telemetry of power stations:-
1. Arrangement of essential spares at power stations and one set of all spares at centralized location
with intimation to all power stations
2. Nomination of telemetry incharge for each power station
3. Arrangement of training to persons looking after telemetry work.
4. Arrangement of measuring instruments like level meters wherever not available.
5. Ensuring availability of RTU configuration at all power stations.
In last various OCC meetings, SLDC requested MPPGCL to provide the contact details of officers at each
power house looking after telemetry work & arrange required spares (PLCC/RTU/MFM etc.) at Power Stations
so that availability of telemetry may be achieved as desired by CERC. SLDC also requested MPPGCL to
issue order regarding telemetry site coordinators and provide the copy to SLDC. MPPGCL assured in the
meeting dtd.30.10.18 that MPPGCL will issue orders in this regard on top most priority. However the
nomination of officers is still pending to be provided by MPPGCL.
[Action :- ED(O&M:Gen),MPPGCL] 9.4 (B) NON AVAILABILITY/ UNRELIABLE VOICE COMMUNICATION BETWEEN SLDC TO THERMAL/ HYDEL POWER STATIONS :-
It is to inform that as per CERC communication regulation 2017, availability of communication channel
is required to be ensured more than 99.9%. However, despite constant pursuance, presently most of the
Agenda Of 66th OCCM Of MP 24
PLCC voice communication of various power stations to SLDC is out since long time and detailed of non-
availability as here under: -
Sr.No Name of
HPS/TPS
2 wire PLCC channel
Exchange at Power Station
Remark
MPPGCL response in meeting dtd.30.10.18
1
Bargi
PLCC channel isnot working since last 5 months.
Exchange is out since long time
1.Restoration of PLCC channel is pending due to faulty Card of the PLCC exchange at Bargi end. 2. BSNL landline number/ Mobile number not working most of the time.
AE Bargi informed that quotation from M/s ABB for purchasing of new card is still pending. SLDC suggested to check the card in spare PLCC cabinet available at other Power Houses and take the card on loan basis. During the discussion representative from Rajghat HPS informed that card is available in his Power House. In response SLDC suggested Bargi HPS take the card from Rajghat HPS and restore the voice communication of Bargi HPS at the earliest. SLDC also suggested to contact T&C division, and arrange the desired module from T&C, on loan basis. It was also requested to procure spare modules in advance so that so long outage in future may be avoided.
2
Pench
Communication from SLDC through subscriber of nearby Seoni station Exchange is working
Exchange is out since long time
1. The repair/ replacement of exchange at Power Station end is still pending. 2.Provided Idea Mobile phone at station is not working at the time of emergency. 3.Widebandequipment at Pench shall be commissioned at the end of Nov 18, therefore laying of CAT 5 cable & telephone cable from wideband equipment to Control room is required in advance to
EE from O/o CE (O&M) ensure that laying of required cable along with converter (RS232 to RS485) to shift telemetry on wideband node and extend VoIP & 2 wire voice facility upto control room of Pench HPS shall be completed before commissioning of Wideband equipment.
Agenda Of 66th OCCM Of MP 25
extend VoIP & 2 wire voice facilty.
3
Bansagar- IV
PLCC voice communication is not established
Exchange is not available
It is informed by communication officers from Satna that power amplifier of PLCC panel at Bansagar-IV was shiftied to Bansagar-III, on MPPGCL instruction. Therefore Power amplifier for Bansagar-IV is required to be arranged by MPPGCL.
Mr.Vinay, AE, Tons HPS informed that he will visit Bansagar-IV for restoration of voice communication of Bansagar-IV at the earliest.
4
Madikheda
PLCC voice channel is not working since last 2 years.
Exchange is not available
1. Exchange at Madikheda is required. 2. Coordinating efforts from MPPTCL and MPPGCL is required for restoration of PLCC channel.
SLDC informed that recently Pichore wideband node commissioned therefore 2 wire PLCC voice communication could be restored to established PLCC channel upto Pichhore wideband. Madikheda HPS informed that requirement of PLCC cabinet has already submitted to central office therefore as PLCC cabinet available to him, voice channel will be commissioned upto Pichhore substation. SLDC further requested MPPGCL officers from Jabalpur to expedite the procurement of material desired by site officers.
