-
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Government of India ~Ji'.ilIt;'14
Ministry of Power ~~~~
Northern Regional Power Committee
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-
i
INDEX A.1 Minutes of 37th meeting of TCC
..............................................................................................................
5
A.2 Minutes of 40th meeting of NRPC
..........................................................................................................
10
B. OPERATIONAL ISSUES
B.1 Revised System Protection Scheme (SPS) for 765 kV
Agra-Gwalior line. ...........................................
10
B.2 System Study for Capacitor Requirement in NR for the year
2019-20. ................................................. 11
B.3 Reactive compensation at 220 kV and 400kV level.
..............................................................................
12
B.4 Down Stream network by State utilities from ISTS Station
...................................................................
13
B.5 Database of protection settings
...............................................................................................................
20
B.6 Issue of ownership of 3x105 MVA ICT replaced by POWERGRID in
place of 250 MVA ICT at BBMB,
Dehar.........................................................................................................................................
20
B.7 LVRT issues of wind generation
............................................................................................................
22
B.8 Connectivity to Naitwar Mori HEP (NMHEP) (2X30MW) of SJVN
Ltd. in Uttarakhand .................... 23
B.9 Follow up of Major Decisions of NRPC.
...............................................................................................
26
B.10 Replacement of old S900 RTUs
.............................................................................................................
31
B.11 OPGW connectivity at NHPC Power Stations under Central
Sector scheme ........................................ 32
B.12 Non availability of data from major PSTCL
Sub-stations......................................................................
33
B.13 Shifting of Rihand-III to WR
.................................................................................................................
34
B.14 AGC Implementation
.............................................................................................................................
36
B.15 Summer Preparedness 2018
................................................................................................................
37
B.16 Winter grid operation 2017-18 (Agenda by NRLDC)
............................................................................
43
B.17 Important regulatory changes
.................................................................................................................
47
B.18 Commissioning of new elements in Uttar Pradesh state
control area without underlying network connectivity (Agenda by
NRLDC)
.........................................................................................................
49
B.19 Reliability Issue of Kashmir Valley
.......................................................................................................
50
B.20 Long outage of transmission elements and important upcoming
lines ................................................... 51
B.21 Overdrawal by state entities
...................................................................................................................
53
B.22 Non availability of data from major PSTCL
Sub-stations......................................................................
54
B.23 Communication Plan for Channel Redundancy and to Back-up
............................................................ 54
B.24 Reliable communication from state sector RTUs
...................................................................................
54
B.25 Telemetry of Interface points
.................................................................................................................
55
B.26 Phase nomenclature mismatch between BBMB and some
interconnected stations of other power utilities
....................................................................................................................................................
55
B.27 Converting Fixed Line Reactors to Switchable in
KankroliZerda line at Kankroli end ..................... 56
B.28 Shifting of 330 MVAR, 765kV Bus reactor-I at 765/400kV
Varanasi GIS ........................................... 57
B.29 Delay in constitution of a group to analyze reasons for
failures in Scada & EMS system and to suggest remedial measures
to avoid recurrence of such events
...........................................................................
57
B.30 Delay in implementation of various pending Scada & EMS
works by Siemens .................................... 58
-
ii
B.31 Delay in Fibre optic based communication system in NR and
additional OPGW connectivity in northern region under Fibre optic
Expansion Project
............................................................................
58
B.32 Delay in Training on EMS applications
.................................................................................................
59
B.33 Pending Networking issues
....................................................................................................................
59
B.34 Early Commissioning of 400/220 kV Tughalakabad Substation
and associated lines ........................... 59
C. COMMERCIAL ISSUES
C.1 Procurement of licenses of PoC software.
..............................................................................................
61
C.2 Deemed Availability Certification requiring outage for new
infrastructure development projects of Rail & Road networks
etc.
.............................................................................................................................
61
C.3 Signing of TPA by State Govt. with GoI & RBI
....................................................................................
64
C.4 Default in payment of outstanding dues and surcharge by
beneficiaries................................................
64
C.5 Opening of Letter of Credit (LC)
...........................................................................................................
66
C.6 Status of DSM Charges
..........................................................................................................................
67
C.7 Long pending outstanding of PDD, J&K and UPPCL
...........................................................................
68
C.8 Reactive Energy charges status as on 30.01.2018, till
week-41.
............................................................ 69
C.9 NRLDC Fee & Charges
.........................................................................................................................
69
C.10 Congestion Charges
...............................................................................................................................
70
C.11 Issue of NFL (National Fertilizer Ltd.)
..................................................................................................
70
C.12 Reconciliation of Pool Accounts (Oct-17 to Dec-17)
............................................................................
71
C.13 Status of Ancillary Services
...................................................................................................................
71
C.14 Reconciliation of STOA (Short Term Open Access) Charges
disbursement ......................................... 72
C.15 TDS Reconciliation of STOA
................................................................................................................
72
C.16 Status of Outstanding STOA Delay Payment Interest (Agenda
by NRLDC) ........................................ 73
C.17 STATUS of AMR as on 30.01.2018
......................................................................................................
73
C.18 Integration of AMR System with Elster Meters
.....................................................................................
74
C.19 AMR data through Fibre Optic Network
................................................................................................
74
D. ITEMS FOR NRPC
D.1 Reimbursement of Expenditure of NRPC Sectt. for the year
2017-18 by the members of NRPC ......... 75
D.2 Reimbursement of Expenditure of NRPC Sectt. by the members
of NRPC for the previous years ....... 75
D.3 Regular Membership in NRPC
..............................................................................................................
76
Annexure
I..............................................................................................................................................................78
Annexure
II.............................................................................................................................................................81
Annexure
III...........................................................................................................................................................84
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
3
NORTHERN REGIONAL POWER COMMITTEE
MINUTES
OF 38th MEETING OF TECHNICAL COORDINATION SUB-COMMITTEE
& 41stMEETING OF NORTHERN REGIONAL POWER COMMITTEE
The 38th meeting of Technical Coordination Sub-Committee (TCC)
and 41st meeting
of Northern Regional Power Committee (NRPC) were held on
27th
and28thFebruary,2018, respectively at Surajkund, Faridabad,
Haryana.The list of
participants ofthe TCC and NRPC meetings is enclosed at
Annexure- I & II,
respectively.
P R O C E E D I N G S O F 3 8t h M E E T I N G O F T C C
1. Sh. Dalip Singh, Director ( Proj.), HVPNLwelcomed the Members
of the TCC and
other delegates in the picturesque and historic place of
Surajkund. He briefly
mentioned the historic importance of the Surajkund which dates
back to 10th Century
AD. He expressed satisfaction that in the winter season the grid
was stable and there
was no major incident. He lauded the efforts of all the
concerned utilities of Northern
Region and NRPC in this regard. He also mentioned that the
trippings due to fog were
less as a result of insulator cleaning and replacement done by
utilities. While
mentioning the high voltage problem in Northern Region Grid, due
to which a large
number of lines were opened frequently during winter season, he
urged that serious
steps need to be taken in this regard. He emphasized that the
Coal shortage issue in
generating stations of Haryana as well as that of other
utilities in Northern Region is a
cause of concern and urged that this issue must be resolved
before peak summer
season. He stated that the previous decisions in TCC and NRPC
had been very useful
in resolving several issues and expressed hope that the
deliberations in this TCC
would also be helpful in resolving issues amicably.
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
4
2. Sh. Asgar Ali Majaz, Chairman, TCC and Development
Commissioner, Power, PDD,
J&K welcomed the members and other participants of the 38th
TCC meeting. He
thankedHaryana Power Utilities for hosting the meeting and
making a comfortable
stay arrangement for delegates.
3. He expressed satisfaction that winter load period in Northern
Region had passed
without any significant event affecting grid security. He
mentioned that in Northern
Region, during the current year, more than 58 GW demand was
successfully met and
load not served was 1.7% and 3.8%, in energy and peak
terms,respectively, which
was mainly due to system constraint and commercial reasons. He
added that the
availability of power is generally not an issue, as we are
meeting 58 GW demand
from 92 GW capacity in Northern Region. In Northern Region
except J&K other
States are generally comfortable in power supply. He informed
that the State of J&K
is not able to meet its demand mainly due to constraints in
distribution and
transmission system, especially in valley area. Commissioning of
220 kV network at
Wagoora and Kishanpur would help in meeting demand in Valley
area. At the
distribution level the network strengthening as well as focus on
complete metering of
load is required to correctly asses the demand and to bridge gap
between demand and
supply. He urged that not only J&K but all the States need
to reduce the Aggregate
Technical and Commercial ( AT&C) Losses, which is about 25%
at all India level. 4. Chairman, TCC mentioned that some utilities
had been overdrawing from grid during
last few months resulting in frequency reduction and endangering
the grid security.
