March 2016 Page 1 - Southern Regional Power Committee ... · reading of NP -9618-A Karaikudi ... Committee requested the meter owners to specify the modbus ... of Nodal Officers -29th

Summary of deliberations -2nd Meeting of Nodal Officers -29th March 2016 Page 1

Summary of Deliberations in the Nodal Officers Meeting on SEM Data Coordination held on 29th March 2016 at SRPC, Bengaluru

Background

The 1st meeting of Nodal Officers for SEM coordination was held on 15th July 2015 and the Record Notes of the Discussions were circulated on 22.07.2015.

In the 30th Meeting of Commercial Sub-Committee of SRPC held on 4th February 2016 it was agreed to convene the 2nd Meeting of Nodal Officers for SEM data coordination. Accordingly, the 2nd Meeting of the Nodal Officers was conducted in SRPC, Bengaluru on 29th March 2016.Thelist of participants is enclosed at Annexure-1.

Introduction

SE (C), SRPC welcomed all the Nodal Officers and participants to the 2nd Meeting of Nodal officers for SEM data coordination. He requested the utilities to send the SEM data to SRLDC within the prescribed time as stipulated in the IEGC.

DGM, SRLDC welcomed all the participants to the meeting. He thanked all the nodal officers for the excellent cooperation being rendered by them. He stated that the response from the coordinators had been encouraging and the improvement in data receipts was noted. He requested nodal officers/maintenance staff to maintain sufficient spares /accessories at the locations for early rectification.

SRLDC made a presentation regarding the salient features of SEM, measurement, principle and accounting procedure etc. The copy of the presentation is available at Annexure-2. Agenda points were taken up for deliberation by SRLDC.

1. The persistent problems in the SEM data receipt

Utility Station(s) Issues to be addressed Andhra Pradesh Nunna Huge Time drift Tamil Nadu Thiruvalam, Theni Huge time drift. Expedite

replacement of SEM. POWERGRID (SRTS-1)

Nellore Pooling station Time drift observed

Karnataka Guttur, Kadra, Kodasalli

Non receipt of SEM data

TN Kayathar Non receipt of data and Data format error. Non


collection of SEM data when elements under LC

POWERGRID (SRTS-II)

Karaikudi Non collection of SEM data when elements under LC

Hosur/Salem No SEM either end of

400kV Hosur –Salem line-2

Mysore No SEMs on 400kV

Nelamangala Lines 1&2 at Mysore end

Thiruvalam Jump in the reactive

reading of NP-9618-A

Karaikudi Jump in the reactive

reading of NP-9602-A

Deliberations in the meeting:

a. AP: SRLDC informed that SEM with huge time drift is replaced at Nunna and the present time drift is 11-12 minutes. SRLDC pointed out that Time drifts of SEMS should be checked before installation for ensuring no time drift. SRLDC also informed that huge time drifts were being observed in the SEM data pertaining to the lines VTS-Malkaram, Srisailam-Dindi & KTS-Nunna.

b. TN: TANTRANSCO informed that the SEM at Thiruvalam end would be replaced with the new SEM by 15.04.2016.With respect to SEM at Kayathar, SRLDC informed that powering up the SEM through external supply needed to be expedited as during the LC of the elements, the data collection was not possible due to lack of external supply. TANTRANSCO informed that a workshop was held for all the field officers regarding the pending issues with respect to SEMs. The issue would be solved with in a month’s time.

c. Karnataka: Regarding the non receipt of SEM data from Guttur, Kadra and Kodasalli, SRLDC informed that there were some metering issues at Kadra & Kodasalli and needed to be expedited whereas the data from Guttur was not consistent. It was observed that Kodasalli data had been improved since few days. Karnataka informed that the matter shall be taken up with Kadra & Kodasalli stations and would be resolved shortly. KPTCL informed that there were SEM issues at Nelamangala (L&T make). L&T suggested KPTCL to change the SEMs being very old meters.


d. PGCIL, SR I: With respect to time drift at Nellore PS, forum requested SRTS I to replace the meters at the earliest. PGCIL , SRTS I informed that time drift of ~13 Min is observed at two of the SEMs at Nellore PS and the rest of the SEM are having drift of ~2 Min. . It was also informed that necessary instructions have been given to stations to correct the drift every week. SRLDC recollected that in the past Regional Labs, during the period of storage, SEMs were being kept powered up in alternate batches to avoid draining of the internal battery. Similar practice may be continued to reduce the Time drift during storage..

e. PGCIL, SR II: SRLDC informed the similar issues as in Kayathar case were there in Karaikudi SS, i.e during line outage, data collection was not done. SRTS- II informed that necessary instructions regarding the same had been given to the station and would be rectified shortly.

