SOUTHERN REGIONAL POWER COMMITTEE
BANGALORE
Agenda notes for 101st Meeting of the Operation Coordination Committee of SRPC
to be held at SRPC Bangalore on 11th November 2014
1.
Confirmation of the Minutes of the 100th Meeting of OCC held at JSWEL,
Torangallu, Karnataka on 13th October 2014
2.
Monthly Outage Plan
2.1
ISGS/CGS: Generating Units
a) Shut Down Proposals for November/December 2014
b) Shut Down carried out during October 2014 along with reason for
deviation if any.
2.2
ISTS/State Sector Transmission Elements
a) The proposals for outages of Transmission lines/elements received
from various utilities by 3rd of every month would be posted on SRPC
website.
b) It is requested that the information may be furnished in the specified
format in Excel form through E-mail to the following address. It is also
requested that the date and time formats should be entered in correct
excel format.
[email protected]
c) As per the NLDC outage procedure, the outage proposals for the
subsequent month were to be submitted by 3rd of each month.
Constituents to furnish the outage proposals for December 2014 by 3rd
November 2014.
d) Constituents/utilities are requested to furnish the information about the
shut down carried out during last month against shutdown approved
and also information regarding unapproved/emergency shutdown in
their respective system. SRLDC is also requested to furnish the details
of shut downs availed / not availed during the previous month by
various utilities against the OCC approved shut downs.
e) KSEB, APTRANSCO, KPTCL, Puducherry & TSTRANSCO had
furnished the planned shutdown of the STU lines/elements for the year
2014-15. TANTRANSCO vide letter dated 23.10.2014 had furnished
tentative plan of outage of 400 kV equipments and elements in respect
of Kayathar SS for the period of October 2014 to March 2015.
TANTRANSCO to furnish Outage plan in respect of 400 kV
Transmission lines/elements, Inter-state lines & Generation evacuation
lines for the period November'14- March '15.
3. LGBR for upcoming five months
a) Schedule of Hydro and Thermal Generation.
b) Details of anticipated assistance from other sources including bilateral
assistance.
c) Anticipated Consumption.
d) Shortfall/Surplus if any and how the same is proposed to be met.
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 1
e) Loss of Generation due to fuel shortage- Action plan for meeting their
demand and short fall by constituents.
f)
g)
Loss of generation due to coal shortage/technical problem needs to
be furnished for onward transmission to NLDC by 1000 hrs on daily
basis.
Load Generation Balance in real time.
h) Status Review of ATC/TTC calculation by SLDCs.
i)
Submission of LGBR on day ahead basis in specified format or
submission of network data in PSSE format (.raw files).
 One time validation of the model along with node wise data for
March 2014 by 5th November 2014.
(Item No. 12 (a) (b) (e) & (f) of enclosed SRLDC letter dated 24.10.2014.
j)
In the earlier OCC Meetings the need for having quality node wise
data from the constituents was emphasized before computation of
ATC for optimal utilization of transmission system. Follow up of the
action plan w.r.t 20.10.2014 Meeting (Minutes of the Meeting at
Annexure-3A). Constituents had agreed to furnish balanced PSSE
case for the time period under consideration.
S.No Data for Time
(in Hrs)
1
03:00
2
09:00
3
15:00
4
19:00(October to March)
19:30(April to September)
4.
Period for Consideration
(in Hrs)
22:00 to 05:00 & 22:00 to 24:00
05:00 to 11:00
11:00 to 17:00
17:00 to 22:00
Review of the Power Supply Position /Inflows
Constituents to furnish the reasons for deviation:
a) Actual with respect to anticipated (MW & MU) for availability and
requirement.
b) Generation variation category wise with respect to MoP targets/LGBR
figures.
c) Inflows to major reservoirs: Actual w.r.t. 10 year moving average and
w.r.t. same month last year.(MU)
5.
Issues for Deliberation
5.1 Status review of action plan of all points discussed in OCC. (Annexure-5A)
5.2
ATC/TTC issue raised by KSEB
KSEB vide letter dated 10.10.2014(Annexure-5B) pointing out that the margin
released for PX for 11.10.2014 had not considered the additional 100 MW
corridor which was available due to non scheduling of 100 MW power to KSEB
on MTOA basis and had requested that the above margin for STOA/PX
transaction till the MTOA is operationalised.
Also it was informed that the margin released for collective transaction to S2
region on 15.10.2014 was not taken into account the outage of Simhadri Units. It
was noted that Simhadri Units (2x500) MW were out since 12.10.2014. S1-S2
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 2
corridor was split on all these days during peak hours and the quantum cleared
to S2 for 15.10.2014 was only 188 MW @ Rs. 10.53 as against Rs. 6.15 in S1
region. The LTA quantum of S2 constituents from Simhadri is around 330 MW.
Margin of around 450 MW(330+128) was available between S1-S2 on all these
days. KSEB requested that the above margin for PX transaction till Simhadri
units are back in service.(E-mail sent by KSEB in this regard is at Annexure5C)
SRLDC response in this regard is at Annexure-5D.
The LTA allocation to SR issued by the CTU on 22.09.2014 had been kept in
abeyance as per the RoP of Hon’ble CERC dated 15.10.2014. Further hearing
was scheduled for 27.10.2014. KSEB vide letter dated 25.10.2014(Annexure5E) informed that KSEB had contracted power from S1 generators to the extent
of 300 MW. Advance/FCFS applications to the generators were rejected by
SRLDC quoting no margin in S1-S2 corridor and the available margin was being
released for PX transactions. It was requested by KSEB that the STOA
transactions may be allowed through S1-S2 corridor on FCFS basis till a final
decision on LTA/MTOA was taken by the Commission.