During current financial year the frequency remained about 25 %
of the time beyond
the permissible limit. This was in spite of frequent ancillary
services support. We
should understand that non-scheduling of power from generating
stations and
allowing this power to be booked under ancillary services
results in extra burden on
Distribution Companies. He requested all the SLDCs and
Distribution Companies to
improve load & generation forecasting and schedule power
judiciously to optimize
overall costof power as well as to ensure safe & reliable
operation of power system. 5. Highlighting the issue of
non-reliable communication and telemetry system he
mentioned that efforts are being made, but, the intended results
are yet to be achieved,
as at present the data, in NRLDC, from about 30% of
Generating/Grid stations in
Northern Region is either not received or not reliable. He
stated that theSCADA&
telemetry is Eye & Ear of the power system. The crucial
decisions of real time Grid
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
5
operation are taken on the basis of information from this system
only. Non-
availability of complete and correct information may result in
wrong decision
resulting in compromise in grid safety as well as in financial
repercussions. He urged
all the utilities to make more concerted efforts to ensure the
reliable telemetry,
keeping in view its operational as well as commercial
importance.
6. While mentioning the project for creating a system for
protection data base and
analytical tools, which will help in maintaining a healthy
protection system, he
requested all entities to complete internal audit of protection
system before start of
peak summer season to ensure availability & healthiness of
required protection
system. He also requested the utilities to complete all the
activities for summer
preparedness.
7. Expressing his gratitude, Chairman, TCC once again thanked
all the participants for
sparing time to discuss the important issues. He expressed his
hope that the
discussions would be fruitful, which would go long way in
facilitating safe, reliable
and economic operation of NR power system.
8. Sh. M.A.K.P.Singh,Member Secretary, NRPC welcomed the Members
of Technical
Coordination Sub-Committee and other delegates ofthe 38th TCC
meeting and
expressed sincere thanks to Power Utilities of Haryana for
excellent arrangements
and hospitality. He briefly described important issues including
Capacitor study,
protection database, summer preparedness etc. to be discussed in
TCC meeting. He
also emphasised the importance of RGMO in facilitating reduction
of extra financial
burden on utilities in form of charges for ancillary and AGC.
Referring to presentation
by Gujarat SLDC, on best utility practices, in recent FOLD
meeting he urged all the
SLDCs to follow the best practices for safe , reliable and
economic operation of the
grid.
C O N F I R M A T I O N O F M I N U T E S ( T C C )
A.1 Minutes of 37th meeting of TCC
Minutes of 37thmeeting of TCC held on 27th October, 2017, were
circulated vide letter No.
NRPC/Comml/209/RPC(40th)/2018/455-543dated 11th January,
2018.Comments on the minutes have been received from NHPC,
POWERGRID and NTPC which were enclosed at Annexure-A1.1 and A1.2
and A1.3respectively in the agenda note.
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
6
NHPC:
NHPCvide their letter no. NH/O&M/GMC/17/222 dated 22/01/2018
hadrequested for deletion of the following from B21.3 in the
minutes:
and payment for the same shall be charged to NHPC and NHPC
confirmed that payment is not an issue.
TCC agreed to delete the above line.
POWERGRID:
POWERGRID vide their letter no. C/CTU/N/00 dated 23/01/2018 had
requested to issue corrigendum to the Minutes of 40thNRPCmeeting to
include the issues which were inadvertently missed out.
Accordingly,MS, NRPC informedthe committee that corrigendum to the
minutes has already been issued vide NRPCletter No.
NRPC/Comml/209/RPC (40th)/2018/2485-2531dated 19th January, 2018.
Committee noted and approved the corrigendum of minutes.
NTPC:
NTPCvide their letter no 01:CD:102dated 29.01.2018 had given
comments on the point no. B.23 ii (Coal Shortage during summer/
Monsoon: Agenda by NRLDC). B.23 ii states the following:
TCC concurred the decision of OCC that stations shall not reduce
their DC during the day due to coal shortage and shall keep at
least two days stock and declare DC accordingly.
NTPC had claimed that neither in 139th OCC meeting nor during
discussion of 37th TCC meeting such a decision was taken.
MS,NRPCinformed the committee that the said decision was taken
by OCC in its 140th OCC meeting and not in 139th OCC meeting.
Committee agreed that no amendment to the minutes were required for
the referred point.
TCC confirmed the minutes of 37thmeetingof TCC incorporating the
changes as stated above by NHPC. TCC also confirmed the corrigendum
to the minutes of 37th meeting of TCC issued based on the comments
of POWERGRID.
P R O C E E D I N G S O F 41st M E E T I N G O F NRPC
1. Sh. Dalip Singh, Director (Proj.), HVPNLwelcomedSh. P.K.Das,
Additional Chief
Secretary, Power, Haryana; Chairperson, NRPC and other Members
of the
NRPC.He mentioned that Sh. Das was the first Secretary of the
Haryana State
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
7
Electricity Regulatory Commission ( HERC), which was only second
SERC to be
established in the country after Odissa SERC.
2. Sh. P.K.Das, Additional Chief Secretary, Power, Haryana
welcomed all the
dignitaries and other participants of NRPC meeting in the State
of Haryana at the
picturesque location of Surajkund. While appreciating the
efforts of all the utilities in
making the power supply position in Northern Region relatively
better, he cautioned
the utilities not to be complacent. He opined that though the
power supply scenario
seems to be comfortable, there are still some areas in some
States which do not have
reliable and quality power availability. He suggested the
utilities to make effort to
supply power as per actual unrestricted demand as in present
condition utilities are
supplying power where they want to andnot exactly as per
demand.
3. Sh. Das had also expressed concern about the Coal shortage
issue becoming
perennial from seasonal. He suggested taking measures to ensure
adequate supply of
Coal by taking up the issue with Ministry of Power as well as
Ministry of Coal.
Citing example of huge financial losses incurred by State
utilities of Haryana in last
ten years, he called for action by utilities for reducing
Aggregate Transmission and
Commercial ( AT&C) losses by taking up the power supply
activities as business. He
mentioned that the inter-state infrastructure and regulatory
environment is well
developed for facilitating a vibrant power market in the
country. He advised all the
power utilities to be financially self reliant by adopting
business practices, which is
very essential for sustainable power sector in the country.
While mentioning the
UDAYA scheme he cautioned the power sector players that one time
bail out
scheme should not give a reason to be euphoric, instead, the
utilities should find out
ways and means to become financially self sustainable.
4. Sh. Das has also mentioned the challenge of integration of
large renewable power
especially Solar power. He stated that due to inherent
characteristic of generation
variability from these renewable resources, balancing of the
power availability with
conventional resources and modification of load pattern to
follow the generation is
need of hour.
5. He appreciated the role of deliberations and decisions in
NRPC in resolving the
issues and facilitating the safe, reliable and economic
operation of the Northern
Region Grid and expressed his belief that NRPC deliberations
would go a long way
in guiding the resolving all the issues.
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
8
6. Chairperson, NRPC, and Commissioner & Secretary, PDD,
Govt. of Jammu &
Kashmir, Shri Hirdesh Kumar, IAS, welcomed the members of the
Northern
Regional Power Committee and other delegates of the 41stmeeting
of NRPC. He
expressed his gratitude especially towards Sh. P.K.Das,
Additional Chief Secretary,
Power, Haryana for accepting his request and his enlightening
words.
7. While applauding TCC efforts in deliberating and resolving
several issues, he urged
all the members to implement the decisions in letter &
spirit, in a time bound
manner.
8. Chairperson, NRPC appreciated the contribution of all
stakeholders in facilitating the
Northern Power system in meeting the highest ever demand
successfully. He
mentioned that load not served in the region was significant
only in few States. It
was highest in J&K, which is mainly due to distribution
& transmission system
constraints. He apprised the house that huge funds had been made
available to J&K,
under Pradhanmantri special package, in last two years and most
of the works for
improving transmission & distribution system had already
been awarded. He added
that several schemes were under progress and with the help of
Central agencies like
POWERGRID, REC etc. the works would be completed
successfullyandtheT&Dconstraints would be mitigated very
soon.
9. Chairperson, NRPC advised all the concerned utilities to take
necessary action for
summer preparedness to ensure smooth functioning of the grid
with reliability
&optimum economy. He requested all the generating stations
to prepare themselves
for maximising generation during peak summer season by ensuring
Coal availability
in thermal generating stations and minimizing outages of Hydro
generators due to
silt.
10. He stated that Renewable Energy generation capacity of about
62 GW has surpassed
hydro generation capacity ofabout 45 GW in the country. He
cautioned about new
challenges in managing the grid, with more penetration of
renewable energy. He
added that all the power sector players should be prepared to
adopt new ways and
means like Automatic Generation Control ( AGC), flexing of Coal
based generation,
optimization of hydro and gas based generation for meeting peak
loads, demand
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
9
response, storage facilities, latest forecasting techniques etc.
to manage the
variability of renewable power. He suggested that the commercial
and technical
aspects should be seen in larger perspective for enabling
sustainable growth of power
sector. He added that the commercial interest of the individual
utility must be seen
but at the same time it should be kept in mind that the smooth
operation of the grid is
collective responsibility of all the utilities. He opined that
optimization of cost of
power along with ensuring 24X7 power supply to all category of
consumers is a
challenge for State utilities.
11. While appreciating the efforts of load dispatchers for
running a very large and
complex power system, he emphasized the need for availability of
proper,
communication and telemetry facilities in todays power system.
He expressed
concern about deficiency in these facilitiesandrequested all the
utilities to work on
this issue on war footing.
12. Chairperson, NRPC informed about the major changes in
scheduling, metering and
accounting, in form of 5 minute time block instead of present 15
minute time block.
He stated that this would be a new challenge for all the
utilities. He added that the
generating utilities must gear up for reliable generation
forecasting and the load
serving utilities must take step to improve the load forecasting
by using latest
technologies to enable fast decision making, by investing in
latest technology for
keeping pace with changing scenario.