Forum suggested to replace the SEMs where time drift was of more than 5 minutes and problems persist.

f. Installation of SEM’s at Hoody, Mysore and Hosur

The following were deliberated wrt non –availability of SEMs on Nelamangala lines 1 &2 at Mysore and at Hoody. Hosur etc.

SRTS II,PGCIL informed that they were not having sufficient SEM’s for replacement.

SE(C),SRPC enquired about the status of procurement of 200 number of SEM’s order placed by PGCIL.PGCIL informed that they were yet to get SEM from the manufacturer (SML) to install the SEM’s.

Representative from M/s SML informed that they would supply the SEM in a phased manner. He also assured that 30 no of SEMs would be supplied to PGCIL latest by 15th April 2016.

SRTS II,PGCIL informed that they have installed SEM at Hosur end of 400 kV Hosur –Salem Line 2.

SRLDC requested SRTS II,PGCIL to install SEMs on priority basis at Hoody end of 400 kV Kolar-Hoody Line I & II and at Mysore End of 400kV Nelamangala –Mysore Line I & II.

SRTS II,PGCIL agreed to install the SEMs within 5 days after receipt of SEMs from Secure Energy Ltd.


g. Reactive Register Jump

SRLDC informed that reactive register jump was observed by them in few locations in SR and the list of such incidents were tabulated below.

Elster Make: M/s Elster representative requested PGCIL to hand over two of the four defective SEMs for testing immediately and the remaining two SEM’s at a later date for testing.

L& T make: M/s L&T also requested PGCIL to hand over the defective SEM for replacement.

h. Deliberations regarding SEM data Storage and Record keeping

SRLDC requested the utilities to preserve the SEM data for future reference.

NLC TS2 enquired about how many years data needs to be stored, so that they can appraise their management for procuring higher capacity storage device (hard disk). The committee felt as the data has high commercial value, it needs to be stored for posterity for an unlimited period by suitably tagging with week name and station /feeder name. Record of CT/PT ratio changes also is to be maintained.

NTPC, NLC and other constituents requested regarding directions (i.e minutes of the meeting Regulation etc) to increase the capacity of hard disk to store the SEM data.

PGCIL enquired whether data of block wise SEM data can be transferred to RLDC/SLDC after the completion of the each block (in real-time). M/s SML representative clarified the same is possible with Mod Bus protocol. M/s Elster representative also stated that the data can be shared with open protocol using RS 485 interface.


Committee requested the meter owners to specify the modbus protocol in future procurements so that AMR like scheme can be implemented without any need to obtain the data transfer protocol from the manufacturer.

i. Kaiga GT-4 Under recording issue

In the meeting Kaiga GS highlighted the under recording of the SEM at GT-4.

SRTS II, PGCIL agreed to replace the SEM.

2. Delay in Receipt of SEM data:

SRLDC informed that frequently, data was being received after 12noon of Tuesday, from the following stations. 1. Guttur 2. Kadra

SRLDC highlighted the list of stations where SEM data is being received after 12:00 noon of Tuesday and is enclosed at Annexure-3. All nodal officers agreed to ensure data transmission to SRLDC in a timely manner.

3. Non-compliance of SEM data format:

SRLDC informed the SEM data format error in SML SEMs is resolved and the revised software needs to be circulated to all the sites.


SML representative informed that they shall provide the revised software with necessary instructions to PGCIL.

It was noted that revised patches had been received at SRLDC, but not the sites

PGCIL agreed to circulate the same to all the nodal officers and Nodal officers were requested to ensure that the revised software shall reach all stations under their purview.

SRLDC requested SML and L&T to provide an option in the software so that multiple MRI files can be converted to a single NPC file. SML agreed for the same. SRLDC requested L&T to provide the same features in VINCOm as available in VINPLUS. Alternately, Software in DCD and down loading software in the PC may be upgraded to VINPLUS version so that for the same meter, VINPLUS can be used. This would also resolve the over-


recording problem. L&T assured they would coordinate with Meter owners SRTS-I, SRTS-II and do the needful.

4. Naming convention for the data file

SRLDC informed the locations (from which they have yet to resolve)regarding Non-compliance of Naming convention for the data file (station end dd mm) –Annexure- 4 .


All Nodal officers agreed to send the SEM data as per the naming format prescribed by SRLDC.

PGCIL requested SRLDC to circulate naming format and station codes.

SRLDC agreed to circulate the same to all the nodal officers. The same is available in the web link: http://srldc.org/SEM%20Logistics.aspx

All the utilities agreed to resolve the issue latest by 11.04.2016.