KSEB vide letter dated 30.10.2014(Annexure-5F) had noted that no corridor
was being released for PX transaction to S2 region for past few days. On
29.10.2014 Ramagundam Unit 4 went on boiler tube leakage
at 0859 hrs.
The LTA margin to S2 region due to the above outage was not considered for
PX transaction on 30.10.2014. The corridor reserved for MTOA allocation of 100
MW to KSEB from 01.10.2014 was also not considered for PX transactions for
the past few days. It was requested that the above margins may kindly be taken
into account for the collective transaction for 31.10.2014.
5.3
Scheduling power to TANTRANSCO regarding:
TANTRANSCO vide letter dated 21.10.2014(Annexure-5G) had stated that
while analyzing the deviation of drawal schedule for the period April to
September 2014(Till September 28th) had observed that Kerala had been
permitted to overdraw 333 MU and Tamil Nadu was deprived of their due share
by 280 MU for the same period. It was noted that during the period from April
2013 to March 2014 Kerala had drawn 523 MU over their schedule while Tamil
Nadu had under drawn 465 MU.
It was informed by TANTRANSCO that SRLDC is continuously insisting Tamil
Nadu to reduce the deviation. TANTRANSCO requested SRLDC that the
deviation in schedule may kindly be monitored and regulated with reference to
the prevailing situation on holistic approach and do the needful without
depriving the due share to Tamil Nadu.
SRPC’s reply on this issue was communicated to TANTRANSCO vide letter
dated 29.10.2014(Annexure-5H). SRLDC reply dated 31.10.2014 is enclosed
as Annexure-5I.
5.4
Review of SPS operation in respect of 765 kV Raichur-Sholapur line:
In the earlier OCC Meeting, the following are noted:

As could be seen from minutes of OCC meeting of WRPC, there had been
inadequate relief from the constituents/generators of WR and it appeared that
some of WR generators had not implemented the SPS yet. OCC had
expressed that constituents of other region should also contribute in providing
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 3


5.5
SPS relief and SR contribution was not sufficient to address the issue. OCC
expressed that this matter need to be taken up with NLDC.
SRPC vide letter dated 13.08.2014 communicated to NLDC had requested
that this matter may kindly be arranged to be taken up with Western Region
for needful.
It was noted that the reply from NLDC was still awaited regarding SPS
implementation in WR. SRLDC had been requested to kindly follow up the
status in this regard.
Energisation of 3rd Transformer(3x105) MVA and 400 kV bus at 400 kV
Substation Madakkathara. :
KSEB vide letter dated 27.10.2014(Annexure-5J) informed that the installation of
400/220 kV, 315 MVA transformer(3rd ICT) and its allied works were completed at
Madkkathara and was ready for commissioning. The details to be satisfied before
charging the new element as per the check list had been forwarded to SRLDC.
Energisation of the newly installed 400/220 kV,315 MVA transformer was proposed
on 31.10.2014 and test charging of the 400 kV and 220 kV extention pipe bus to
transformer was proposed on 28.10.2014. KSEB sought for necessary approval for
Energisation of 3rd Transformer (3x105) MVA and 400 kV bus at 400 kV Substation
Madakkathara.
5.6
Segregation of AUFR, df/dt and SPS relief among AP and Telangana
APTRANSCO/TSTRANSCO
had informed that they had segregated AUFR and
df/dt settings as communicated vide SRPC letter dated 13.06.2014 and details of
relief from identified feeders also had been furnished. For other SPS schemes
Andhra Pradesh and Telangana were to apply a ratio of 0.48 and 0.52. Segregation
of loads into four groups as per IEGC clause 5.4.2. were to be ensured.
 AP and Telangana to furnish the list of additional feeders(AUFR and
df/dt) in order to realize the SRPC recommended relief quantum.
AUFR
df/dt
Recommended Implemented Recommended Implemented
AP
1582
860
1200
706
TS
1686
1052
1279
700
 APTRANSCO and TSTRANSCO to furnish the segregated list of
feeders for other protection systems viz SPS.
 SCADA mapping of all the feeders under AUFR and df/dt protection
scheme should be coordinated by SLDCs of AP and Telangana.
5.7
Sharing of infirm power from 800 MW Sri Damodaram Sanjeevaiah TPS,
Krishnapatanam of AP to Telangana state Distribution Companies.
It was noted that other issue was under consideration of higher authorities.
5.8
Allocation of Power to AP DISCOMs from Generating Stations located in
Andhra Pradesh /Non-scheduling of power generation by APSLDC from
shared projects of APGENCO:
It was noted that the issues were under consideration of higher authorities.
5.9 PSS tuning of generators required urgently as per IEGC
In earlier OCC Meetings, SRLDC had highlighted the need for reviewing / retuning of PSS of all the major generators in the region. SRPC / CTU were
requested for a suitable action plan in this regard and avail the services of
experts if required on urgent basis. It was noted that in the meeting taken by
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 4
Secretary (Power) on 11th March 2014, to discuss the Task Force Report, CTU
had been entrusted the responsibility of PSS tuning. The issue had been
deliberated in the TCC/SRPC meetings held on 25th /26th July 2014 and was
requested to CTU to take up the matter appropriately.
In the 99th OCC Meeting SRLDC had informed that there were sudden and
spontaneous oscillations in all India Grid on 9th to 12th August 2014 and had
requested ISG Stations of SR to furnish certain details.
KSEB had communicated the details sought by SRLDC in this regard. Other
constituents were to revert back on this issue, even though there was no reported
disturbance of SR generating units, utilities were to submit their replies sought in the
letter.