13. The availability of adequate and trained man power in power
sector organisationswas
indicated as a major challenge by Chairperson, NRPC. He
mentioned that there had
been efforts for training and certification in specific areas of
power sector, but almost
all the utilities are facing manpower crunch. He advised all the
utilities to take
immediate steps to hire adequate manpower and train them to make
the manpower
able to deal with ever increasing technical as well as financial
and commercial
complexities in power sector. In this regard, while applauding
the efforts of
NRPCsectt. fortaking steps in skill development by organising
several training
courses, he advised toorganize more of such training courses in
future also, so that
power sector personnel remain updated with current technology
and best practices.
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
10
14. He stated that with increasing complexity the conflicts are
bound to happen. He
highlighted the vital role of NRPC, in providing a very good
platform for resolving
issues amicably and for reducing litigations. He urgedthe all
the members to utilize
this forum for benefit of all.
15. HethankedHaryana Power Utilities for the efforts put by them
in hosting this meeting
and for excellent arrangements for the comfortable stay of the
participants.
16. Member Secretary, NRPC welcomed Additional Chief Secretary,
Power, Haryana,
Chairperson, NRPC, other dignitaries and participants in the
41st NRPC meeting. He
thanked Haryana Power Utilities for making a good arrangement.
He apprised the
Committee about TCC meeting, held on previous day, that there
were thread bare
discussions on all the issues and consensus in most of the
issues was arrived.
C O N F I R M A T I O N O F M I N U T E S ( N R P C )
A.2 Minutes of 40th meeting of NRPC
Minutes of 40th meeting of NRPC held on 28th October, 2017, were
circulated vide letter No.
NRPC/Comml/209/RPC(40th)/2018/455-543dated 11th January, 2018.
Comments on the minutes have been received from NHPC, POWERGRID and
NTPC which were enclosed at Annexure-A1.1 and A1.2 and A1.3
respectively in the agenda note.
NRPC confirmed the minutes with the amendments as suggested by
TCC and also confirmed the corrigendum to the minutes of 40th NRPC
meeting issued vide letter No.
NRPC/Comml/209/RPC(40th)/2018/2485-2531dated 19th January,
2018.
B. OPERATIONAL ISSUES
B.1 Revised System Protection Scheme (SPS) for 765 kV
Agra-Gwalior line.
TCC Deliberation
B.1.1 Based on the recommendations of TCC a separate meeting was
convened on 07th November 2017 comprising members from NRLDC, NRPC
Sectt. and POWERGRID for reviewing the revised logic of the scheme
presented by POWERGRID in 140th OCC meeting. The minutes of the
meeting was attached to the agenda note as Annexure-B1.1.In the
said meeting POWERGRID was advised to explore for
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
11
utilising the signals from circuit breaker (CB Open/ CB close)
of both the ends of 765 kV Agra- Gwailor line for SPS.
B.1.2 POWERGRID informed that the circuit breaker (ON/ OFF)
signal was being utilized from Agra end in the logic. However, that
from Gwalior end was not being utilized as the purpose of the
scheme was being served by utilizing the CB signal from one
end.
B.1.3 Representative of NRLDC stated that even if the scheme was
functioning properly in normal circumstances there are chances that
the scheme may not operate in case of breaker lockout from Agra end
and the line getting tripped from Gwalior end.
B.1.4 NLDC also stressed on utilizing CB signals from both the
ends as Agra-Gwalior is an important inter-regional transmission
line and its implementation will make the scheme even more
reliable.
B.1.5 POWERGRID representative stated that though the purpose
was being served with the already implemented logic, POWERGRID will
implement the logic utilizing the CB signal from both the ends.
B.1.6 TCC recommend that POWERGRID will inform the
logicwithinthe CB signal for both the ends.
NRPC Deliberation
B.1.7 NRPC approved the recommendation of TCC.
B.2 System Study for Capacitor Requirement in NR for the year
2019-20.
TCC Deliberation
B.2.1 Member Secretary, NRPC informed the committee that issue
of conducting the capacitor requirement study at 11/33 kV level
through CPRIfor 2018-19 was discussed and approved in the 37th TCC
and 40th NRPC meeting. He further informed that CPRI has submitted
their revised offer for the above said study and has quoted
consultancy charges of Rs. 55,00,000/- for the study for 2019-20 in
addition to Rs. 10,00,000/- bill raised by themfor the study
conducted for the period 2017-18.
B.2.2 MS, NRPC informed the Committee that NRPC Sectt. was
negotiating with CPRI so as to get the cost of the study as
proposed by CPRI to be reduced.
B.2.3 He further informed the Committee that the Techno Economic
Sub Group (TESG) of PSDF hasraised certain queries on the proposal
submitted for PSDF funding by Haryana, UP, Punjab and J&K
regarding capacitor installation by them. TESG has asked the
location wise details of the capacitor to be installed, study
report of DISCOMs based on which they have proposed the
installation of capacitor, present voltage profile, basis of cost
estimate among other details. Concerned utilities were requested to
submit the details as desired by the TESG of PSDF (Minutes of the
meeting is attached as Annexure-III).
B.2.4 Representative of UP stated that DISCOMshavesubmitted the
above stated capacitor installation proposal directly to PSDF for
funding without informing SLDC and STU
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38th TCC & 41stNRPC Meetings (27thand 28thFebruary,2018)
Minutes
12
about the same and because of which follow-up for the same could
not be done by them.
B.2.5 Representative of NRLDC also flagged the issue of
bypassing of STU and SLDC by other DISCOM which was not a good
practice. MS, NRPC advised for following the established hierarchy
so as to avoid any such situation in future of non-informed STU and
SLDC regarding any work being proposed by their DISCOMs/ other
utility.
NRPC Deliberation
B.2.6 NRPC agreed that the study shall be conducted at 11/33 kV
level so as to obtain the true requirement of capacitor and advised
NRPC Sectt. to negotiate the cost of study for 2018-19 with
CPRI.
B.2.7 NRPC concurred with the deliberations of TCC and advised
utilities to adhere to the established hierarchy so that the
operators of the grid are in knowledge of what was happening in
their system.
B.3 Reactive compensation at 220 kV and 400 kV level.
TCC Deliberation
B.3.1 MS, NRPC informed the Committeethat the following reactors
were agreed in 39th
Meeting of SCPSPNR and thereafter were approved in 37th TCC and
40th NRPC meeting:
a) TCR of capacity 500 MVAr at Kurukshetra 400 kV bus.
b) Bus Reactors at 30 no.of 220 kV sub-stations and 18 no of 400
kV level sub-stations subject to the availability of space
(Annexure-B3.1 to the Agenda note). It was also agreed that these
reactors shall be provided by the owner of the substations.
B.3.2 He informed that the TCR of 500 MVAr at 400 kV Kurukshetra
bus was approved by the standing Committee in view of the
prevailing high voltage conditions at Kurukshetra which leads to
curtailing power transfer capability through Champa- Kurukshetra
HVDC.
B.3.3 Representative of POWERGRID informed that the TCR at
Kurukshetra was under tendering stage and LoA for the same shall be
placed by June 2018 with a commissioning schedule of 24 months. He
further informed that in view of the prevailing high voltage
condition at Kurukshetra, for the time being a reactor of 125 MVAr
is being installed at Kurukshetrawhich will be commissioned by June
2018 and another reactor of 80 MVAr shall also be installed by
March 2018. It was informed to the Committee that these reactors
will provide a relief of about 10 kV at Kurukshetra.
B.3.4 CTU informed that in the Empowered Committee meetingit was
suggestedto get the reactors at 400 kV ISTS
substationscommissionedthrough TBCB. However, these reactors being
important for maintaining the voltage level of NR grid at the
earliest, Ministry has been approached so as to allow POWERGRID to
take the project rather than going through TBCB.
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B.3.5 DTL informed that they have identified 6 substation of 220
kV and 1 substation of 400 kV (Mundka) voltage level for
installation of reactors which shall be commissioned by December
2019. He further stated that in the identified substations for
installation of reactor space constraint is therein most of the
substations (GIS). On conversion of other substations from AIS to
GIS, 02 more substations could be identified for installation of
reactors.
B.3.6 PSTCL informed that they have submitted their proposal for
installation of reactors through PSDF funding.
All other utilities wererequestedto submit detailed action plan
for the installation of reactors.
NRPC Deliberation
B.3.7 NRPC concurred withthe deliberations of TCC and also
requested NRPC Secretariat to write to Ministry for expediting
their decision regarding the commissioning of reactors at 400 kV
ISTS substations either through TBCB or through POWERGRID.
B.4 Down Stream network by State utilities from ISTS Station
S. No
Substation Downstream network
requirement
Schedule Planned system and Implementation Status
1 400/220kV , 3x315 MVA Samba
2 nos. bays utilized under ISTS. Balance 4 Nos to be
utilized
Commissioned LILO of 220kV Hiranagar-Jatwal line LILO 220kV
Jatwal Gladni line LILO of 220kV Bishnha Hiranagar D/c line LoA has
been issued and Material has reached the site. Targeted Completion
Nov 2018
2 400/220kV, 2x315 MVA New Wanpoh
6 Nos. of 220 kV bays to be utilized
Commissioned 220kV New Wanpoh Mirbazar D/c line Targeted
Completion Nov 2018
3 400/220kV, 2x315 MVA Parbati Pooling Station
2 Nos. of 220 kV bays to be utilized.
Commissioned 220 kV Charor- Banala D/c line (18km) Targeted
Completion- Oct17 Anticipated Mar18 Representative of HPSEB
informed that information would be updated by HPPTCL whose
representative was not present.