5
Rajghat
PLCC voice channel is not working since last 2 years
Exchange is not available
1. Exchange at Rajghat is required. 2. Coordinating efforts from MPPTCL and MPPGCL is required for restoration of PLCC channel.
SLDC suggested to extend voice facility upto Rajghat HPS while making the subscriber of 220 KV Bina in coordination with AE Bina. Therefore to commissioned above link voice channel between Rajghat HPS to 220 KV Bina shall require to be established and connect to this channel in PDH equipment at220 KV Bina to extend the voice facility of Rajghat HPS upto SLDC/Backup SLDC.
6
Gandhisagar
PLCC voice channel is not working since last 4 month
1. Coordinating efforts from MPPTCL and MPPGCL is required for restoration of PLCC channel.
It was informed by SLDC that in case of distance between wideband equipment and RTU, the RS232 to RS485 converter along with cable between these two locations is required to be laid. EE from O/o CE (O&M) assured that laying of required cable along with
Agenda Of 66th OCCM Of MP 26
2. Wideband equipment at Gandhi Sagar shall be commissioned at the end of Nov 18, therefore laying of CAT 5 cable & telephone cable from wideband equipment to Control room is required in advance to extend VoIP & 2 wire voice facilty
converter to shift telemetry on wideband node and extend VoIP & 2 wire voice facility upto control room of Gandhi Sagar HPS shall be completed before commissioning of Wideband equipment.
7
Birsinghpur HPS /TPS
PLCC voice channel is not working since long time due to faulty PLCC exchange at Birsinghpur.
The commissioning of new exchange at Birsinghpur TPS is required to be expedited.
AE Birsinghpur informed that presently voice communication between SLDC to thermal power house is proper & the commissioning of EPAX at site is under progress. AE Birsinghpur assured that the voice channel of Birsinghpur HPS shall be restored within one month.
8.
Satpura TPS
PLCC voice channel is not working since last 1 years.
Exchange is faulty since long time.
1. Repair/replacement of Exchange & Card of PLCC equipment at Satpura TPS side is still pending.
AE Satpura informed that faulty card shall be repaired at the earliest. Further, SLDC informed that the OPGW has already been laid between 400 KV Ashta and Satpura TPS and suggested that alternate path can be established using this path by installing end optical equipment.
Apart from the above, it is noticed during extending 2 wire voice facility upto Singhaji 1 & 2 TPS &
OSP HPS from nearest wide band node utilizing PLCC channel, the 2 wire print in ETL make & OG Print in
PUNCOM make is not available in PLCC cabinets at power station end. therefore voice facility is not extended
upto power stations viz. Singhaji 1 TPS , Singhaji 2 TPS & OSP. Further it may be possible that 2 wire print/
OG Module may not be available for extending voice facility upto Madikheda HPS & Rajghat HPS & needs to
be verified. Therefore MPPGCL & NHDC are requested to arrange / ensure the availability of 2 wire print/ OG
print in their PLCC cabinets so as 2 wire voice facility could be extended upto power stations utilising the
optical network.
Further as discussed in the meeting dtd.30.10.18, the list of spare RTUs & PLCC equipments is enclosed
herewith as Annexure-9.4
Agenda Of 66th OCCM Of MP 27
The restoration of above PLCC voice Communication is of utmost importance as lot of inconvenience in
system operation is observed by SLDC as voice communication through Mobile/ P&T lines is not reliable and
remains out /unreachable for most of the time.
9.5 NON AVAILABLITY & WRONG TIME STAMPING OF SOE AT SLDC SCADA
The proper receipt of Sequence of events (SOE) in SLDC SCADA system from field RTUs is an important
feature required for analysis of grid incidents. However, on some instances, it has been observed that the
SOE was not received in SCADA system and accordingly, the matter was taken up with field for verification for
proper configuration /connections of SOE data in RTUs.