5.10
Coal Stock position in different thermal stations in SR:
Generators to appraise the forum with the current Coal stock/Coal supply/Coal quality
status.
5.11
Follow up on Petition No.302/MP/2013
As per RoP in respect of Petition No.302/MP/2013, all SLDCs to report with details of
RGMO/FGMO response of each generating station within their control areas and the
details of having taken up the matter with respective SERC in case of lack of response
or inadequate response from the generating units. TANGEDCO and APGENCO had
also been directed to submit on Affidavit, detailed note explaining how irrigation
requirement is coming in the way of implementation of FGMO/RGMO, after discussing
the matter, if required, within their State Irrigation Department. The issue had been
deliberated in the TCC/SRPC meetings held on 25th /26th July 2014, earlier OCC
meetings and Special Meetings held to discuss on FGMO/RGMO issues. SRLDC had
informed that they had posted the two events i.e 15.09.2014 & 20.09.2014 in the web
group for RGMO analysis.
All the SLDCs to analyze the response and take up with respective
generators in their control areas. The details may be made available to
SRLDC & SRPC. The visibility of RGMO status to be implemented by all the
generators.
5.12
Over Loading of 230 kV Hosur-Shoolagiri line
In the 100th OCC Meeting TANTRANSCO informed that approval was accorded
for 2nd circuit of Hosur-Shoolagiri and the approval was under progress for
Uddanapalli (near Hosur) SS. Tendering was under progress for Gurubarapalli
S/S near Shoolagiri.
KPTCL was requested to expedite the alternate arrangements for supply to
Yerrandahally and also to furnish specific details and progress in each OCC.
KPTCL/TANTRANSCO to update the status.
5.13
Implementation of URTDSM (PMU) project in Southern Region
It was noted that the schedule for completion of the project was 24 months from
the date of award. A meeting was held on 19.09.2014 at SRPC Bangalore with
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 5
all the coordinators of the utilities, SR I, SR II, SRLDC, SRPC and LD & C wing
of PGCIL to sort out the coordination issues for smooth implementation of the
project.
SR I & SR II, PGCIL to update on the Status.
5.14
Sudden changes in Load in the SR grid
The matter regarding sudden change in drawal by beneficiary entities of SR has
been under discussion in various forums of SRPC. Constituents are requested to
take necessary measures to ensure that Clause 5.2(j) of IEGC is not violated and
the actions initiated in this regard duly intimated to SRPC.
(Item No. 2 (b) of enclosed SRLDC letter dated 24.10.2014).
5.15 Upcoming LGBR and Transmission Scheme details
In the 24th SRPC meeting held on 15th March 2014 SRPC Secretariat was to
present ‘Big Picture’ of the upcoming LGBR and Transmission issues. Draft LGBR
for upcoming 5 years and the short term and long term transmission constraints in
SR had been prepared by SRPC Secretariat and was available in the SRPC
website. In this regard the details of Status of Transmission schemes along with
forest clearance/ROW issues etc, comments on Draft LGBR for upcoming 5
years comments on Operational feedback on transmission constraints for the last
quarter (January –March 2014) and future expected constraints in SR Grid
submitted to CEA, CTU & CERC by NLDC were still awaited from most of the
constituents.
Utilities are required to furnish the comments at the earliest.
The issue was deliberated in the 25th/24th SRPC/TCC Meetings held on 26th/25th
July 2014.
5.16
Low Voltage and UV Relay
The issue had been deliberated in the ealier OCC Meetings and 25th/24th
SRPC/TCC Meetings held on 26th/25th July 2014.
Voltage profile needed to be maintained within IEGC limits else utility has to go
for UVR as mandated in IEGC/CEA regulations. Implementation of UV relay was
one of the Recommendations of the Enquiry Committee.
 Karnataka and Tamil Nadu to implement the scheme by Dec 2014. Status
update.
(Item No. 3 (e) of enclosed SRLDC letter dated 24.10.2014).
5.17
Low Voltages and High MVAR drawal at Udumalpet:
SRLDC vide letter dated 20.06.2014 had informed that during past few days the
voltage at Udumalpet area was decreasing. The MVAR drawal were also very
high. A study was conducted to alleviate the measures. There were some
concrete actions listed in the meeting held on 08.07.2014 (on withdrawal of wind
generation, LVRT, low voltages etc.). The issue was further deliberated in the
25th/24th SRPC/TCC Meetings held on 26th/25th July 2014.
In the 100th OCC Meting TANTRANSCO was requested to expedite and revert
back on the action taken in this regard to SRPC/SRLDC within one week.
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 6
5.18 Low frequency operation of the grid - Issue raised by TANTRANSCO
TANTRANSCO vide letter dated 20.09.2014 had expressed their concern about the
low frequency operation prevailing in All India Grid (daily from 1800 hrs or 1900 hrs
and persisting for more than one hour). It was noted that low frequency operation
was noticed in the All India Grid particularly during the evening peak hours from
19:10 hrs on 21st, 23rd, 26th, 27th, 28th August 2014 and on 2nd September 2014 due
to huge change in power flow (800-900 MW) between regions of the integrated grid.
It was also pointed out that in case of any of major generating unit or line tripping,
the situation would further deteriorate causing protection systems to act. It was
requested by TANTRANSCO that this issue may kindly be taken up with NRLDC
and timely action may be taken by them to restrict higher quantum of power transfer
between regions (SR-WR/ SR-ER).
In the 100th OCC Meeting it was agreed by SRLDC that the observations made by
TN & constituents would be studied and would be taken up with NLDC, in case
action was required from constituents of other Regions.
 Status update by SRLDC.
KKNPP Related Issues.