4 400/220kV, 2x500 MVA Kurukshetra (GIS)
8 nos. of 220 kV bays to be utilized
Commissioned LILO of one circuit of Kaul-Pehowa 220kV D/c line
LILO of one circuit of Kaul-Bastara 220kV D/c line Work awarded
with contractual
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S. No
Substation Downstream network
requirement
Schedule Planned system and Implementation Status
completion date 02/01/2018.
Representative of HVPNL stated that work was awarded but the
firm got bankrupt. The tendering was in process and it was expected
to be awarded by March -2018.
Targeted Completion March 2019.
He further stated that work for LILO circuits shall be completed
by December-2018.
5 400/220kV, 2x500 MVA Bagpat GIS
3 nos. of 220 kV downstream lines to Shamli, Muradnagar and
Bagpat commissioned. Balance 5 Nos. of 220 kV bays to be
utilized
Commissioned
Bagpat- Baraut 220kV S/c Line LILO of 220kV Muradnagar II
-Baghpat (PG) at Baghpat UP Representative of UPPTCL stated that it
has severe RoW issue. Bagpat(PG)-Modipuram New 220kV D/c-exp. by
Oct.18
6 400/220 kV, 2x315 MVA Saharanpur
2 nos. 220 kV downstream lines commissioned. (Saharanpur (UP)
and Nanauta) Balance 4 Nos. of 220 kV bays to be utilized
Commissioned
LILO of 220 kV Khara- Shamli at Saharanpur PG
Saharanpur(PG)-Sarsawa (new) 220kV D/c Targeted Completion April
2018
7 400/220kV, 2x315 MVA Dehradun
Out of 6 bays, only two bays used. Balance 4 bays to be
utilised. Commissioned
2 bays for 220 kV Dehradun Jhajra line
one bay for proposed Naugaon S/s
2 bays for proposed S/s at Selakui
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S. No
Substation Downstream network
requirement
Schedule Planned system and Implementation Status
8 400/220kV, 2x315 MVA Kotputli
02 nos. 220kV downstream lines commissioned on 27.05.2015.
Balance 2 Nos 220 kV bays to be utilized. Commissioned
Kotputli(PG) Kotputli (RVPN) 220kV S/c line (existing)
Kotputli(PG) Manoharpur (RVPN) 220kV S/c line (existing)
Kotputli(PG) Bansur (RVPN) 220kV D/c line (completed telemetry
issue has been resolved and load taken on 11.01.2018)
RVPN representative confirmed and stated that lines have been
commissioned.
9 400/220kV, 2x500 MVA Jaipur South
Partially utilized. Balance 4 Nos 220 kV bays to be
utilized.
Commissioned
220kV S/c to Chaksu (existing) 220kV S/c to Duni (existing)
220kV S/c to Sez (existing) 220kV S/c to Goner (existing) 220kV D/c
to Vatika (completed and line charged on 11.05.17 and 12.05.17 and
Telemetry issues has been resolved.) RVPN representative confirmed
and stated that lines have been commissioned.
10 400/220 kV, 2x315 MVA Sohawal
6 Nos 220 kV bays to be utilized.
Commissioned 2 nos of bays utilized for Sohawal 220kV UP.
2 nos for Barabanki 220 kV s/s under construction which is
expected to be completed by March-2018.
2 nos of bay of utilized for 220kV New Tanda-Sohawal line and
expected to be completed by April -2018.
11 Shahjahanpur, 2x315 MVA 400/220 kV
Partially utilized. Balance 5 Nos. of 220 kV bays to be
utilized.
Commissioned One bay used for 220 kV Shahjahnpur-Hardoi line
commissioned. 2 no of bays for 220kV Shahjahnpur - Azimpur D/c
line
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S. No
Substation Downstream network
requirement
Schedule Planned system and Implementation Status
12 Jalandhar, 1x 500 MVA 400/220 kV
Partially utilized. Balance 2 Nos. of 220 kV bays to be
utilized.
Commissioned O/o C.E./TS/PSTCL/Patiala has already conveyed to
PGCIL/Jalandhar that there is no requirement of additional 220kV
Lines for the time being. However, it shall be kept in view for
future planning.
13 02 nos. bays at Moga
Partially utilized. Balance 2 nos. of 220kV bays to be
utilized.
Commissioned PSTCL informed that the 220 KV DC line from 400 KV
PGCIL Moga to 220 KV Mehal Kalan is expected to be completed by
28.02.2018
14
Hamirpur 400/220 kV 2x 315 MVA Sub-station
(Augmentation by 3x105 MVA ICT)
04 nos. 220 kV downstream lines commissioned under ISTS. Balance
two bays to be utilised by HPSEBL
Mar18
2x220 kV bays to be utilized for connecting 220/132kV Kangoo
substation of HPSEBL by 220 kV Kangoo-Hamirpur D/c line.
15
Kaithal 400/220 kV 1x 315 MVA Sub-station
July 2017 (Shifting of Transformer from Ballabhgarh).
Commissioned
220kV Kaithal(PG)- Neemwala D/c line - Work awarded on
25.10.2016. Tentative completion date is 23.05.2018. 220kV S/s
Neemwala-Tenders opened for NIT dated 23.05.2016.
16
Sikar 400/220kV, 1x 315 MVA S/s
2 Nos. of 220 kV bays Commissioned
RRVPNL representative stated that studies would be conducted to
formulate how bays could be utilized.
17
400/220kV Kota Sub-station (1 No. of 400 kV Bay)
Commissioned for Anta-Kota 400 kV S/c line of RRVPNL. Bay at
765kV Anta is not
Work order has been awarded to M/s GE and expected to be
completed by March-18
RRVPNL representative stated that there was issue of forest
clearance which has been
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S. No
Substation Downstream network
requirement
Schedule Planned system and Implementation Status
ready, however the work of 400kV S/C Kota (PG)-Anta line is
under progress.
resolved. It has been expected to be completed by March-18.
18 Bhiwani 400/220kV S/s
6 nos. of 220kV bays Commissioned
HVPNL to update.
19 Jind 400/220kV S/s
6 nos. of 220kV bays Commissioned
HVPNL to update
Establishment of new 400/220kV substations in Northern
Region:
Sl. No.
Name of Substation MVA Capacity
Expected Schedule
Downstream connectivity furnished by States
1 400/220kV Dwarka-I GIS 4x 500 Sep18 DTL may update.
2 400/220kV Tughlakabad GIS
4x 500 Oct18
3 220/66kV Chandigarh GIS 2x 160 Feb19 8 nos. of 66kV bays. UT
Chandigarh to update.
4 400/220kV Jauljivi GIS 2x315 December 2019
2 bays for 220kV Almora- Jauljibi line
2 bays for 220kV Brammah-Jauljibi line
5 400/220kV Sohna Road GIS
2x500 May19 (Under TBCB)
(8 bays)
6 400/220kV Prithla GIS 2x500 May19 (Under TBCB)
Two nos. of 220kV bays for Prithla(400)-Prithla (HVPNL) 220kV
D/c line
Four nos. of 220kV bays
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Sl. No.
Name of Substation MVA Capacity
Expected Schedule
Downstream connectivity furnished by States
(8 bays) for LILO of existing 220kV PalwalRangalaRajpur D/c line
at Prithla (400) (FY 2019-20)
Two nos. of 220kV bays for 220kV Prithla (400)Sector-78,
Faridabad S/s D/c (FY-2020-21)
7 400/220kV Kadarpur GIS 2x500 May19 (Under TBCB)
(8 bays)
8 400/220kV Kala Amb GIS 7*105 TBCB
Commissioned (Jul17)
HPSEBL has planned one no. of 220kV D/c line from Kala Amb
400/220kV S/s to 220/132kV Kala Amb
S/s. Details for remaining 4 nos. of line bays may be
provided.
9 400/220kV Amargarh GIS 7X105 Oct18 (Under TBCB)
(Sterlite Grid planning to prepone)
JKPDD to confirm for LILO of 220kV D/c Zainkote - Delina line at
Amargarh included.
TCC Deliberations:
B.4.1 Representative from UPPTCL enquired whether the consent of
States are being taken in Standing Committee for complete
utilization of all bays.
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B.4.2 MS, NRPC stated that this was the concern of all the
States that the system is approved in standing committee with the
approval of respective states, but states find difficult to match
with the timeline set up for the upstreamsystemby POWERGRID and
clarified that this issue has been deliberated at length in
previous meeting.
B.4.3 He further informed the committee that as per the
decisions in previous TCC/NRPC meeting, NRPC Secretariat has
already written a letter to CERC. He further stated that in
pursuance of the issue, NRPC Secretariat would submit a reminder to
CERC.
NRPC Deliberations:
B.4.4 MS, NRPC briefed the Committee about the concern raised by
the utilities. He stated that due to delay in the commissioning of
downstream network, utilities have been charged heavily. He further
told that it was the concern of all utilities as upstream assets
were utilized for strengthening of the Grid, it should be charged
through PoC mechanism.
