भारत सरकार उ�र क्ष� यिवत सयसयत 18-ए, श.जत �सह सागर , कटा�र�ा सरा�, नई �दल- 110016 Government of India Northern Regional Power Committee 18-A, S. Jeet Singh Marg, Katwaria Sarai, New Delhi-110016 स.उक्यस/ �चान /108/04/ 2014 / �दनांक : 29.05.2014 No. NRPC / OPR /108/04 / 2014 / Dated: 29.05.2014 Subject: Minutes of 1 st Meeting of Telecommunication, SCADA & Telemetry (TeST) Sub Committee The summary record of discussion of the 1 st meeting of Telecommunication, SCADA & Telemetry Sub Committee held on 17 th April 2014 have been issued and are available on NRPC’s Website at www.nrpc.gov.in. (Ajay Talegaonkar) S.E. (Operations) & Member Convener TeST sub-committee All members of of TeST sub-committee फोन-26511211 , 6868681 फे कFax :26865206 ई मेल e- mail: [email protected]वेबाईटWebsite : www.nrpc.gov.in
Transcript
भारत सरकार
उ�र कष्े� य िवत सयसयत
18-ए, श.जेत �सह सागर, कट ा�र�ा सरा�,
नई �दल्े- 110016
Government of India Northern Regional Power Committee
18-A, S. Jeet Singh Marg, Katwaria Sarai, New Delhi-110016
34. Development Commissioner (P), PDD, Srinagar, J&K, (Fax-0194-2452173)
35. Managing Director, J&K State Power Dev. Corp., Srinagar, J&K, (Fax-0194- 2500145)
NORTHERN REGIONAL POWER COMMITTEE Minutes of Meeting of first (1st) Meeting of Telecommunication, SCADA & Telemetry (TeST) Sub
Committee held on 17th April 2014 at Kasauli, Himachal Pradesh
(List of participants is enclosed at Annex –I) Member Secretary (I/C), NRPC welcomed all delegates to the first meeting of
Telecommunication, SCADA & Telemetry Sub Committee and stressed upon the importance of
logistical activity and telemetry. He expressed concern that telemetry from large number of stations in
the region is not functional or is not reliable. He requested POWERGRID to complete the task of
laying OPGW as scheduled. In his welcome address, GM(NR-II), POWERGRID emphasizes on the
necessity of the continuous and reliable data availability through telemetry from all generating
stations and SLDCs with NRLDC.
In his opening remark, SE(Operation) NRPC requested members to provide dedicated manpower at
SLDCs/ sub stations for SCADA & telemetry data. Thereafter, the regular agenda was taken up for
discussion.
1. Confirmation of Minutes of 36th
USMG meeting
TeST Sub-committee confirmed the minutes of 36thUSMG meeting held on 18th Feb 2014 with
the amendment suggested by UPPTCL. Representative of UPPTCL stated that Annexure- I &II
mentioned in MOM were not available on the website. SE(O), NRPC agreed to provide the
Annexures.
2. SCADA/EMS Upgradation Project
2.1 Issues raised by NRLDC
2.1.1 Status of SCADA/EMS Project:-
POWERGRID made a presentation about the status of the project and plan of M/s Siemens for
SAT of the SCADA functionality for project. Representative of POWERGRID agreed to complete
SCADA SAT by end of June 2014 and indicated their plan for EMS completion by Sept’14 based
on progress by Siemens. He informed that parallel reporting of the existing RTUs have started
and 361 RTUs, out of total 556 RTUs have already been integrated in the new system. Further,
SAT of VCS has also been completed. The VPS at HPSEB, BBMB, RRVPNL, PSTCL,HVPNL
and DTL have been installed. Installation of VPS at UPPTCL was on hold as it was to be installed
at new SLDC building at Gomatinagar, which was under construction. Representative of
POWERGRID submitted the plan for installation at Jammu & Srinagar and SAT plan of VPS for
all SLDCs. He further informed that Hardware & Software for SCADA had been delivered and
installed at all locations except Srinagar & Backup RLDC. Detailed status of the activities is
enclosed at Annex-II
2.1.2 Representative of POWERGRID informed that the database changes and display requirements
were to be sent to M/s Siemens by 28th February, 2014. The details had been received
only from BBMB & PSTCL. It had been decided to go ahead with the details received and make
the system ready for SAT. The constituents agreed to submit the details by end of April 2014.