After long pursuance, the matter was investigated and it was found that the settings “inf code 2” & “inf
code 4” were not correct in Dongfeng make RTUs. These settings have now verified and changed in some of
the RTUs and SOE with correct time stamping from RTUS where settings were modified is now receipt in
SLDC SCADA/EMS system. However, the verification of the same in most of the RTUs is still pending. The
matter regarding verification of SOE in all Dongfeng make RTUS was also discussed in last three OCCM
meetings and it was confirmed to arrange the same by end of August 2018. However no significant progress in
the matter has been observed.
Out of 152 RTUs, SOE verification of 50 RTUs has been completed & the list of RTUs where SOE
verification is pending is enclosed herewith as Annexure-9.5. MPPTCL is requested to provide schedule of
SOE verification and arrange SOE verification of balance RTUs on top most priority.
9.6 LONG OUTAGE OF RTUS, PROBLEM IN DATA AND VOICE CHANNELS & INTERMITTENT TELEMETRY DUE TO NOISE IN COMMUNICATION CHANNEL :-
The long outage of telemetry & substations having intermittent telemetry due to heavy noise in
communication channel is discussed in detail:-
Sl No. Name of Sub Station Out from /Remark
01 132 KV Mungaoli More than six months
02 132 KV Waidhan S/s Very intermittent
03 Pench HPS Very intermittent
04 Bargi HPS Very intermittent
05 Tons HPS Very intermittent
06 220 KV Rewa Very intermittent
Agenda Of 66th OCCM Of MP 28
07 Bansagar III HPS Very intermittent
08 132 KV Chhindwara Very intermittent
09 220 KV Anuppur Very intermittent
10 220 KV Shahdol Very intermittent
MPERC vide Letter dated 09-08-2017 has directed to submit reason for long outage for
RTU & also directed to ensure proper functioning of RTUs.
MPPTCL, MPPGCL are requested to sort out rectification of above RTU/data channel on top most priority.
MPPTCL & MPPGCL are also requested to arrange for alignment of PLCC Channel & identify/replace the outdoor equipments which injects the noise in the channel/system. [Action :- ED(O&M:Gen),MPPGCL] 9.7. UTILIZATION OF W.B NODE AT BIRSINGHPUR TPS, GANDHISAGAR & PENCH HPS
In last various OCC, SLDC informed that the W.B node at Birsinghpur TPS has already been
commissioned in 2016. However, despite constant pursuance utilization of node is still pending since last two
years due to pending work of laying of cable form W.B node location to PLCC room, Exchange room and RTU.
It was informed by SLDC that complete scheme to extend wideband facility upto RTU was prepared by SLDC
and forwarded to SGTPS around two years back. The matter is pursued by SLDC constantly. However,
required converter and laying of fiber optic cable is still pending. In meeting dtd. 30.10.18 SGTPS informed
that the procurement work is under progress and shall be completed within three months.
The matter regarding utilisation of wideband nodes at Gandhi Sagar and Pench HPS was also
discussed in OCC meetings & meeting dtd. 30.10.18 & MPPGCL was requested to ensure that distance
between wide band equipment & nearby RTU panel should not be more than 15 meter. SLDC has gathered
information with Pench HPS and Gandhi Sagar HPS and informed the distance between wideband equipment
location and RTU location is more than the recommended distance. Therefore, Pench HPS & Gandhi Sagar
HPS is required to arrange cabling along with RS 232 to RS 485 converter, from RTU location to wideband
equipment. It was informed by MPPGCL officers that will arrange required cable and converter at Gandhi
Sagar and Pench HPS before commissioning of wideband nodes.
[Action :- ED(O&M:Gen),MPPGCL] 9.8 TELEMETRY OF RAILWAY TSS SUB STATIONS:-
The telemetry of existing 38 Nos railway Traction Sub Stations & upcoming 25 new railway TSS is
required to be provided by railway for monitoring of drawal by each TSS and also monitoring of demand of
railway in MP.