B.4.5 Additional Chief Secretary (Power), Govt. of Haryana
considered the concern raised by utilities and emphasized that
Project and Contract management is a critical area. He further
mentioned that there should be synchronism between States planning
their downstream network and POWERGRID planning its 400 kV network.
He told if states do not match the committed schedule with that of
POWERGRID then they would be always be behind, which should be
avoided.
B.4.6 Representative of HPSEB reiterated their demand,that
charges should be recovered through the PoC mechanism instead of
passing to utilities. He further informed the committee that the
matter was discussed in the validation committee meeting where CERC
representative had asked HPSEB to file the petition in CERC.
Accordingly, HPSEB is going to file a petition in CERC. He
requested other utilities to join them for the same
B.4.7 PCE-II, CEA stated that PoC mechanism is for all the
regions hence NR constituents should not take decision whether to
include charges in PoC or not. He further mentioned that this forum
was not empowered to take a decision and it should be brought up to
CERC.
B.4.8 CE (GM), CEA informed the committee as per the CERC order
till the commissioning of the downstream elements, the utility
responsible for delay shall bear the charges.
B.4.9 MS, NRPC clarified to Committee that issue was already
discussed in previous TCC/NRPC meeting and it was decided that NRPC
Secretariat would write a letter to CERC regarding the issue.
B.4.10 He further told that a letter was written to CERC
according to a decision taken in previous TCC/NRPC meeting and
citing the seriousness of issue NRPC Secretariat should write a
reminder letter to CERC.
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B.4.11 Committee agreed and approved the NRPC Secttto write a
reminder letter to CERC on the subject matter.
B.5 Database of protection settings
TCC Deliberation B.5.1 MS, NRPC informed that 35th TCC/39th NRPC
approved for engaging a third party
for development of Protection database with funding through PSDF
in line with that of ERPC and SRPC Protection database.
B.5.2 He further informed that based on the discussions held in
34th PSC meeting, a core committee was formed to define the
comprehensive Scope of the project comprising members from the
utilities of NR. First meeting of the group for defining the scope
of the project was held on 01.02.2018 and based on the inputs
received from the members, Draft Bidding Document has been prepared
by the NRPC Secretariat and will be circulated for the approval of
the committee in its next meeting.
B.5.3 NRPC Secretariat has submitted the DPR of the project for
PSDF funding based on the draft bidding document and the proposal
of NRPC has been recommended by the techno Economic Sub Group of
PSDF to the appraisal committee for its approval.
B.5.4 MS, NRPC informed that tender would be floated after
finalization of the Bidding Document by the committee with the
execution period of the project being 18 months.
NRPC Deliberation B.5.5 Additional Chief Secretary (Power),
Govt. of Haryana, Sh. P K Das, queried about the
mode of data collection. It was informed that the relay settings
data would be collected physically by visiting the substations and
not automatically.
B.5.6 He further queried if the format for collection was
decided to which it was informed that ERPC has already implemented
the project and SRPC was implementing the same and the format was
available with them.
B.5.7 Sh. P. K. Das stated that if the data was to be collected
physically in a format which was already available with ERPC and
SRPC, the execution period of the project which was 18 months was
not justified and the same process of data collection could be done
within 3-4 months.
B.5.8 PCE-II, CEA stated that relay setting data collection was
not the only work involved in the project. It also consists of the
process of validation of the relay settings after modeling the
network and simulating the same. He stated that this process of
modeling the network and validation of the relay settings would
take most of the time and 18 months execution period was
justified.
B.5.9 NRPC agreed to the above justification of PCE-II, CEA and
advised NRPC secretariat to proceed further with the proposal.
B.6 Issue of ownership of 3x105 MVA ICT replaced by POWERGRID in
place of 250 MVA ICT at BBMB, Dehar
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TCC Deliberation B.6.1 Member Secretary, NRPC informed that in
the 37th TCC and 40th NRPC meeting,
representative of POWERGRID had informed that as per the
approval of 30th Standing Committee of Power System Planning of NR
held on 19.11.2011, POWERGRID had to install 2 x 63 MVAr Bus
reactors and replace 250 MVA ICT with 3 x 105 MVA ICT at BBMB,
Dehar.
B.6.2 The commissioning detail of the said elements as under:
Sl. No.
Description of Element Date of first time charging
DOCO date Remarks
1 3 x 105 MVA ICT 31.01.2017 at 20:05 hrs
02.02.2017 Successful Trial Run Certificate on hold by
NRLDC.
2 63 MVAr Bus Reactor - I 12.12.2016 at 22:34 hrs
14.12.2016 Certificate issued by NRLDC.
3 63 MVAr Bus Reactor - II 28.09.2017 Yet to be declared.
Test Charged only.
B.6.3 He informed that the successful trial run certificate of
the 3 x 105 MVA ICT was put on hold by NRLDC as BBMB has claimed
the ownership of the ICT.
B.6.4 As advised by Chairperson, CEA in 40th NRPC meeting a
separate meeting with the affected party to resolve the issue of
ownership of ICT at Deharwas held on 09.02.2018 at NRPC Secretariat
wherein BBMB stated that the decision of their management shall be
intimated in the 38th TCC and 40th NRPC meeting.
B.6.5 Member (Power), BBMB stated that there were two issues
related to the ICT installed at BBMB Dehar by POWERGRID. One was
the operational issue which has been resolved as the O&M was to
remain with BBMB whether or not the ownership is with them or with
POWERGRID. Second issue, he pointed out was that of the ownership.
He stated that the decision taken in the separate meeting held on
09.02.2018 at NRPC Secretariat needs to be shared with the BBMB
partner states so that they may decide whether to obtain the
ownership of the ICT by making upfront payment of the ICT along
with the 15% consultancy charges to POWERGRID or to allow POWERGRID
to own the ICT and let them recover their investment through PoC
tariff. He requested POWERGRID to share the details of the cost
which needs to be paid by BBMB for obtaining the ownership of the
ICT
B.6.6 He further stated that the partner states of BBMB were
raising concerns on the increased PoC charges and they shall be
given some time so as to decide on the issue of owning the ICT.
B.6.7 MS, NRPC stated that PoC charges has increased for all the
States as new elements are getting added in to the grid. He stated
that even if the element does not get
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installed in NR even then the charges of elements commissioned
in other region are also shared by all the utilities. He further
informed that POWERGRID being a revenue neutral body, only collects
the charges for elements installed by them and in this situation
holding back the recovery of its investment through PoC tariff by
BBMB was not justified.
B.6.8 POWERGRID representative informed that all the details
regarding the ICT cost has already been submitted to BBMB and shall
also be forwarded again. However, he stated that till the time it
was not being decided by BBMB and their partner states whether to
own the ICT, POWERGRID shall be allowed provisionally to charge the
tariff of the ICT through PoC mechanism. He stated that for past 8
months the tariff was on hold and POWERGRDI was bearing losses for
the same.
B.6.9 Member (Power), BBMB stated that if the issue was pending
since last 8 months one more month may be given to BBMB partner
states and he assured that within this period the issue would be
decided by BBMB and their partner states and the issue shall be
resolved.
B.6.10 MS, NRPC requested BBMB to ensure that the issue gets
resolved within 1 month. He further stated that whenever in a forum
BBMB agrees to any issue it should consult its partner states
beforehand so as to avoid any such situation in future.
NRPC Deliberation B.6.11 NRPC concurred with the deliberations
of TCC and advised BBMB and its partner
States to take their decision within 1 month and resolve the
issue. BBMBand other utilities were further advised that whenever
any such proposal is brought by any of the agency/such type of
issues/ regarding source of funding/ ownership etc. shall be
discussed beforehand with their partner states.
B.7 LVRT issues of wind generation
TCC Deliberation B.7.1 MS, NRPC informed that Technical
Standards for Connectivity to the Grid,
(Amendment), regulations, 2012, provided for LVRT capability for
Wind generating units. However many of the generators commissioned
after 15.04.2014 in Rajasthan, are not LVRT compliant. Similarly,
many generators with installed capacity 500 kW or more and
commissioned before 15.04.2014, also do not have LVRT facility.
B.7.2 He further informed the Committee that this agenda item
was being considered in various fora of NRPC for compliance of
Regulations / orders by CEA/CERC but no progress has been observed
on compliance.
B.7.3 RVPNL representative again informed that the case for
filing petition to RERC was forwarded to REMC wing and will be
filed at the earliest.
B.7.4 MS, NRPC stated that it was the responsibility of
Rajasthan SLDC to ensure compliance to various regulations and they
need to impress upon the wind generators
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so as to install LVRT at the earliest. He requested Rajasthan to
call all the Wind turbine generators and sensitize them about the
repercussions of non-availability of LVRT for the grid security. It
was also advised to call any agency which was in the field of LVRT
installation to sensitize the gathering of Wind generators.
B.7.5 Representative of NLDC stated that recently 2 incidents
occurred wherein severe disturbances were observed in the grid due
to non-availability of LVRT in the Wind generators. He requested
Rajasthan SLDC to ensure earliest compliance to these
regulations.