5.19
Special Meeting was held on 12th March 2014 at SRPC Bangalore to deliberate
on the issues related to KKNPP. The following issues were discussed.
•
Auto reclose with 11/2 Breaker scheme.
 KKNPP had a similar scheme was in trial operation at RAPS station for
10-12 days. All possible efforts would be put to ensure the A/R scheme
before COD after successful operation at RAPS station.
•
SCADA inputs to be ensured from KKNPP:
 Regarding the pending SCADA input to SRLDC, alternate method was
being studied by KKNPP and they would revert back.
•
Interpretation of Capability Curve(limiting MVAR absorption to 100 MVAR)
 MVAR capability curve limit was based on the operational experience of
1,000 MW units in Russia and Bulgaria and the unit was absorbing upto
105 MVAR. Issue had been taken-up with concerned.
•
Status review of changing GT tap position at Kudankulam NPP corresponding
to 400 KV & Review of absorption / injection of MVAR.
 KKNPP had stated that the issues had been taken-up with concerned and
they would revert back soon.
It was noted that KKNPP should ensure pending SCADA inputs to SRLDC and auto
reclose with 11/2 Breaker scheme before COD.
(Item No. 8(4) & 13 (f) of enclosed SRLDC letter dated 24.10.2014)
5.20
Collection of data regarding Power Supply to Rural Areas
CEA vide letter dated 09.04.2014 had informed that in the Meeting held at MoP
on 09.04.2014 it had been decided to collect the data invariably from DISCOMs
in a simplified format. SRPC vide letter dated 11.04.2014 enclosing CEA letter
dated 09.04.2014 had requested that the data in this regard in the enclosed
format may please be arranged to be communicated to SRPC Secretariat at
the following E-mail addresses:
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 7
[email protected]
[email protected]
Data to be communicated by first week of the month for previous month.
5.21
Taking all available Inter-Regional lines into service
Status of charging of 220 kV Upper Sileru- Balimela line was discussed in the
25th/24th SRPC/TCC Meetings held on 26th/25th July 2014 and it was decided to
conduct another round of trial operation on Upper Sileru- Balimela line. In the 98th
OCC Meeting it was informed by SRLDC that ERLDC had written a letter in the first
week of August 2014 to Odisha for trial operation. In the 99th OCC Meeting it was
decided to have a trial operation of Upper Sileru-Balimela inter regional line from
19.09.14. SRLDC was requested to take up the issue with ERLDC/NLDC.
Subsequently SRPC vide letter dated 16.09.2014 had taken up the issue with ERPC
and requested that the matter may kindly be taken up with Odisha so that trial
operation may commence from 19th September 2014.
In the 100th OCC Meeting SRLDC had informed that ERLDC was following up the
issue with Odisha and had called for a special meeting. NLDC had also taken up the
issue with CEA and a meeting may be called in 10-15 days. SRLDC was requested to
follow up with NLDC/ERLDC
(Item No. 6 (e) of enclosed SRLDC letter dated 24.10.2014).
5.22
Compiled Telemetry status – Utility wise- as directed by Ho’ble Commission
The issue was being heard in CERC’s Suo-moto Petition No. 56/5M/2013.
UPCL, MAPS, KGS & KKNPP may furnish the compliance status of pending SCADA
inputs within 15 days. Details in this regard were available on SRLDC web site. It was
noted that data from Talcher STPS was coming up to SRLDC but was yet to be
integrated with the new system.
5.23
Implementation of RRF Mechanism
In the 91st OCC Meeting provisions of CERC Order dated 07.01.2014 in
respect of Petition No. 356/SM/2013 were noted.
Forecasting and scheduling of Wind Generation was to continue and the
data needed to be preserved.
5.24
Pollution Mapping
Status update on installation of dummy insulators and 1st set of readings.
TANTRANSCO vide letter dated 15.10.2014(Annexure-5K) had submitted
the status of Pollution Mapping in Tamil Nadu system. Puducherry vide letter
dated 16.10.2014 (Annexure-5L) had furnished the information in this
regard.
 All the utilities were requested to send the status of installation of dummy
insulators and complete the installation before first set of readings.
5.25
Vallur-Kalivanthappattu & Vallur-Almathy lines insulator replacement
PGCIL was requested to complete the insulator replacement immediately after
the completion of KVPT-Pugalur lines. SR I, PGCIL was requested to finalize the
dates and entire replacement was to be completed by Dec 2014.
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 8
5.26
Transmission Line Patrolling Protocols/ Guidelines
Transmission Line Patrolling Protocols/ Guide Lines has been furnished to CERC
vide letter dated 21.05.2014. Communication has been sent to constituents vide
letter dated 21.05.2014 for implementation/necessary action.
Transmission Line Patrolling Protocols/ Guide Lines are to be followed.
Categorization of the lines has to be done and monthly compliance report of the
Patrolling is required to be furnished to SRPC/SRLDC.
5.27
NPC/Implementation of Enquiry Committee
5.27.1 Implementation of measures to prevent Grid Disturbance
A. Third party Protection Audit:
CERC Petition No. 146/MP/2013 with I.A 36/2013
Status on Phase I(01.05.2014) & Phase II (01.09.2014) activities.
(Item No. 7 (g) of enclosed SRLDC letter dated 24.10.2014).
A Special Meeting had been conducted on 19.08.2014 to discuss the progress in detail.
The
minutes
of
the
meeting
are
available
at
the
link
http://www.srpc.kar.nic.in/website/2014/meetings/protection/mspcscm19-08-14.pdf
It was noted that DPR of KSEB had been provisionally approved by Appraisal
Committee for PSDF fund utilization. Andhra Pradesh had submitted DPR to NLDC
(Nodal Agency for PSDF fund). Other states/utilities had been requested to submit the
DPRs to NLDC. It was noted that KPCL vide letter dated 22/26th August 2014 had
sought time extension for the Compliance of the Hon’ble Commission’s Order on Petition
No. 146/MP/2013 with I.A 36/2013 on behalf of KPCL.