2.1.3 Installation of the UPS Representative of POWERGRID informed that though supply of UPS, ACDB and Battery bank
had been made at all sites, installation was getting delayed due to site readiness issues; mainly
non-completion of trench and foundation for DG set. The detailed layout of the trench and details
of DG set foundation had been submitted to the constituents. All members were requested to
assign top priority on completion of trench and DG set foundation. SE (O), NRPC requested all
constituents to complete civil work by end of May’14. All constituents agreed to it. The detailed
status of installation of UPS is attached at Annex – III. 2.1.4 Site Acceptance Test:
Representative of POWERGRID informed that after data & Display validation, SAT of SCADA
would be started from mid May’14. Accordingly, constituents should associate their engineers for
above activities. It was also pointed out by POWERGRID that to expedite activities at sites,
SIEMENS had been asked to work till late evening, weekends & on holidays also. However,
SIEMENS had informed that at some sites they were not allowed to work after working hours.
POWERGRID sought special permission from constituents for working on holidays and on late
evening to expedite installation, testing & commissioning work. All members present in the
meeting agreed to the proposal.
Representative of UPPTCL requested details from POWERGRID regarding pending works and
requested for submission of revised work schedule. POWERGRID representative informed that
original schedule was as per contract and it cannot be revised at this stage. SE(O),NRPC
requested POWERGRID to submit copy of SIEMENS revised work schedule to all members and
NRLDC, to facilitate fast completion with coordination from all sites. POWERGRID agreed to
submit the same.
POWERGRID also shared the tentative schedules of SAT, which is attached at Annex – IV.
2.1.5 Integration of Uttarakhand SLDC:
Representative of PTCUL informed that they had taken action for obtaining the leased line for the
ICCP link from BSNL and needed 4 weeks time for operation and synchronizing of the link. He
also informed that they need advance intimation for establishment of ICCP link to ensure
presence of Alstom representative. NRLDC informed that the configuration of the link and data
population had already been completed in new System and was ready for association and data
exchange and the work could be taken up as and when communication link is ready. NRLDC
informed tentative date of 30th May 2014 for this work. SE(O) NRPC requested representative of
PTCUL to arrange alternative data channel through some other telecom service provider to
ensure that Data is not affected in case of failure of BSNL link. PITCUL representative agreed to
take up this issue with higher authorities
2.1.6 Communication between main and Back-up control centre of NRLDC Representative of NRLDC stated that the communication between main and back-up control
centre needed to be established for data exchange. Representative of POWERGRID informed
that availability of communication between main and back-up control centers including NRLDC
Main and Back-up was expected to be completed by July, 2014. He also informed that
communication plan from RTU to back-up control centre for direct reporting can only be taken up
after completion of the parallel operation and informed that the design is being done to establish
the direct communication as envisaged.
2.1.7 Training schedule for the balance training: Representative of POWERGRID requested for
nomination from constituents for NMS & APS training. SE(O), NRPC requested all members to
submit their nominations by 21st April 2013 for training schedule for NMS and by 25th April 2014
for Auxiliary Power System and for other trainings by 30th April 2014. All members agreed for the
same.
2.2 Issues raised by UPPTCL
I. Representative of UPPTCL desired to know status of redundant VLANs for connecting sub
SLDCs (Varanasi, Moradabad, Modipuram, Panki) and Main & Black up SLDCs.
Representative of POWERGRID informed that the VLANs have already been implemented
except Panki, which shall be made operational by 24.04.2014.
II. Representative of UPPTCL desired to know status of redundant VLANs for connecting
NRLDC & SLDCs. Representative of NRLDC informed that the VLANs were already in
service and ICCP association was being established for data exchange between NRLDC
and the Utilities.
III. Representative of UPPTCL desired to know status of redundant VLANs for connecting
miscellaneous items like remote VDU, VOIP etc to various sub LDCs. Representative of
POWERGRID informed that all above items would be made available by June, 2014.