B.7.6 MS, NRPC proposed that the must run status to the wind
generators should only be granted to LVRT compliant wind generators
and non compliantwind generators shall not be scheduled and it
should be the responsibility of Rajasthan SLDC for the
implementation of the same. TCC agreed to the proposal and advised
Rajasthan SLDC to ensure compliance to the decision.
NRPC Deliberation B.7.7 PCE-II, CEA queried Rajasthan about how
in the first place the connectivity was
granted to these LVRT non-compliant wind generators. CE (GM),
CEA also stated that LVRT for wind generators getting commissioned
after April 2014 and connected at 66 kV and above voltage level is
mandated in CEA connectivity standards.
B.7.8 Representative of NRLDC also stated that LVRT non
compliance was a very serious issue and shall be resolved at the
earliest for ensuring security of the grid.
B.7.9 Sh. P. K. Dasstatedthat in future all the constituent
States shall not give connectivity to wind generators unless this
compliance was fully met. He advised Rajasthan SLDC to give a
notice to all the LVRT non compliant wind generator stating the
following :
Wind generators providing them with 1 month time for compliance
to LVRT, failing to which Rajasthan SLDC would be constrained to
deny scheduling to these generators.
B.7.10 NRPC concurred with and agreed to the TCC
deliberations.
B.8 Connectivity to Naitwar Mori HEP (NMHEP) (2X30MW) of SJVN
Ltd. in Uttarakhand
TCC Deliberation B.8.1 Representative of SJVN informed that CTU
vide letter no. C/CTU/N/CON/338, dated
16.10.2017 had intimated the grant of connectivity as per FORMAT
CON-3 for NMHEP, wherein the transmission system required for
connectivity for NMHEP is as under:
a) Naitwar Mori HEP - #Location of Mori 220/132 kV (PTCUL)
substation 220 kV D/c (to be implemented by applicant along 220 kV
bays at generating end).
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b) #Location of Mori 220/132 kV(PTCUL) Dehradun 220 kV D/c (to
be implemented by PTCUL)
#Mori 220/132 kV substation is not required in the time frame of
connectivity of Naitwar Mori HEP.
B.8.2 He further informed that in one of the meeting held with
Director (Projects), PTCUL on 06.01.2018 (to expedite the
construction of transmission line) it was informed that PTCUL
intends to change the location of 220/132 KV sub-station at Mori
and exploring the possibility to locate the sub-station to a new
location somewhere near the village Naugaon. The location of
sub-station at Naugaon is also yet to be finalized by them.
B.8.3 He stated that main civil package of NMHEP has already
been awarded and the Public Investment Board (PIB) while
recommending the investment decision for NMHEP has expressed their
concern regarding transmission infrastructure beyond Mori
substation to be made available before CoD of the project.
B.8.4 He further informed that PTCUL has not made any official
intimation either to SJVN or to CTU regarding their decision to
change the location of substation from Mori to Naugaon and now with
the location being changed primarily it would lead to delay in the
execution of the project and would also increase the cost of the
project as the location of new substation will require around extra
20 Km transmission line to be laid.
B.8.5 Representative of PTCUL informed that they had tried to
search land in Mori but were not able to find any suitable site for
the substation. Now, the land has been identified in Naugaon area
and the line from Naitwar Mori HEP switchyard to Naugaon being a
dedicated line to be used by SJVN, PTCUL was awaiting consent from
SJVN before taking the revised proposal to CTU and Standing
Committee.
B.8.6 CTU informed that they have received comment from SJVN but
not from PTCUL regarding the decision to change the location of
substation. He stated that with the change in location the length
of the transmission line from switchyard to Naugaon substation will
increase by approximately 20 Km not only for Naitwar Mori HEP but
also for other projects to be constructed. Mori substation has been
indicated in the plan as a pooling station and this change in
location will increase the cost of all the future projects.
B.8.7 MS, NRPC stated that because of the change in location of
the substation, the project was getting delayed which would also
require all the approvals to be obtained afresh for the changed
location. In view of the above it was suggested that a Joint
inspection may be carried by PTCUL and SJVN so as to identify land
in Mori to avoid the delay in the implementation of the
project.
NRPC Deliberation
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B.8.8 PTCUL representative informed that they had already
surveyed Mori but were unable to find the location suitable for the
substation. However, it was informed that they have identified 3
tentative locations suitable for the substation at Naugaon.
B.8.9 Additional Chief Secretary (Power), Govt. of Haryana, Sh.
P K Das stated that ideally Mori may be the best location for
having the substation but practically if the land was not available
there was no benefit in delaying the project further and PTCUL
should be allowed to go forward with the location identified by
them in Naugaon.
B.8.10 To this proposal of Sh. P. K. Das representative of SJVN
stated that there main concern was to avoid the delay in the
project and they were not averse to the substation to be built in
Naugaon if the location was not available in Mori.
B.8.11 Representative of CTU stated that Mori being a pooling
station, shifting the location to Naugaon would increase the length
of Transmission line from all the upcoming projects by 20 Km. He
further stated that SJVN and PTCUL shall be asked to carry out
joint inspection within 15 days and intimate their decision to CTU
and accordingly the same shall be taken at the Standing Committee
meeting.
B.8.12 NRPC advised SJVN and PTCUL to carry out joint inspection
within 15 days to identify appropriate land at Mori and if no land
could be identified at Mori the proposal shall be moved forward
with location as identified by PTCUL so as to avoid any further
delay in the project.
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B.9 Follow up of Major Decisions of NRPC.
1. Automatic Meter Reading (AMR) for SEMs
13th NRPC meeting held on 24th June 2009.
Total SEM/locations as per LOA, phase-I:1250SEM/220 Locations
phase-II:575SEM/150 DCU
No. of Energy meters for which AMR commissioned : 1320 SEM/266
DCU Total locations for which data is received: 150 Locations No.
of Energy meters for which data is being received at NRLDC: 1065
SEM
Percentage availability of data: 82% on SEM basis and 73% on
location basis
In the 139th OCC meeting on the issue of provision of the
prospective plan of 5 minute scheduling in the AMR, POWERGRID
representative expressed their inability to get modifications done
for 5 minute scheduling They further stated that once the
regulation is notified they will take the further necessary
action.
2. Provision of Bus Reactors in Northern Region to Control Over
Voltages
Provision of Bus Reactors in Northern Region to Control Over
Voltages
Out of 17 no. reactors at 15 locations, 12 no. reactors at 10
locations have been Commissioned. The status of remaining 05
reactors was as under; Nathpa-Jhakri (1x80 MVAr): SJVN had informed
that bays would be ready by June,17. However, due to peak
generation in that period, shut-down may not be available.
Therefore, the reactor would be commissioned by June 2018.
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Chamera-I (1x125 MVAr): NHPC had informed that Commissioning was
expected by March,2018. Parbati-II (1x125 MVAr) and Parbati-III
(1x80 MVAr): NHPC informed that there is no space at Parbati-III
and as such reactors will be installed at Parbati- II. Reactors at
Parbati-II will be commissioned along with the commissioning of the
project in 2018-19. The case for purchase of reactor is under
tendering process.
3. 400 kV Reactors 29th NRPC meeting held in September 2013
RVPNL: Commissioning of Reactors at Hindaun by 1st week of March
2018 and Merta has been commissioned.
4. 2X63 MVAR Bus reactor and replacement of 250 MVA Trf. with
315 MVA Trf. at Dehar Power House by POWERGRID.
Approved in 30th Standing Committee of Power System Planning of
NR held on 19.11.2011
POWERGRID informed that one reactor has been commissioned in
December 2016. Other reactor was damaged during transportation and
would be commissioned by June 2017.
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5. Unified Real Time Dynamic State Measurement (URTDSM)
Scheme.
Approved in 27th NRPC meeting held on 13th July, 2012 & 30th
November, 2012
Total scope is PMUs for 115 S/S. Out of which, for 113S/S PMUs
has been dispatched.
PMUs for 108 S/S are installed &commissioned. PMUs for 91
S/S are integrated with NRLDC.
Out of 6 Analytic Software which are being developed by IIT
Bombay, 4 have been already tested, 1 is under testing and 1 is
under development which will be completed by March,2018. TCC
Deliberations : MS, NRPC requested POWERGRID to share the analytics
of software with constituent. He further suggested to POWERGRID for
holding a separate meeting to discuss the results obtained during
the testing of softwares and to deliberate the issues related to
PMU.
NPC representative stated that it was decided initially to
develop analytics in co-ordination with NPC, CTU and POSOCO. MS,
NRPC stated that representatives from NPC should also be associated
with the meeting.
6. Power evacuation from Dulhasti Power Station, Kishtwar
(J&K) Construction of 2nd 400 kV line
28th Standing Committee
POWERGRID informed that the project was Commissioned in January
2018.
7. Transmission system associated with RAPP- 7&8.
POWERGRID informed that Commissioning of RAPP-Kota section was
expected by September 2017. It was delayed as forest stretch had
now been converted to wild life sanctuary.
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8. Transmission system associated with Kishenganga HEP.
Kishenganga Amargarh 220 kV D/c Kishenganga Wagoora 220 kV D/c
33rd Standing Committee Meeting held On 23/12/2013
POWERGRID had informed that completion schedule of Transmission
system associated with Kishenganga HEP had been delayed due to
unrest in Kashmir. The revised schedule was: Kishenganga Wagoora
220kVD/c line - (Mar.,18) Kishenganga Amargarh 220kV D/c line
(November,17) NHPC informed that Kishenganga HEP would be
commissioned by March, 2018. POWEGRID representative informed that
lines have been charged but any letter regarding the allocation of
Power has not been received. He further requested PDD, J&K
regarding status of second circuit of Dalina Zainkote D/C line.