Agenda Of 66th OCCM Of MP 29
In last OCC Meeting, the railway representative informed that telemetry of Railway TSS shall be
commissioned by 30th Sep. However no progress in the matter has been observed. Further SLDC informed in
the meeting & vide letter dtd.10.10.18 that before initiating commissioning of telemetry, the scheme is to be
approved by SLDC, so that any integration issue may be avoided. However, railway has not yet submitted the
architecture of telemetry scheme, details of equipments & protocol to be used. SLDC also informed that the
commissioning of telemetry shall be done only after acceptance of telemetry scheme by SLDC. SLDC also
requested that Railways shall arrange a joint meeting with the implementing agency in the matter on top most
priority to which Railways agreed but no such meeting has been arranged by Railways and no information was
submitted by railway. Railway is requested to provide present status of telemetry commissioning and arrange
a meeting with the implementing agency.
9.9 INFORMATION REQUIRED FOR PMU ANALYTICS UNDER URTDSM PROJECT:- Under the
“Unified Real Time Dynamic State Measurement” URTDSM Project, the analytics applications has been
installed at SLDC MP for which the relay setting details are required for its configuration from all the sub-
stations where PMU’s are installed and its adjacent sub-stations (list of S/s enclosed as Annexure-9.9.1). The
format for submitting the required details is enclosed as Annexure-9.9.2.
The matter has been constantly being pursued by SLDC from last 2 OCC Meetings, however still the
required information is pending to be provided by MPPTCL. The required data has been received from
SGTPS, MPPGCL. MPPTCL is requested to furnish the data at the earliest.
[Action :- MPPTCL]
ITEM NO 12 : DATE AND VENUE OF NEXT OCC MEETING :
It is proposed to hold the 67th Operation and Coordination Committee meeting of MP on 27.12.2018. The host and venue of the upcoming OCC meetings of MP is detailed below:-
122nd ckt of 132 KV Sheopur- Baroda line & LILO of its both ckt at 220 KV S/s Sheopur for 132 KV interconnection of 132 KV S/s Sheopur & 220 KV S/s Sheopur. (2nd ckt- 34 cktkm+2x1+4x5)
56 7%
13132kV DCDS line from 400 kV Ujjain to 132KV Vikram Udyogpuri (Narwar) (2x21.43)
42.86 4%
142nd circuiting of 132 kV Nepa- Dharni (MSEB line) & LILO for 132kV S/s Pipalpani (34.8 ckm 2nd ckt + 2x1.225)
37.25 73%
15 133 KV Datiya- Bhitarwar DCSS line (1x35.296) 35.296 15%16 LILO of 132 KV Badod - Garoth line at 132KV S/s Shyamgarh 2.56 20%17 132 kv DCSS Khurai- Khimlasa line (1x20.937) 20.937 21%18 132 kv DCSS Panagar - Patan line (1x22.749) 22.749 7%19 132 kv DCSS Badnagar - Chhayan Line (1x31) 31 64%20 132 kv DCSS Dhar - Teesgaon line (1x15.35) 15.35 19%21 LILO of 132 kv Ratlam - Meghnagar line at 132Kv S/s Petlawad 14.8 9%22 132 kv DCSS Udaipura - Silvani line (1x25.8) 25.8 44%23 132 kv DCSS Narsinghpur - Devnagar (1x23) 23 19%24 132 kv DCSS Karakbel - Belkheda (1x24.445) 24.445 44%25 132 kv DCDS Narsinghpur - Karakbel line (2x23) 46 31%26 LILO of 132 kv Bhikangaon Khargone line at Biston 132 KV S/s 38 10%