IV. Representative of UPPTCL stated that POWERGRID has not shared many TECH
documents related to projects with the UPPTCL and requested to share all the documents
issued till date. POWERGRID informed that there are many documents which are
correspondence between POWERGRID and SIEMENS but do not fall in the category of
approved documents. All approved documents are shared with constituents. Further,
POWERGRID stated that they shall share all the documents based on the approved
document list.
2.3 Issues raised by BBMB
2.3.1 Disposal of old and obsolete equipment. Representative of BBMB requested POWERGRID to explore the possibility of disposing the
equipment which were installed under phase – I ULDC project after commissioning of the new
SCADA/EMS system by Siemens. POWERGRID informed that tariff for ULDC phase – I project
is regulated as per CERC orders. POWERGRID being a regulated entity, CERC needs to be
approached for the disposal activity and assured that CERC directions in this regard shall be
complied.
2.3.2 Finalization of Database for SAT.
Representative of BBMB opined that the database should be updated as per existing
configuration before SAT which is a pre-requisite for running State Estimator. Representative of
NRLDC pointed out that in the 36th USMG Meeting held on 18.02.2014 all the members had
agreed that SCADA SAT would be carried out on that database modeled upto 28.02.14 only.
SE(O), NRPC opined that the power system network is changing continuously and the new
stations need to be integrated as and when the stations are coming up. However, we need to fix
a database, so that SAT could be completed on that agreed database for uninterrupted testing.
It was agreed that SAT shall be carried out on the database furnished till 28.02.2014. However,
the new RTUs shall be gradually integrated in the system during parallel operation.
It was also agreed that the database shall be provided as and when the RTUs are integrated in
the system. BBMB in this regard informed that the vendor was yet to furnish the database for the
new RTUs which were being installed in BBMB system. POWEGRID informed that the matter
had already been taken up the SCADA vendor and the same shall be submitted by 30.04.2014.
2.3.3 AMC of SCADA/EMS System
Representative of POWERGRID submitted that BBMB was still to sign the AMC contract. BBMB
informed that SIEMENS had given additional terms and condition for delayed payment charges
by the partner States, however, similar condition is not applicable if payment is delayed by other
beneficiaries. In view of this dichotomy it would be very difficult to take management approval.
BBMB requested POWERGRID to organize a meeting with SIEMENS at Chandigarh to resolve
the issue. POWERGRID informed that AMC is bilateral contract between SIEMENS and
POWERGRID and POWERGRID had no locus standi. However, to resolve the long standing
impasse, they would convene a meeting at Chandigarh in the first week of May’14.
POWERGRID informed that since AMC shall start immediately after the completion of SAT as
per contract, AMC service may not be available for BBMB, if the signing is delayed beyond SAT
and hence requested BBMB to resolve the issue at the earliest.
2.3.4 ICCP link between BBMB and HVPNL
In the 35th USMG meeting, it was decided to provide a separate ICCP link between BBMB and
HVPNL so as to facilitate data exchange between them directly as it is not presently envisaged
to share all the data among the constituents. Representative of BBMB requested that the link
may be provided and tested before the start of Site Acceptance Test of SCADA/EMS System.
After deliberation, it was decided that the ICCP association shall be tested between BBMB and
HVPNL, provided the communication is made available before SAT and the data population
shall be done after SAT. NRLDC agreed for sharing the data for six months to facilitate
completion of SAT and parallel operation of the old and new SCADA system. After the parallel
operation is over, direct data link shall be made between SLDC, Haryana and Control Centre,
BBMB for data exchange on ICCP.
2.3.5 Site Acceptance Test of Video Conferencing System under ULDC Phase – II.
Representative of BBMB stated that in the 36th USMG Meeting it was informed by
POWERGRID that the bandwidth of Video Conferencing Systems having Multi Conferencing
Units i.e, at BBMB, NRLDC and NRPC shall be increased to 3 Mbps. Further, it was also
proposed to establish a 10 Mbps VLAN for Video Conferencing System. However, the
bandwidth had not been increased that far. It was further stated by BBMB that the Site
Acceptance Test pertaining to demonstration of requisite bandwidth and IP conflict warning
was also pending.