Representative from PDD, J&K stated second circuit of Dalina
Zainkote D/C line will be commissioned by March, 2018.
9. Fiber Optic based communication system in NR and Additional
OPGW connectivity in Northern Region under fiber optic expansion
project
18th NRPC meeting held on 27th November, 2010 and 28th NRPC
meeting held in 22nd March, 2013
POWERGRID informed that Work on all packages would be completed
by August 2017.
10. Rectification of deficiencies coming out of Basic Protection
Audit carried out by CPRI in association with POWERGRID
27th NRPC meeting held in November 2013
Would be completed by October 2017.
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11. Third party Protection audit of intra-state system / balance
system not covered in Basic Protection Audit
27th NRPC meeting held on 30th November, 2012.
Only UPPTCL had not submitted their action plan. UPPTCL: the
action plan would be submitted shortly.
12. Planning, procurement and deployment of Emergency
Restoration System.
In the 34th NRPC meetings 20th March, 2015
Updated status: DTL:- Delivery has been completed. Training to
be completed by September 2017. PSTCL:-Supply expected by October,
2017. UPPTCL:-02 nos. of ERS have been received. RRVPNL:-
Representative of RRVPNL stated that they were procuring the spare
tower in place of ERS. MS, NRPC told that ERS needs to be procured
as spare towers were not solution for contingencies. SE (C) stated
that it is mandatory to buy ERS for the compliance of CEA
regulatory norms.
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MS, NRPC requested RRVPNL to review their decision of not
procuring ERS and asked representative of RRVPNL to pursue the
Management for procuring ERS. HVPNL:-Earlier it was informed that
in place of ERS, spare towers worth Rs. 2 Crore would be procured.
In 138th OCC meeting, it was informed that the management was
reviewing the issue of procurement of ERS. HVPNL representative
stated that they would be procuring the ERS. He further stated that
tender would be floated shortly. PTCUL:-Tendering is under process.
HPSEBL:Discussions being held with vendor. Suitability of ERS for
critical locations is being explored. Discussions not concluded.
BBMB:-Partner states have agreed to provide the ERS as and when
required by BBMB. J&K:-Order has been placed for 02 No. Of
ERS.
B.10 Replacement of old S900 RTUs
TCC Deliberations
B.10.a) Member Secretary, NRPC informed the Committee that S 900
RTUs are required to be replaced on priority basis as decided in
35th TCC & 39th NRPC meetings. In 12thTeST meeting, POWERGRID
had informed that after due approval from management for
procurement of new RTUs, MoU/Agreement for the same would be sent
to Constituents within 15 days for signing and after signing of
MOU, POWERGRID will float the NIT.
B.10.b) POWERGRID representative informed that they had sent
MOU/Agreement to be signed between POWERGRID & Constituents
(Central/ State Sector) for procurement of RTUs under
deposit/consultancy basis. The signing of MOU/Agreement by
constituents may be expedited so that NIT may be published for
procurement of RTUs at the earliest
B.10.c) NHPC representative informed that agreement has a clause
of wait for 2 years after advance payment which needs to be looked
into.
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B.10.d) TCC advised that all the utilities should sign the
agreement within one month and NRPC Sectt will facilitate the
same.
NRPC Deliberations
B.10.e) NRPC noted the deliberations held in TCC and advised all
concerned utilities to submit signed MOU and agreement to POWERGRID
so that POWERGRID can start procurement at the earliest and
replacement of RTUs before expiry of present AMC contract, as per
the decisions.
B.10.1 Training program for STU personnel on OPGW related
aspects:
TCC Deliberations
B.10.1.a) Member Secretary, NRPC informed the Committee members
that the training program for STU personnel on OPGW related aspects
was held in November17 as approved by TCC/NRPC. TCC members
appreciated POWERGRID and NRPC Secttfor their efforts to organise
this capacity building training and advised NRPC Sectt. toarrange
such trainings in future also.
NRPC Deliberations
B.10.1.b) NRPC noted the TCC deliberations.
B.10.2 Training for EMS application:
TCC Deliberations
B.10.2.a) Member Secretary, NRPC informed the Committee members
that in the 37th TCC and 40th NRPC meeting held on 27th and 28th
October 2017, training programme on EMS training was approved.
B.10.2.b) Accordingly NRPC secretariat had placed order on
SIEMENS for hands on Training on EMS applications at NR SLDCs.
B.10.2.c) M/s SIEMENs had completed EMS Training at Delhi, SLDC
and BBMB, SLDC B.10.2.d) Member Secretary, NRPC informed that EMS
Training at Haryana, Punjab and
HP SLDCs was scheduled to be completed by March/April 2018. For
other SLDCs the training would be completed by April/May, 2018.
B.10.2.e) UPPTCL representative requested for training dates in
UP. Member Secretary, NRPC informed that Training at UP, SLDC will
be in First week of April, 2018
NRPC Deliberations
B.10.2.f) NRPC noted the TCC deliberations.
B.11 OPGW connectivity at NHPC Power Stations under Central
Sector scheme B11.1 URI I Power Station:
B.11.1.a) NHPC representative informed that in 37th TCC and 40th
NRPC meeting held on 27th and 28th October 2017, POWERGRID had
assured to complete OPGW rectification work of URI-I by November
2017. Further in the 12thTeST meeting
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held on 22.12.2017, POWERGRID informed that the rectification
work was delayed due to snowfall. He informed that OPGW work had
not been commissioned till date.
B.11.1.b) POWERGRID representative informed that OPGW has not
been commissioned however the data was flowing through PGCIL
Telecom fiber. POWERGRID informed that the OPGW work would be
completed within 10 days.
B11.2 URI II Power Station:
B.11.2.a) Member Secretary, NRPC informed the members thatin
37th TCC and 40th NRPC meeting held on 27th and 28th October
2017POWERGRID agreed to deploy the team for URI II work after
completion of Kishenpur-Dulhastilink.NRPCSectt.receiveda mail dated
5th Feb,2018 by POWERGRID that, POWERGRID was planning to deploy
AMC vendor M/s Telegence India for laying of OPGW on this link
(Uri-I to Uri-II) from 15.02.2018. POWERGRID also requested NHPC to
instruct URI officials for taking up with District Administration
for providing necessary support during resolution of ROW issues.
AccordinglyNRPCSectt. vide letter dated 7th Feb,2018 requested
Commissioner/Secretary, PDD, J&K to provide required support
from District Administration for the work
Member Secretary NRPC requested POWERGRID to update the
status.
B.11.2.b) POWERGRID representative informed that gangs had been
mobilized. However, due to shelling from Pakistan side, the work
could not be executed. Once shelling stops work would be completed
within 2 months.
B11.3 Bairasiul, Sewa-II and Parbati-III:
TCC Deliberations
B.11.3.a) NHPC reprsentative submitted that Commissioning of
OPGW at Bairasiul and Sewa-II was assured by POWERGRID by November
2017 in 37th TCC and 40th NRPC meeting held on 27th and 28th
October 2017. However in the 12th TeST meeting held on 22.12.2017,
timeline informed for commissioning the OPGW at Bairasiul and
Sewa-II Power Station was February 2018. It was also informed that
commissioning of OPGW at Parbati-III Power Station shall be done by
June 2018.
B.11.3.b) POWERGRID representative informed that Bairasiul,
Sewa-II would be commissioned by March 2018, while Parbati-III
would be commissioned by June,2018 .
NRPC Deliberations
B.11.3.c) NRPC noted the TCC deliberations and requested
POWERGRID to take all necessary action for completion of the work
within the time line agreed in TCC meeting.
B.12 Non availability of data from major PSTCL Sub-stations
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B.12.1 NRLDC representative informed that data from critical
PSTCL substations like 400 kV Talwandisaboo, Muktsar and 400 kV
Nakodar was not available at NRLDC since long. It was due to
faulty/burnt Cards of Communication equipment at 220 kV Moga
sub-station of PSTCL. Cards have burnt at least Eight (08) times in
last 2 years. However, no action has been taken by PSTCL.
B.12.2 NRLDC also informed that PSTCL had only replaced earthing
instead of third party audit (by SAMEER - Govt. of India) as
discussed during the 11thTeST meeting. After the discussion in last
meeting, cards has burnt 2 more times at Moga 220kV (PSTCL) and
caused non-receipt of at least 5-6 sub-station data routed through
that direction.In its 12th TeST meeting held on 22.12.2017, the
TeSTSub-committee expressed its concern on non-availability of
telemetry from a number of stations due to this issue. The
sub-Committee advised representative of PSTCL to get the earthing
audited by third party at the earliest
B.12.3 In the meeting, NRLDC informed that Data was being
received from above PSTCL stations w.e.f. 21.02.2018. PSTCL
representative informed that the third party audit of earthing had
been completed and reports were submitted to POWERGRID. POWERGRID
informed that they were studying the report and further required
action, if any, would be intimated to PSTCL and NRPC Sectt.
NRPC Deliberations
B.12.4 NRPC noted the TCC deliberations. Member Secretary NRPC
requested PSTCL and other constituents to ensure 100 percent
telemetry from all stations.