27 LILO of 2ND CIRCUIT OF 132KV Gwalior- Pichhore at 132Kv S/s Dabra (2X0.108) (ADB-III) (balance work) (Note: LILO at Chinour 27.364 cktkm charged on 04.08.2017)
0.216 97%
28LILO of one ckt.(Balaghat-Katangi ckt) Of 132 kV Balaghat - Seoni/Katangi line at 132 kV S/s Waraseoni (2x4.7)
9.4 60%
29 132kV DCSS Sagar - Rehli line (1x40) 40 62%30 132kV DCSS line Chichli - Palohabada (1x25.606) 25.606 7%
31LILO of both ckt of 132kv Gandhisagar - Suwasara/Garoth line at Bhanpura 220KV S/s (4x14)
56 73%
32 132kv DCSS Betul-Bisnoor/Masod line (1x35.245) 35 78%33 132kv DCDS line Guna-Bhonra (2x21.394) 21 60%34 132kv DCSS Chichli-Palohabada line (1x25.606) 25.606 7%35 132kv DCSS Damoh-Patera line (1x38) 38 69%36 LILO of 132 kv Satna-Maihar line at Satna-II S/s (2x11.047) 22.094 4%
37132kv Birsinghpur -Shahdol DCSS line (1x45) (Revised Estt. Sanc.no.0187dtd.05.09.2016)
44.821 90%
382nd circuiting of 132kv Birsinghpur -Shahdol DCSS line (1x45) (Sanc.no.0204dtd.08.12.2017)
44.821 74%
39 132kV DCDS line from Sendhwa 220 kV S/s - Pansemal 132kV line 95.69 29%
23 Medium Term Power Purchase from CSPDCL through PTC agaisnt PPA CSPDCCL dtd. 18.09.2012
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
24 Medium Term Power Purchase from Balco through PTC agaisnt PPA Balco dtd. 18.09.2012 Including Short term purchase against MTOA 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
25 Additional Power Purchase 4.87 3.27 1.58 1.58 2.65 8.43 27.44 49.8126 Energy Exchange 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0027 Banking of Energy -441.88 -369.30 -404.32 -871.65 -803.51 -867.01 144.69 -3612.9828 Sale of Power -557.64 -167.20 -801.20 -140.91 -128.76 -244.79 -89.43 -2129.9329 Total MP Schedule (Including Railway) 2588.52 3267.30 2136.46 2401.41 2457.02 2394.88 4184.46 19430.0630 Total MP Drawal (Including Railway) 2563.07 3257.72 2068.61 2387.01 2446.88 2420.78 4172.33 19316.4031 Wheeled Energy of Tawa HEG 0.00 0.00 0.00 0.00 0.01 0.00 2.19 2.2132 Wheeled Energy of Wind Farm 15.18 19.45 20.05 13.88 17.63 9.48 3.98 99.6633 Wheeled Energy of Solar Plant 68.57 61.61 45.70 33.58 32.32 44.30 57.37 343.4534 Wheeled Energy of Bio-Mass 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0035 Wheeled Energy of Ascent Hydro 1.46 1.41 1.39 1.11 1.31 1.01 1.24 8.9336 Export to MSEB (Nepa-Dharni) -6.08 -5.89 -3.94 -3.31 -3.34 -3.55 -6.13 -32.2437 Deviation Energy of MPPGCL Thermal + Infirm Energy of Singajil -0.05 -3.52 -8.37 -11.49 51.62 40.67 254.82 323.6938 Energy Purchased by MP from Wind Farm 437.86 584.49 678.72 592.59 635.88 424.36 155.44 3509.3439 Energy Purchased by MP from Solar Plant 151.93 162.97 134.33 88.86 87.34 110.60 167.81 903.85
40 Firm / Infirm Energy of HEG Mandideep+Hindalco+HEG Tawa +Trimula Ind. purchase by MP +Wheeled enrgy of CPP / IPP
60.47 38.27 113.76 73.85 91.59 47.61 16.72 442.27
41Purchased from ASN Biomass Katni + RDM Care Ind. Biogas Pariyat + Pragya Energy Pvt. Ltd. Biogas Richhai+ Arya Energy Kotma + Orient Green Power Limited, Gadarawara Bio-Mass+Shaliwahna (CHH+Umariya) + JBP MSW
24.49 7.73 6.31 2.67 2.55 6.91 3.34 53.99