5. Non Receipt of encrypted data and NPC (text) files:

SRLDC informed that all the sites need to send encrypted file (MRI/DAT/RM3) as well as NPC file every week to SRLDC. Stations sending either encrypted file only or NPC file are listed in Annexure-5.


SRLDC informed that many sites were sending either encrypted file or NPC file only. NPC files were coming partially from Vijayawada.

It was noted handling of L&T meters software was very difficult. L&T informed that at some location like NCTPS and MTPS NPC files were in the form of DAT files but nothing wrong with software.

All the sites needed to send both encrypted file (MRI/DAT/RM3) as well as NPC file every week to SRLDC.

All the Nodal officers agreed to resolve the issue by latest by 11.04.2016.

http://srldc.org/SEM%20Logistics.aspx


6. Over recording of SEM:

SRLDC presented few instances of over recording of SEM and the list of such incidences are detailed below.

S.No. Element SEM Sl No Date Time 1 Somanahalli ICT-2 (HV) NP-5122-A 02-12-2014 07:45 2 Somanahalli ICT-1(LV) NP-5121-A 02-12-2014 08:15 3 Vizag ICT-1 NP-5367-A 10-02-2015 17:30 4 Vizag ICT-2 NP-5527-A 10-02-2015 18:00 5 Talcher I/C -2 NP-5076-A 20-02-2015 16:30 6 Somanahalli ICT-1 (LV) NP-5121-A 26-02-2015 15:30 7 Kalvinthapattu-ICT-2 NP-5681-A 07-03-2015 10:15 8 Kaiga GT-4 (HV) NP-6184-A 21-03-2015 02:45 9 Talcher I/C -2 NP-5076-A 05-04-2015 13:45 10 Simadhri I/C -2 NP-7203-A 13-04-2015 10:30

12 Kochi ICT-2 NP-6172-A

22-06-2015 09:30

13 Vijayawada Line-1 at VTPS NP-5382-A 29-06-2015 10:30

14 Udpt. LV Side of 400/230kV ICT 3 NP-5655-A 15-07-2015 18:30

15 Kalivanthapattu HV Side of ICT-2 NP-5684-A 24-07-2015 10:00

16 Talcher I/C-2 NP-5076-A 26-07-2015 22:00 17 Talcher I/C-2 NP-5070-A 17-08-2015 14:45 18 Talcher I/C-2 NP-5076-A 19-08-2015 22:15

19 400kV Mahboobnagar line RTPS NP-5503-A 07-09-2015 14:45 to

15:15

20 Kaiga GT-4 NP-6184-A

15-09-2015 14:45

21 Kochi 400/220kV ICT-2 NP-6172-A 19-09-2015 08:45

22 Kaiga GT-4 NP-6184-A 20-09-2015 17:45

23 Kochi 400/220kV ICT-2 NP-5669-A 26-01-2016 13:45 24 Kochi 400/220kV ICT-2 NP-5669-A 26-01-2016 17:45 25 Kochi 400/220kV ICT-2 NP-5669-A 30-01-2016 15:45



SRLDC presented the list of cases of over recording in the L&T SEMs.

SRLDC expressed concern that such instances are on the rise.

SRLDC requested Meter (SEM) owner may take up the issue with the manufacturer and arrange for resolution of the same.

The forum requested the owner of the SEM to take up the issue with manufacturer and arrange for remedial measures such as upgrading the software of DCD and PC.

SRLDC presented the Sample Graphs indicating over-recording.

Manufacturer informed that the problem is due to use of Vincom.

Wherever VinCom version is loaded in DCD, it s to be replaced with VinPlus in DCD as well as PC.

Forum requested PGCIL to replace the software in all sites.

7. Time drift Statements


SRLDC informed that Significant improvement was observed in AP and Telangana whereas in case of Karnataka more efforts are required.

SRLDC expressed concern that Nodal officers of Karnataka and TN yet to take care of the Time drift statements issue with the site people.

SRLDC listed the locations were Time drift statements are not being received regularly (Annexure-6 ).

All the Nodal officers were agreed to resolve the issue latest by 11.04.2016.

8. Non-compliance of Specifications with respect to Time Correction of SEMs at NLC TS-I Expansion.

SRLDC informed that whenever time correction is carried out, there aa/rr flags were not found in the NPC data of SEMs installed by NLC TPS-I Exp.

The matter was brought to the notice of the Station several times and was also discussed in the 19th Commercial Committee meeting held on 16-07-12.


SRLDC informed the forum that though the station said that they had initiated action, the problem is persisting.