After deliberations, it was agreed by POWERGRID that the bandwidth for BBMB Video
Conferencing System shall be increased to 3 Mbps or higher at the time of SAT and the
procedure for Site Acceptance Test shall be suitably modified to complete the pending tests.
2.3.6 Integration of Numerical Relays
BBMB informed that they have given ICD /SCD files of 61850 compliant Numerical Relays to
M/s Siemens for integration with new RTUs being installed in BBMB. However, it had been
conveyed by Site Engineer as well as Project Manager of Siemens that this work was not in their
scope. In this regard, BBMB requested POWERGRID to persuade M/s Siemens to integrate
61850 compliant Numerical Relays with SCADA system. Representative of POWERGRID
informed that this work was not covered under the scope of existing contract.
2.3.7 Modalities for use of Wideband Communication Network Established under ULDC Scheme:
Representative of BBMB stated that the issue was discussed in the 33rd USMG Meeting
wherein POWERGRID had informed that if there are any requirements of any constituent for
use of Wideband Communication Network Established under ULDC Scheme then this might
be considered on case to case basis. He added that BBMB had procured Digital Protection
Couplers for some of the substations. He requested that E1 connectivity was required by
BBMB for three links, so that the DPCs can be commissioned:
Representative of POWERGRID informed that presently, the communication system is still
running on the equipment supplied and installed under ULDC phase-I. With evolution of new
interfaces, communication equipment needs up-gradation. Hence this issue may be
deliberated once STM-16 level equipment are installed having Ethernet interfaces.
2.3.8 Provision of Optical Fiber Communication Channels for integration of RTUs and SCADA Remote Consoles at BBMB SLDC
Representative of BBMB requested POWERGRID to expedite the supply of requisite hardware
to avoid any delay in integration of RTUs and SCADA Remote Consoles at various sites.
Representative of POWERGRID informed that necessary action in this regard was being taken
and wherever RTUs cannot be integrated on Ethernet, converters may be installed.
3. Hotline Communication system
POWERGRID had awarded hotline communication system for voice communication among
NLDC, RLDCs, SLDCs and Central Sector stations. The EPABX envisaged in the project was
having VFE&M, FXO/FXS (interfaces for analog telephony) and VOIP protocols. POWERGRID
informed that request has been sent to all constituents on 7th April, 2014 to furnish the detail of
interface requirement, so that BOQ could be finalized. It was agreed that all constituents would
provide the details by 30th April, 2014.
4. Status of OPGW projects:
POWERGRID was requested to provide updated status of implementation of the various ongoing
OPGW projects. Representative of POWERGRID informed that installation of OPGW and
communication equipment under Microwave replacement project had been completed. Further,
1350 Km of OPGW had been installed against 4500 Km under Central sector. Constituents
enquired about status of placement of contract for OPGW work for state sector. POWERGRID
informed that due to very poor response earlier issued NIT has been annulled and new NIT shall
be floated in May’14 last.
5. URTDSM Project;
Representative of NRLDC requested POWERGRID to provide list of facilities to be made
available at RLDC and SLDCs under URTDSM Project. He also requested POWERGRID to
share the detailed designs with all the constituents. Further, he requested POWERGRID to
intimate current status of the project.
Representative of POWERGRID informed that notice of award has been issued to ALSTOM
for URTDSM project . Detailed LOA, wherein technical specifications are also included, would
be issued within a week. Copy of the same shall also be given to all nodal officers.
POWERGRID requested all constituents to identify nodal officers for said work. After
discussion it was agreed that members nominated by each constituent for TeST sub-
committee would be Nodal officer for URTDSM project. ALSTOM have informed that they
would be starting survey for the said work POWERGRID informed that requirement of
additional cards, communication nodes etc shall be taken care of by them. SE(O) ,NRPC
requested POWERGRID to submit the details about the project and list of locations where
PMUs/PDCs would be installed. POWERGRID agreed to provide the same to all constituents
within two-three days..