42 Deviation Energy of ISP 2.68 4.21 3.27 1.74 2.23 4.24 2.68 21.0343 Schedule Energy of BLA Power against LTOA 0.00 2.16 4.82 5.49 3.50 0.00 0.00 15.9844 Schedule Energy of JP BINA Power against LTOA 165.38 155.48 111.80 91.52 90.57 100.01 206.86 921.6145 Import from bargi Left Bank Canal Power House + ISP NVDA 0.01 0.01 0.01 0.01 0.01 0.40 1.94 2.3746 Chambal Complex Excess / less Overshare by MP -1.15 -1.72 -2.27 -2.76 -3.05 -3.90 -21.47 -36.3147 Rajghat Hydel Power Station Excess / Less Overshare by MP -0.02 -0.07 -0.04 0.14 2.46 4.23 1.50 8.2048 State Supply (Ex-Power st. Bus) 5488.91 6017.75 5164.90 5084.43 5416.36 5486.17 7486.27 40144.7949 AVERAGE DAILY (Ex-Bus) 182.96 194.12 172.16 164.01 174.72 182.87 241.49 187.5950 MINIMUM DAILY (MP Periphery) 163.56 163.85 140.57 139.40 151.95 138.27 2023.45 138.2751 MAXIMUM DAILY (MP Periphery) 185.36 197.05 186.70 166.05 184.93 205.87 254.89 254.8952 State Supply (Ex-Power st. Bus):- YEAR : 2017-18 5494.33 5544.84 4725.99 4626.86 5108.56 5168.84 6313.68 36983.0953 Year ((18-19)-(17-18))*100/Year (17-18) -0.10 8.53 9.29 9.89 6.03 6.14 18.57 8.5554 Unshedule L/S : Year-2018-19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0055 Frequency Correction 5.16 8.76 4.57 4.11 3.70 5.68 7.05 39.0456 Restricted Requirement : Year-2018-19 5494.07 6026.51 5169.47 5088.54 5420.06 5491.86 7493.32 40183.8457 Shedule L/S : Year-2018-19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.0058 Un-Restricted Requirement : Year-2018-19 5494.07 6026.51 5169.47 5088.54 5420.06 5491.86 7493.32 40183.84
ENERGY BALANCE SHEETYear : 2018 - 19
All figures in Million Unit
M.P. Availability
Exchange with other States / Systems
Agenda Of 66th OCCM Of MP 47
S.NO. Apr-18 May-18 Jun-18 Jul-18 Aug-18 Sep-18 Oct-18 Yr 18-19
Discomwise Hourly Average Schedule Drawal , Actual Drawal &Over(+)/Under(-) DrawalMonth :- September 2018
FIGURES IN MW
Hrs. FREQ.
EZONE CZONE WZONE Railway
Agenda Of 66th OCCM Of MP 52
ANNEXURE-5 System Disturbance / System Incidence
1. System Disturbance on 18.8.2018 in 220kv s/s Mehgaon area: On dated
18.08.2018at around 16:45 Hrs. M.P system was normal and frequency of National Grid was 50.06Hz .At 16:49 Hrs, B-ph CT of 220kv Mehgaon-Adani ckt failed at 220kv s/s Mehgaon thereafter Bus Bar protection resulting in the tripping of following feeders : 220kv/132kv 160 MVA X-mer -I 220kv/132kv 160 MVA X-mer -I 220kv Mehgaon-Adani ckt 220kv Mehgaon -Auraiyackt
This caused the total interruption in 220kv Mehgaon s/s, 132kv s/s Pratappura, 132kv s/s Ron, 132kv s/s Bhind, 132kv s/s Lahar, 132kv s/s Seondha .There was load loss of around 121 MW and no generation loss. Supply restored by charging 132KV Malanpur-Mahgaon line at 17:17 hrs and later supply extended to all nearby s/s gradually.
2. System Disturbance on 23.08.2018 in 400kv Indore, MPPTCL: On dated 23.08.2018
at around 13:00 Hrs. M.P system was normal, and frequency of National Grid was 50.11 Hz. At 13:04 Hrs, 220kv Bus-Bar protection of Main Bus-I operated at 400kv s/s Indore, resulting in the tripping of followingelementsas given below: 400/220kv , 315 MVA, ICT-II 400/220kv , 315 MVA, ICT-III
There was no generation loss and no load loss occurred. 220kv Main Bus-I charged at 13:13 hrs, later the tripped elements got restored gradually.