B.13 Shifting of Rihand-III to WR
B.13.1 NRLDC representative gave the background as given below:
As per discussion at NRPC level in 31st Standing committee meeting
and in 29th
standing committee of WR it was decided that Rihand-III(Unit#5
& 6 =2*500MW) would be shifted from NR to WR by connecting
through Rihand(III)-Vindhyachal PS 2XS/C lines after commissioning
of 3000 MW HVDC Champa-Kurukshetrabipole to relieve line loadings
in Singrauli-Rihand-Anpara complex. Since Champa- Kurukshetrabipole
is in operation since Sept 2017, shifting of Rihand-3 to WR was
proposed by POSOCO, a set of guidelines were finalized based on
studies and the same were circulated to all concerned. Based on the
studies it was decided that synchronization shall be done when
angular separation between Rihand and Vindhyachal Pool is minimum
(within 3 degrees), with Rihand bus leading because power was
supposed to flow from NR(Rihand-III) to WR(Vindhyachal). Further,
as there was shortage of oil used for start-up purpose and since
bus sectionaliser was available at Rihand end, it was decided that
the changeover be done online without taking the units out. B.13.2
After checking of station auxiliaries, lines were idle charged from
both ends one by
one to ensure that lines and terminal equipments are healthy.
Confirmation regarding protection setting and PLCC tuning was taken
from both ends.
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(i) As per the guidelines circulated, first Synchronization was
attempted on 27-Nov-2017. Lines were charged from Vindhyachal PS
end. However, lines could not be synchronized at Rihand Stage-III
end because of problem with the synchronizing trolley at NTPC
Rihand end & hence exercise was postponed.
(ii) Second attempt was initiated on 28-Nov-2017. 400 kV Rihand
(III)-Vindhyachal PS Ckt-1 was idle charged from Vindhyachal PS at
12:06Hrs/28.11.2017. In order to reduce the angular separation
between Rihand&Vindhyachal:
HVDC Champa-KurukshetraBipole power flow was increased (WR to
NR)
HVDC Vindhyachal back to back power order was changed from 100
MW (NR to WR) to 250 MW towards NR
Power order on HVDC Rihand-Dadri was reduced Generation in
Rihand was increased
B.13.3 Shifting of Rihand Stage-III units (Unit No-5, 6) in the
online mode was successfully
executed with coordination in real time between POSOCO, NTPC and
Powergrid (WRTS-II).
After shifting of Rihand stage-III units, NTPC reported problem
of excessive Vibrations in GTs of Rihand stage III when RihandDadri
one pole was operating in ground return mode. In 142nd OCC Meeting,
actions taken by utilities for resolving this issue of vibrations
in Rihand stage-III units were discussed:
NLDC requested planners, CTU, CEA (NPC) to provide assistance
for studies in this regard and asked them to share their
experiences regarding the same.
NRLDC requested NTPC for old data (including information about
any vibrations) when only few units of Rihand (say Rihand-I/
Rihand-II) were commissioned and Rihand-Dadri HVDC bipole was
operated in monopolar operation. Further, information regarding
earthing grid at Rihand 1, 2 & 3 was also asked.
In this regard, NTPC representative informed that they would get
assessment of earthing system at Rihand soon.
B.13.4 NTPC asked about the start-up procedure in case of grid
failure. For the start-up procedure for Rihand-I, II &
Stage-III Units in case of failure of any of Western/ Northern
region, it was decided in 142nd OCC Meeting that normalisation
process may be started with extension of power using bus coupler at
Rihand after taking consent of NRLDC similar to using AC bypass
link at VindhyachalBtB as decided earlier.
B.13.5 NRLDC representative also informed the house that
Shifting of Rihand-3 has helped in relieving line loadings in
Rihand-Singrauli-Anpara complex. However, N-1 contingency of lines
from Anpara (765 kV Unnao, Obra, Mau, Sarnath D/C) may still result
in critical loadings of other lines in the complex. Therefore,
early commissioning of 765 kV Anpara D Unnao needs to be expedited
to relieve line loadings in this complex.
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B.13.6 NRLDC representative also mentioned that since,
Rihand-III is now connected to WR, outage of inter-regional lines
(Rihand III Vindhyachal pool) would be taken care by NLDC in
consultation with NRLDC and WRLDC. In case of constraint in
Vindhyachal complex, the curtailment of Rihand stage 3 would be
done similar to other stations in Vindhyachal complex. Scheduling
of Rihand-III would be continued by NRLDC.
B.13.7 NRLDC representative informed that based on approvals in
OCC, the System Restoration Procedure has been modified to include
utilisation of Rihand stage 3 and Rihand stage 2 bus coupler in the
similar manner as AC bypass at Vindhyachal back to back.
B.13.8 However, NRLDC representative emphasized that the issue
of higher vibration is Rihand stage 3 units during mono pole ground
return operation of Rihand-Dadri HVDC need to be addressed. He said
that as decided in OCC meeting, NTPC shall come out with past data
as well as grounding measurements at all the stages of Rihand.
B.13.9 NTPC representative informed the forum that as per report
from field officers, they have no past history such vibrations at
any of the stages during mono pole ground return HVDC
operation.
B.13.10 TCC recommended formation of a committee with members
from POWERGRID, CTU, CEA, NTPC, POSOCO and NRPC to look into the
issue of high vibrations during mono pole ground return operation
for corrective actions.
NRPC deliberation
B.13.11 NRPC noted the delibration held in TCC and approved the
formation of Committee recommend by TCC.
B.14 AGC Implementation TCC deliberation
B.14.1 NRLDC representative informed the house that Honble CERC
order dated 13th October 2015, highlighted the need for
implementing Automatic generation control in machines. In this
direction, first pilot project of Automatic Generation Control
(AGC) in India has been officially commissioned by POSOCO and NTPC.
This pilot project is controlling the generation of Dadri Stage 2
(980 MW IC) with reference to the Area Control Error (ACE) of
Northern Region from 04.01.2018 onwards.
B.14.2 Further, Honble CERC has asked POSOCO to replicate
similar AGC pilot projects in other regional grids. Implementation
of AGC is crucial at this juncture as it would help adding of
renewable capacity in the grid which is happening at an
unprecedented
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scale and speed (both large-scale grid connected projects as
well as several distributed energy resources primarily in the form
of rooftop solar).
B.14.3 The NRLDC representative also mentioned that there is
separate agenda item from NPC on the subject and a detailed
presentation on AGC would be made on that agenda.
B.14.4 TCC noted the development. NRPC deliberation
B14.5 NRPC noted the information
B.15 Summer Preparedness 2018
B.15.1 NRLDC representative gave a detailed presentation on the
summer preparation. He gave regional and statewise trends of Demand
(MW) and Energy for last 4-5 years and based on these drew
conclusions on rise in demand with rise in temperature, demand
increase trajectory etc. He also put forth the issues specific to
summer/monsoon months for Northern Region. He stated that the
summer and monsoon months are very crucial months for system in
view of highest demand being met in NR during these months. He
presented the high temperature forecast by Indian Meteorological
Department (IMD) for summer months wherein about 1-2 degrees higher
temperatures have been predicted in NR while the same around 1
degree higher in the rest of country. He also mentioned that the
hydro generation at present is lower than the past year though
reservoir position is almost similar to last year. The
representatives of hydro stations also informed that house that
this these is less snow and therefore hydro generation is on lower
side.
B.15.2 He mentioned following characteristics of summer/monsoon
power system operation of NR:
High Demand High loading/ High Reactive Power Requirement High
hydro generation Thunderstorm during summer Silt during
Summer/Monsoon Transfer Capability violations
On each of the above points, NRLDC gave past statistics to
highlight the issues. He also stated that fuel shortage this year
combined low hydro generation could be difficult and therefore,
requested all the utilities to buildup enough fuel stock for
increasing the internal generation in NR and for also for keeping
reserves in the each of control area.
B.15.3 He also mentioned following Action plans: Meticulous load
forecasting and portfolio management TTC/ATC calculations, keeping
margins, Network Tower strengthening, New network commissioning
Keeping fuel reserves Keeping reserves (generation in control areas
for contingencies)
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Following was agreed during the meeting
B.15.4 Weather Monitoring & Load forecast All the entities
would endeavor to forecast their loads meticulously in advance
for
their portfolio management plans and also on day ahead and real
time basis taking into weather into account. They would also be
utilizing the IMD (in coordination with POSOCO) developed dedicated
website for Northern region (link:
http://amssdelhi.gov.in/NRLDC/main/MAIN.html) for getting weather
warnings and other meteograms, Radar images etc. The impact of
lunar eclipse on 31.01.2018 and consequent very large deviation
from schedule by states (specially of Southern Region) was also
discussed to highlight the impact of social events of electricity
consumptions and therefore factoring them in load forecasting is
essential.
B.15.5 TCC also advised the utilities to take actions for
reducing the forecast errors. J&K PDD was also requested to
start sharing forecast with NRLDC at the earliest as mandated in
IEGC and agreed to earlier TCC/NRPC meetings.
B.15.6 Thunderstorm/Load crash during summer: Based on past data
presented by NRLDC on load crash, tower collapses and very
longer time for revival of lines, the TCC emphasized: Tower
strengthening and keeping availabi