6. Status of Telemetry
GM, NRLDC briefed the sub-committee about serious operational difficulties due to non
availability of data from Power stations and sub-stations. Representative of NRLDC then
presented the status of Telemetry. NRLDC informed that data from most of the new generating
stations including Kawai and Kalisindh were also not available at NRLDC leading to serious
operational problem. He informed that data from stations at 400 kV level in Rajastan and
Punjab was also not available to NRLDC, which is a matter of concern. Representative of
RRVPNL informed that they were continuously pursuing the issue with Rajastan Vidyut Utpadan
Nigam but the stations are yet to be integrated. SE(O), NRPC requested RRVPNL to use
regulatory provisions and impress on RVUN so that the data is made available without any
further delay. He also requested PSTCL to look into the problem of non-availability of data from
Punjab locations and resolve it expeditiously. SE(O),informed that CERC is regularly monitoring
the issue and the non-availability of telemetry may be viewed very seriously by the regulators.
He requested all the members to look into the matter on priority basis so that the data availability
is improved to facilitate system operation.
SE(O), NRPC informed that there was a meeting held on Punjab telemetry issues in Feb 2014
and no action plan was received from Punjab till date for restoration of the telemetry. He also
opined that a report on %age availability of the data points should be prepared for continuous
monitoring and the monthly status may be submitted to NRPC for review.
GM(NR-II), POWERGRID informed that even after sincere efforts by SLDCs these issues are
not resolved and requested Member Secretary, NRPC to take up this issue with CEA/Ministry of
Power.
7. Signing of AMC Contract Representative of POWERGRID stated that in the 28th NRPC meeting it was decided that all
the constituents would sign the agreement for maintenance contract for SCADA/EMS system
with M/S SIEMENS by 15th May 2013. It was informed by POWERGRID representative that
only PDD (J&K), HVPNL and RRVPNL have done so. During deliberations all other constituents
members agreed to send signed letters by 15.05.14.
8. Signing of MOU for maintenance of OPGW POWERGRID representative informed that warranty period for many of the OPGW links
installed under microwave replacement system was over and AMC had to be awarded.
Constituents had agreed for the same in 36th USMG meeting. However, MOU for the same was
yet to be signed. Constituents informed that they had not received the MOU. It was agreed that
on receipt of MOUs, constituents would expedite signing of same.
9. Data availability (Analog & Digital) for EMS SAT
NRLDC representative informed that % age availability of analog and digital data was very
poor and needed to be improved. As the basic network formation in state Estimator application
depends on the reliability of input (Analog & Digital data) same need be monitored on priority
basis for successful running of the application. SE(O), NRPC and GM, NRLDC requested all
SLDCs to ensure uninterrupted data receipt from all connected stations to NRLDC. NRLDC
requested all the members to monitor the RTU availability on daily basis and ensure analog
and digital data is made available at SLDCs for successful operation of EMS application and
for SAT of EMS. Constituents informed that the work involves rectification of auxiliary contacts
from field (Isolator & Breaker) and involvement of transmission wing is required. They informed
it is very difficult to involve site people from different department. It was agreed that to start
with, data from all 400 KV stations would be made good.
10. Signing of side-letter to MOU for Wideband communication equipment (Valid upto15.03.14)
Representative of POWERGRID informed that they were yet to receive side-letters to MOU
from states for wide band communication. SE(O), NRPC requested constituent members to
send the signed letters before 25th April 2014 . Representative of HPSEB has raised some
commercial issues to sign maintenance contract . After deliberations HPSEB was advised to
sign the contract if terms and conditions contained in the contract are agreeable to them, or
they can make their own arrangement for the maintenance of the equipment. 11. Strengthening of SLDC-NRLDC (UGFO) link of DTL-Path redundancy
Representative of POWERGRID informed that FO connectivity between SLDC, Delhi at Minto
Road and NRLDC is mainly over OPGW, however there are two Under Ground Fibre Optic
(UGFO) sections ( NRLDC-Vasantkunj & IP EXTN-Minto Road) which are vulnerable due to
frequent cut of OFC by various agencies. UGFO portion of NRLDC-Vasantkunj has been
secured by laying UGFO on fairly secured path and by taking one pair of fibre from PDT
through different route. However IP Extn- Minto Road portion laid by DTL had been cut on
various occasions and took many days to restore thus totally isolating SLDC from NRLDC.