Status update. All the utilities were requested to put sustained efforts in completing the
pending works.
(Item No. 7 (g) of enclosed SRLDC letter dated 24.10.2014).
B.
Reactive Power Planning
Utilities to furnish schemes relating to Reactive Power Planning including at
distribution level. The time schedules for implementation would also be
indicated. All the states should finalize the schemes at distribution level and
submit to SRPC. The proposals may be taken up with NLDC for PSDF
funding, if found feasible.
TSTRANSCO had taken up the issue with their DISCOMs vide letter dated 25.10.2014
(Letter copy at Annexure-5M). DISCOM wise list of feeders emanating from EHT
substations having power factor below 0.95(lag) for the month of September 2014 was
also furnished and requested DISCOMs to take suitable actions to realize the required
reactive power compensation is maintained at respective 33 kV substations for
improving power factor and also reactive power planning be intimated to SRPC on
regular basis.
C. Ensuring proper functioning of UFRs and df/dt relays
All the constituents are requested to improve the visible relief and achieve 100%
mapping.
KSEB, AP & Telangana had approached Hon’ble CERC for
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 9
exemption/extension of compliance. Also TN and Karnataka needed to approach
Hon’ble CERC for exemption/extension of compliance. All constituents were also
requested to give specific action to improve the relief realization through AUFR and
df/dt.
With respect to the RoP of Review Petion No. 7/RP/2013 filed by APTRANSCO,
Hon’ble CERC had directed that the report / recommendations was be submitted on
or before 20.07.2014. Order on Review Petition No. 7/RP/2013 filed by APTRANSCO
by Hon’ble CERC was awaited.
SRPC vide letters dated 21.10.2014 & 28.10.2014 (Annexure-5N)
enclosing copy of letter dated 16.10.2014 & 24.10.2014 respectively
received from SRLDC furnishing the observations(SCADA
visibility/Relief) for the period 01.10.2014 to 10.10.2014 and
11.10.2014 to 20.10.2014 had been forwarded to all the concerned
utilities. It had been requested that the matter may kindly be arranged
to be examined urgently and remedial action arranged so that the
available relief is in line with the declared relief.
All constituents are requested to give specific action to improve the
relief realization through AUFR and df/dt.
D.
Islanding schemes
It was noted that all the works related to existing Islanding schemes were
completed. Modifications as per recommendations of Task Force were under
study in PCSC
5.27.2 Reporting the Status of implementation of the recommendations of the
Enquiry Committee
Status as on last day of the month to be forwarded by 3rd day of the following
month, and that as on 15th of the month to be forwarded by 17th of the month All
the constituents were requested to furnish timely status updates.
5.27.3
Review of Zone 3 Philosophy
The issue had been deliberated in Protection Sub-Committee Meeting held on
21st November 2013 and settings for critical 400 kV lines had been finalized for
implementation.
5.27.4 Ring Fencing of Load Dispatch Centers
The status report on this was to be submitted every month to the NPC
Secretariat. The report had not been received from any of the SLDCs/Transcos.
It was requested to kindly send the status updates in a timely manner.
5.27.5
Implementation of CEA Regulations
CEA Regulations are to be implemented by all utilities.
5.27.6
Number of Stages for AUFLS
All four stages(49.2, 49.0, 48.8 & 48.6 Hz) of UFR in the region had been
implemented in SR.
5.27.7
Methodology for determination of quantum of load for AUFLS in
regions
different
Based on the communication received from CEA vide letter dated 6th August
2013 State-wise Break-up of the UFR quantum had been communicated for
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 10
implementation. In the 95th OCCM, SRPC had informed that revised
computations had been worked based on 2013-14 data. Since there was only
minor shifting among the constituents, the forum agreed for existing quantum till
further directive from NPC.
5.27.8
Implementation of Demand Management Scheme (IEGC 5.4), Grid Security
Expert System and Demand Estimation
CERC vide order dated 20.02.2014 had observed monitoring of
parameters for 6 months before considering the GSES scheme.
5.28 Present Generation level at RTPS Unit VIII
In the 100th OCC Meeting KPCL informed the unit was likely to achieve full load
by October 3rd week.
5.29 Energy Generation data Management from Renewable Energy Sources
Energy Generation from RES connected to Grid is being collected by CEA
from SLDCs. Action taken to w.r.t. minutes of the Meeting held on 8th
November 2013.
All constituents were requested to initiate appropriate steps in this regard.
Status update.
In the 25th SRPC Meeting the issue regarding integration of wind generation
being a natural resource with variability related issues etc was deliberated. A
Meeting was conducted on 16th October 2014 at SRPC Bangalore to discuss on
the same. The copy of the Minutes of the Meeting is at Annexure-5O.
Constituents were requested to study and furnish their comments/observations. It
was
also
requested
to
furnish
commercially/operationally
viable
mechanism/schemes for deliberations in the next Meeting which is scheduled for
12th November 2014.
5.30 Upcoming Generating Stations
In the 100th OCC Meeting the following schedule of commissioning was given
by the concerned:
1) Unit I of Krishnapatnam JV (SDSPP) :COD 2nd week of November 2014.
2) NTECL 3rd Unit : 1st week of Dec 2014(extension for infirm power injection
had been sought till December 2014).
3) NLC II : end of Oct 2014 ( extension for infirm power injection had been
sought till March 2015).