3. System Disturbance on 28.08.2018 in Birsinghpur area: On dated 28.08.2018 at
around 18:00 Hrs. M.P system was normal and frequency of National Grid was 50.04 Hz.At 18:03 Hrs,220kv Bus Bar protection operated at 220kv s/s Birsinghpur,resulting into tripping of following elements, some ckts of Rewa area also tripped on over load protection.
220kv Birsinghpur-Rewackt 132kv Rewa-Mangawanckt 132kv Rewa-Zinnackt 132kv Rewa-Sagrackt 132kv Rewa-Rampur Naikin ckt. This caused the total interruption in 220kv s/s Birsinghpur, 132kv s/s Umaria.There
was load loss of around 16 MW and generation loss of around 400 MW. 160 MVA x-mer charged at 18:43 hrs at Birsinghpur. Later the other elements restored gradually and supply extended to Umaria.
4. System Disturbance on 26.9.2018 in 132kv s/s Seoni: On dated 26.09.2018at around
10:30 Hrs. M.P system was normal and frequency of National Grid was 50.04Hz .At 10:30 Hrs, B-ph CT burst of 132kv Seoni-Seoni I/C-I at 132kv s/s Seoni ,resulting in the tripping of following feeders : 132kv Seoni-Seoni I/C-I 132kv Seoni-Seoni I/C-II 132kv Benegaon-Dongargarh, 132kv Lakhnadaun-Bargickt
This caused the total interruption in 132kv Seoni s/s, 132kv s/s Mandla,132kv s/s Balaghat, 132kv s/s Lakhnadaun, 132kv s/s Baihar, 132kv s/s Lalbarra, 132kv s/s Katangi, 132kv s/s Benegaon, 132kv s/s Nainpur.There was load loss of around 146MW and no generation loss. Supply restored by charging 132kv Seoni-Seoni I/C-II at 10:42 hrs and later supply extended to all nearby s/s gradually.
5. System Disturbance on 27.9.2018 in 132kv s/s Seoni: On dated 27.09.2018 at around
18:27 Hrs. M.P system was normal, and frequency of National Grid was 49.77 Hz. At 18:27 Hrs, 132kv R-ph Wavetrap jumper of 132kv Seoni-Seoni I/C-II opened and hanged at 132kv s/s Seoni, resulting in the tripping of followingelementsas given below: 132kv Seoni-Seoni I/C-I 132kv Seoni-Seoni I/C-II
This caused the total interruption in 132kv Seoni s/s, 132kv s/s Mandla ,132kv s/s Balaghat, 132kv s/s Lakhnadaun, 132kv s/s Baihar, 132kv s/s Lalbarra , 132kv s/s Katangi, 132kv s/s Benegaon, 132kv s/s Nainpur.There was load loss of around 236 MW and no generation loss. Supply restored by charging 132kv Seoni-Seoni I/C-Iat 18:38 hrs and later supply extended to all nearby s/s gradually.
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Vol
tage
(kV
)R Y B Phase Voltage2018-06-14 15:25:00.000 - 2018-06-14 15:30:00.000
FOR ETL 41 AND 42 PANNEL1 B4LA CARD (48 V POWER SUPPLY UNIT)2 P1 LA CARD (POWER AMPLIFIER 40 W )3 P4 LG CARD (CARRIER SYNTHESER)4 P4 LA CARD (PILOT/SUPERVISION)5 O4 LC CARD (2Y4 WIRE INTERFACE )
FOR PUNCOM PANNEL1 CHANNEL MODEM UNIT2 POWER AMPLIFIER 40 W 3 POWER SUPPLY CARD 40 W4 VF INTERFACE CARD (SPEECH CARD)
FOR HONEYWELL RTU1 ANALOG TRANSDUCER FOR MW & MVAR2 ANALOG TRANSDUCER FOR VOLTAGE3 ANALOG TRANSDUCER FOR FREQUENCY4 CMR FOR CB STATUS ON ,OFF & SOE5 ANALOG MODULE D20 AHV26 STATUS MODULE D20 SHV2 7 CPU D20 ME