DTL informed that they would provide alternate link by 15.06.14.
12. Replacement of battery Banks by DTL
Representative of POWERGTID stated that DTL was yet to replace 48 VDC battery banks at
32 locations. DTL informed that the battery bank at eight locations had been replaced and
others were in tendering stage. Representative of POWERGTID stated that being a critical
issue, the battery banks should be replaced on priority Considering the importance of the
issue, Member Secretary, NRPC advised DTL to complete this process by June 2014.
Representative of DTL agreed to expedite the process.
13. Criteria for deriving OPGW requirement on transmission lines
SE(O), NRPC informed that criteria for deriving OPGW requirement had been approved by
NRPC in its 30th meeting held on 28.02.2014. He requested members to take up
implementation of this criterion. Further, the matter regarding implementation of this criteria
and demarcation of responsibilities etc was left to be further deliberated in the TeST sub-
committee meeting. After deliberations, it was decided that a draft document regarding
modalities for implementation of this criteria, demarcation of responsibilities etc would be
prepared by POWERGRID for discussion in the next sub-committee meeting. Any suggestions
in this regard should be submitted to POWERGRID with copy to NRPC Secretariat.
NRPC had also advised TeST sub-committee to examine suggestion that all lines of 220 kV
and above should be constructed with OPGW. The issue was deliberated and it was agreed
that if optical fibre connectivity with enough redundancy is already available between two
nodes, it may not be necessary to have OPGW on new line being constructed between these
two nodes.
Representative of PSTCL informed that since OPGW installation required experienced gangs
and same are not available with existing contractors they could not include this requirement
in original contracts. SE(O), NRPC requested PSTCL & other STUs to develop necessary
expertise internally or through vendors.
14. Planning, monitoring and maintenance of telecommunications system for data and
speech
Representative of PSTCL informed that proper AMC criteria required for proper operation and
maintenance of OPGW system with allied Termination Equipment . Along with ongoing OPGW
installations AMC should also cover OPGW requirement of all the remaining 132/220 kV sub-
stations along with proposed replacement of 1197 kms of earth wire with OPGW PSTCL
representative has submitted proposals in their agenda and requested POWERGRID to
consider their proposal. On deliberations on above issues, it was suggested AMC contract on
per kilo meter criteria could be awarded to cover both ongoing and future OPGW installations
15. Remote Terminal Units and their maintenance Representative of PSTCL stated that NRPC had approved RTUs specifications along with
make and models for the purpose of easy integration with ALSTOM supplied SCADA/EMS
system and accordingly RTUs were being procured. He requested for updating the technical
specification for the new system. Representative of POWERGRID informed that the
specification of the RTU is already available in the SCADA/EMS specifications released by
POWERGRID and the same could also been used for this purpose.
16. Frequent disruption of data
Representative of UPPTCL stated that data transmission to NRLDC was affected due to
frequent link failure between Sarojini Nagar and Shakti Bhawan. Representative of
POWERGRID informed that this problem would be permanently resolved with alternative
route/radio connectivity by July 2014 17 .Disruption of data availability of RTUs on fiber optic route
Representative of UPPTCL informed that there were some RTUs whose data availability is not
satisfactory even when these are on fiber optic link and requested other members to share
their experience. Representative of POWERGRID informed that with wide band connectivity,
there was hardly any chance for disruption of data due to communication failure. Other
members also informed that no such phenomenon was observed by them till date with OPGW
connectivity.
Representative of UPPTCL stated that non-availability of data from the central Sector RTUs
was leading to wrong calculation of drawl. He specially mentioned Sohawal and Lucknow 400
kV RTU. Representative of POWERGRID informed that necessary action had already been
initiated for these RTUs and these were expected to be restored within a weeks time.
Annex-I
List of participants for 1st Telecommunication, SCADA and Telemetry sub-committee