4) M/s Coastal Energen PP : December 2014
5)
M/s Hinduja PP : January 2014
 Identified ATS for SDSPP needed to be to expedited and completed by
APTRANSCO at the earliest

5.31
(Item no 11 of enclosed SRLDC letter dated 24.10.2014)
Islanding Scheme: Priority for Railways in the matter of Restoration of
Supply
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 11
Four Special meetings had been held in this regard on 23.07.2013, 23.09.2013,
22.11.2013 & 12.02.2014. Minutes of the meeting held on 12.02.2014 are
available at http://www.srpc.kar.nic.in/website/2014/meetings/special/mnsm-cmp12-02-14.pdf.
All the SLDCs had finalized and notified the Operating procedure with respect to
traction feeders. All the SLDCs were requested to establish the hot links between
TPC and SLDC wherever pending.
5.32
System Strengthening in Tamil Nadu
The issue regarding over loading of lines of Kolar - Hosur and SV ChatramPuducherry lines, load generation balance in Chennai area and associated
transmission/generation evacuation issues had been deliberated in various
forums of SRPC. Decisions taken in the Special TCC Meeting held on
08.05.2014 and Special meeting held on 30.05.2014(in which CEA and CTU had
also participated) were needed to be adhered.
TANTRANSCO/PGCIL had informed about the status/ commissioning dates of
transmission elements as below:

Tiruvalam-Melakottiyur (PGCIL):

Pugalur-Kalavindapttu(TANTRANSCO) : 1st ckt commissioned on 23.07.2014
Commissioned on 24.07. 2014
2nd ckt by October 2014

Mettur-Singarpettai-Tiruvalam(TANTRANSCO): Work awarded stage
Completion by 15th Nov 2014

Almathy-Tiruvalam (TANTRANSCO): Oct 2014.
 Tiruvalam SS and downstream system (TANTRANSCO) :
 1st ICT charged. 2nd ICT charged on 06.10.2014
 LILO of Tiruvalam-SP Koil completed.

LILO of Tiruvalam- Singarpettai completed on 07.10. 2014.
 Other downstream N/W by December 2014.
TANTRANSCO and PGCIL were to ensure that the projects are expedited and there
is no further delay.
(Item No. 11(b) of enclosed SRLDC letter dated 24.10.2014)
6.0
Grid Frequency
6.1
High frequency
a) High frequency at Load Change Over.
b) Status review of implementation of staggered load change over
within the constituents, as per the decision of 23rd SRPC meeting,
moderating own generation, surrendering of ISGS power in
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 12
advance and other actions by Regional Entities to avert high
frequency excursion.
c) Summary of deviation statement of each ISGS when frequency was
>50.05 Hz..
d) Under Drawal by Tamil Nadu
(Item No. 2(a) (b) & (c) of enclosed SRLDC letter dated
24.10.2014.
6.2
Low Frequency
a) Summary statement of different violation messages issued by
SRLDC to each constituent as per new IEGC Amendment (Till
20.10.2014)
b) Low Frequency Over Drawal by Tamil Nadu.
c) Status Review of implementation of ADMS.
(Item No. 1(a), (b) & (c) of enclosed SRLDC letter dated 24.10.2014)
7.
7.1
Voltage Profile
Low Voltage
a) Low voltage at Bangalore, Trichur, Palakkad, Udumalpet & Cochin
b) Action to avert low voltage profile. Messages and letters issued by
SRLDC.
c) Details of Capacitors installed in October 2014. Details of the
healthy/faulty capacitors to be furnished.
d) Installation of under voltage Relays in SR. Status
(Item No. 3 (a), (b) ,(c), (d) & (e) of enclosed SRLDC letter dated
24.10.2014)
7.2
High Voltage
a) High voltage at Vijayawada, Gooty, Kurnool, Vemagiri, Srisailam,
Hiriyur and Narendra.
b) Messages and Graphs.
c) Review of recommendations as per MVAR capability testing report
SR
d) Status review of implementation of tap change as per Special
Meeting held on 23.06.2014.
e) Status review of Shifting of Hoody line reactor to Guttur S/S
f)
Status review of commissioning of Bus Reactors, Line Reactors and
SVCs as agreed in the Standing Committee meeting. Status of
commissioning of Bus Reactors at Raichur, Vemagiri, Guttur, Kaiga
etc.
 Requirement of additional 125 MVAR Bus Reactor at Kaiga was
discussed in the 37th Meeting of Standing Committee of Power
System Planning of SR held on 31st July 2014. It was noted in the
minutes(Para 10.3) that it was agreed by NPCIL that they would
provide 2x125 MVAR reactor and the 63 MVAR reactor may be used
as a spare.
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 13
Subsequently NPCIL vide letter dated 25.09.2014 NPCIL had furnished their
comments on the above quote from the minutes. In the letter NPCIL informed
that implementation of 1 x 125 MVAR bus reactor was under review (for which
PGCIL conducted studies) and not agreeable for implementation of 2nd 125
MVAR reactor & usage of 63 MVAR reactor as a spare.

8
(Item No.4 (a), (b), (c), (d) (e) & (f) of enclosed SRLDC letter dated
24.10.2014).
Network Protection/Security issues
8.1
Status review of AUFR, df/dt & Automatic disconnection of Radial
feeders
8.1.1 Load availability in the identified feeders where AUFR is
implemented.
8.1.2 Status Review of Mapping the AUFR , df/dt feeders at SLDC as per
CERC order no 263/MP/2012
 As per clause 9 (2) of CEA (Grid Standards) Regulations, 2010, all
constituents shall submit a detailed report of operation of UFR/
Operation at different frequencies to SRLDC and SRPC on daily
basis.
 States to furnish Substation details (address along with contact person
mobile/phone numbers) where UFR& df/dt were installed. List of feeders
connected to the relays along with their loads should also be furnished.
(Item No.7 (a)of enclosed SRLDC letter dated 24.10.2014).
8.2
Status Review of SPS in Southern Region
(Item No.7 (h) of enclosed SRLDC letter dated 24.10.2014).
8.3
8.4
Status Review of tripping details/reports received in October 2014
Contingency plan for loss of wind generation & LVRT Implementation by
TN & Karnataka.
 As per the final CERC order dated 22.02.2014 in respect of the
Petition No. 120/2011, CERC had directed TANTRANSCO to take
necessary steps to implement automatic demand side management
scheme to deal with the emergency situations such as sudden
variation of wind generation or forced outages etc. and submit the
monthly progress report to SRLDC and SRPC in this regard.
TANTRANSCO had communicated the list of feeders along with the load and
the logic to be implemented in Automatic Demand/Load Disconnection to P &
C wing of TANTRANSCO .
Necessary action may please be arranged urgently to comply with the
orders of Hon’ ble Commission
(Item No.4 (c &d) of enclosed SRLDC letter dated 24.10.2014).
8.5
Non-furnishing of tripping analysis, DR & EL printouts with in 24hrs as
per IEGC by the SR Regional Entities.
 All tripping related information would be uploaded in SRLDC web
based program. FIR would be furnished within 10 to 20 minutes of the
incident. Non furnishing of tripping analysis, EL and DR printouts within
24 hours in line with IEGC/CEA regulations by the SR regional entities.
CERC Order on Petition No. 146/MP/2013.
(Item No.7 (e) of enclosed SRLDC letter dated 24.10.2014).
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 14
8.6
Submission of Declaration on availability & healthiness of control,
monitoring and Protection equipments / defense mechanism Schemes in
SR on monthly basis by all the Regional Entities.
(Item No.7 (e) of enclosed SRLDC letter dated 24.10.2014).
8.7 Status Review of Automatic Load Disconnection Scheme for overdrawing
constituents (IEGC clause 5.4.2(c).
8.8 Status review of action for grouping of loads (IEGC clause 5.4.2 (e)
8.9 Status Review of Automatic Demand Side Management Scheme
In the earlier OCC Meetings the following were noted:
 AP & Telangana had informed that ADMS would be implemented after the
commissioning of new SCADA system only.

KSEB had informed that new ADMS works were under progress and would
be completed by 3 months.

KPTCL had informed that they were finalizing the scheme in discussions
with the DISCOMs.
 TANTRANSCO informed that the scheme had to be implemented by P&C
wing. TN was requested to furnish the status report within one week to
comply with the orders of Hon’ ble Commission.
 Puducherry vide letter dated 17.10.2014(Annexure-8A) had furnished the
current status of the Implementation of the ADMS scheme in Puducherry
network.
9.
9.
SCADA & Communication Issues
a) Pending SCADA field inputs under ULDC scheme.
b) Status review of standby data channel from 400 kV S/s (SR-I & SRII)
c) Reliable / Dedicated internet communication for system operation by
SR constituents. Constituents are requested to furnish the status.
d) Stand by data channel from NTECL Vallur to SRLDC & Voice
Communication going out of order. NTECL Vallur/PGCIL to give the
update.
e) Talcher-II data to be integrated in SRLDC SCADA system.
f)
Non availability of data in real time – NLC II Stage I & II
g) Frequent interruptions of communication link/ICCCP of constituents.
h) Ensure real time data of renewable generation by all constituents to
SRLDC.
(Item No. 8 of enclosed SRLDC letter dated 24.10.2014)
The validation of SCADA data between generating stations & SLDC and SRLDC &
ISGS as decided in the Special Meetings on RGMO & MVAR held on 29th January
2014 , 23rd June 2014: Compliance report of validation was to be furnished and to be
carried out regularly.
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 15
10.
Physical and
Procedure
Cyber
Security/Crisis
Management
Plan/Black
Start
10.1 Status update on Crisis Management Plan(C&DMP) of Power Sector is to be
furnished every quarter. The information regarding Cyber Security was to be
furnished to Chief Engineer, DPD, CEA, Sewa Bhavan, New Delhi-110066.
Report on Physical Security, other Mock Drills for CMP, Mock Drill for Black
Start Restoration was to be furnished Chief Engineer, DMLF, CEA, Sewa
Bhavan, New Delhi-110066. A copy of the reports was to be sent to SRPC
Secretariat ([email protected] and [email protected]). The practices
being followed in respect of Cyber Security/Physical Security/CMP/Mock Drills
w.r.t. Black Start was also required to be communicated.
CEA, vide letter dated 26.11.2013 had enclosed MoP letter dated 21.11.2013
regarding Security of power installations and status. The following information in
this regard may please be furnished to Member(GO & D),CEA , New Delhi with
a copy to SRPC for onward communication to MoP.

Standard Security guidelines for power installations and the status of
implementation including Cyber Security.

Systematic up gradation and modernization
procedures.

Coordination and liaison with local police and intelligence units.
10.2
of security systems and
Updated list of Nodal Officers for Disaster Management. Constituent to update
the list (if any change).
10.3 Schedule for Black Start Mock exercise of Bhadrawathi By pass & Work shop at
AP.
10.4 Development of Mock exercise procedure for individual Stations/Systems.
10.5
Status Review of BSRP for individual states including Railway Portion.
10.6
Status review of data submission by Railways and constituents.
10.7
Details regarding Black Starat Restoration(dead bus charging at Kayamkulam
and Sabarigiri).
10.8
Point to point mock exercise conduction for black start by all constituents.
(Item No.9 (a), (b), (c) (d) & (e) of enclosed SRLDC letter dated 24.10.2014)
11.
RGMO/FGMO
a) Analysis of RGMO / FGMO performance in SR in some specific
instances.
b) Status Review of RGMO / FGMO implementation in SR. Updated
information w.r.t. RGMO/FGMO in the specified format.
c) RGMO status of new units like North Chennai TPS Stage II and
MTPS Stage III and SDS TPS, Krishnapatanam
d) Status Review of effecting Changes in RGMO settings as per IEGC
amendment by the generating units in SR.
e) Action Plan of all generators to ensure actual performance of
RGMO as per declared performance.
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 16
g) Status review of action taken on the recommendation of Meeting
held to discuss on RGMO/FGMO related issues on 27.08.2014.
 Status Review of ICT/GT positions.
 Visibility of RGMO status to SRLDC/SLDC.
(Item No.5(a), (b), (c) & (d) of enclosed SRLDC letter dated
24.10.2014)
12.
LGBR & Outage Planning.
a) Status Review on development of load forecasting tools by SLDCs as per
IEGC Clause 5.4.2.
In this regard the following may be noted from the Order dated 19.12.2013 on
Petition No. 249/250/251/MP/2012
“We direct all STUs/SLDCs of the Northern Region, Southern Region and
Eastern Region to forecast their demand and make adequate arrangements to
avoid dependence on Unscheduled Interchange for meeting their demand or for
injecting short term surplus power, irrespective of the frequency”
(Item No. 12(d) of enclosed SRLDC letter dated 24.10.2014.
b) Outage deviation report for the period April –September 2014:
Constituents are requested to furnish the reasons for outage deviation w.r.t. the
planned outages which is to be communicated to CERC.
b) Outage Plan 2014-15/LGBR 2014-15: Data to be furnished.
13.
TRANSMISSION NETWORK ISSUES AND SYSTEM OPERATION ISSUES
a)
Status review of prolonged outage of grid elements in SR & Realistic
Action plan for revival of the prolonged outage is awaited from some
of the constituents. Monthly reports are required to be submitted to
Hon’ble CERC in this regard.(CERC Order on petition no
146/MP/2013).
b) Furnishing declaration by all Regional Entities on auto reclosure status of
400/220 kV ISTS and State owned lines.
Non operation of auto enclosure of 400 kV Ramagundam-Chandrapur line I
c) Non uploading of tripping details of Inter Regional Links like HVDC
Bhadravathi.
(Item No. 6(a), (b) &(c) of enclosed SRLDC letter dated 24.10.2014)
14 Reconciliation of schedules within the same shift by Regional Entities
(Item No. 13(a) of enclosed SRLDC letter dated 24.10.2014).
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 17
15
Strict Compliance of IEGC 6.5.33:
In case of any discrepancy detected in the final implemented schedule issued for
the previous day, it must be informed to SRLDC within 5 days by all the
Regional Entities/Traders for timely verification & re-conciliation.
(Item No. 13(e) of enclosed SRLDC letter dated 24.10.2014).
16. Auxiliary Power Supply failure in HVDC Bhadravathi.
(Item No. 13(c) of enclosed SRLDC letter dated 24.10.2014).
17
Constituents/Generators
Data/Information:
are
also
requested
to
furnish
the
a) Minimum/Maximum Demand Ratio of Constituent
Information and measures adopted may please be shared.
following
States.
b) Forced outages of thermal units.
c) Status of Srisailam/Kadamparai pump mode operation.
d) Installed Capacity in MW as on 31.10.2014.
e) Submission of details of new elements to be provided on monthly
basis in the agreed format.
(Item No. 10 of enclosed SRLDC letter dated 24.10.2014)
g)
Load Shedding in MW & MU carried out during September 2014 on
daily/hourly basis.
h) Capacity in MW of Wind Mills/Renewable (Category wise) added in
October 2014 by State Sector and Private Sector - to be furnished
separately.
I)
Generation in MU of Wind Mills/Renewable (Category wise) in
October 2014 by State Sector and Private Sector - to be furnished
separately.
J) PLF & PAF of Thermal & Nuclear Power Stations.
k) Details of Energy Exchanges by the states (including embedded
IPPs/CPPs) through Power Exchanges.
l)
Constituents may apprise the OCC of surplus power available, if
any.
m) Power Grid /States to furnish progress of the transmission schemes
and ATS for upcoming Generating Stations.
n) Progress of works of generating units to be commissioned in 201415 and also coming up in future.
o) Details of Power Cuts on Industries, Load Shedding and Power
supply to Agriculture Sector may please be furnished in the
Proforma prescribed by CEA vide their letter No. 1/AI/COR/GM2004/3405 dated 23.11.2004.
p) Variable cost of ISGS: Previous month data could be furnished by
Generators in the monthly OCC meetings. It is required to furnish
the entire digits of energy charges as billed by the Generating
Station.
q) Coal Stock Position to be submitted on monthly basis by Generators
(States/ISGS).
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 18
r) The coal shortage issue and sharing of coal availability as per the
CERC order dated 23.07.2013.
(Item No. 13(b) of enclosed SRLDC letter dated 24.10.2014)
s) Uploading of hourly Load Shedding details (both scheduled and
unscheduled) effected in previous day by all the constituents in SR.
(Item No. 13(d) of enclosed SRLDC letter dated 24.10.2014)
18.
Any other point with the permission of the Chair.
19.
Date and Venue of the Meeting.
***
Agenda Notes for the 101st OCC Meeting to be held on 11.11.2014
Page 19