Deliberations in the meeting& Update:

NLC TPS –I Expansion informed that the process of replacement of SEMs has been initiated and the SEM shall be replaced shortly.

NLC TPS –I vide email dt 02.04.16 informed that Time Drift statement of NLC TPS-I Expn (Annexure –7)

9. Intimation regarding discrepancies in the data recorded.

Deliberations in the meeting :

SRLDC informed that they have been reporting certain discrepancies observed in the SEMs to the concerned Nodal officers via Email and the same is being displayed in SRLDC website also.

SRLDC expressed their concern that response from nodal officers is not encouraging.

All the Nodal officers agreed that they would inform the reasons for discrepancies .

10. SEMs connected with Reverse polarity:

SRLDC informed that in the following locations the SEMs installed are being connected with reverse polarity. The connections need to be changed as per convention with prior and post intimation to SRLDC.

1. 230kV Moozhiyar Line at Theni.

2. GT- 1 (Main & Check) at NTPL

3. GT- 2 (Main & Check) at NTPL

4. 400kV Malkaram Line at Hyderabad

5. 132kV side of ICT-1 at Ramagundam

6. 132kV side of ICT-2 at Ramagundam


SRLDC informed that the issue had been resolved .


11. SEM replacements or CT/PT changes:

In the meeting SRLDC informed the following

Any installation /removal/replacement of the SEMs or change in CT/PT ratio shall be informed to SRLDC in advance and confirmed through mail after completion..

Main and Check/Stand by SEMs should not be replaced on the same day. SEMs to be replaced only after ensuring availability of data of fall back SEM.

The data of both old and new replaced SEMs to be collected on the next day and transmitted to SRLDC for proper validation and energy accounting of the week.


SRLDC requested all the utilities to take prior consent of SRLDC for SEM replacement, CT/PT changes in their system to have a better accounting at SRLDC end .

SRLDC also insisted that any work affecting the SEM’s shall be informed in advance to the SRLDC.

Nodal officers agreed for the same.

12. SEM data collection in case of element outage:

SRLDC informed that there were number instances where SEM data could not be collected due to outage of both Main and Standby meter ends of the feeder.


SRLDC informed that there is no improvement in Kayathar end .

TN assured the issue will be resolved latest by 15.04.2016.

13. Replacement of old SML B-type SEMs

SRLDC informed that the (old) SML B-type SEMs which have completed more than 10 years of service, at the following locations need to be replaced with new SEMs.


a. Theni (230kV Moozhiyar Line)

b. Thiruvalam (230kV Chitoor Line)


TANTRANSCO informed that the issue would be resolved latest by 30.04.16 .

14. Missing Subject in the mail while sending SEM data

SRLDC informed that in the subject of the mail, some of the Senders are not mentioning the Names of the station from which SEM data is being sent, causing difficulty in quick identification.

Mentioning the Name of the station and the week name in the Subject will also help in confirming receipt to the sites.


SRLDC informed that the issue is resolved.

15. Clearing of DCD before taking new reading

SRLDC informed that some of the sites are not clearing the DCDs before collecting the current data because of which old data of previous weeks (in some cases even months) is repeating in the current week reading.

This will not only increase the file size but also causing difficulties in processing the data file.

As a result a lot of time is lost in manually deleting.

Some of the locations where this problem is being observed are:

a. Nunna

b. JSW

c. Xeldem


SRLDC informed that this issue had improved to a large extent.

SRLDC requested to keep the additional set of DCDs, cables, cards etc at the stations to avoid unforeseen difficulties.

SRTS-I and SRTS-II agreed for the same.


16. Reporting of problems related to SEMs


SRLDC informed that many of the sites report the problems related to DCD, cables, accessories etc to SRLDC.

SRLDC requested the Nodal officers to coordinate with sites and the Nodal officers of SRTS-I & II for resolving the problem.

Therefore, the sites may be provided with the contact details of Nodal officers for reporting the SEM issues .

Nodal officers assured that all the sites shall be communicated accordingly.

17. Sending Single NPC file


SRLDC informed that many of sites (Annexure -8) are sending Meter-wise NPC files separately. For example, if a particular site contains 10 SEMs, a single encrypted/NPC file containing all the 10 meter data is to be sent to SRLDC.

However, 10 different files for each SEM separately are being received. This requires more handling time for converting/processing the individual files.

All the Nodal officers agreed to instruct the site personnel to send SEM data in a single file (NPC/ Encrypted).

*****

Rajan

Annexure - 1 (1/2)

Rajan

Annexure - 1 (2/2)

22-04-2016

1

22NDND NODAL OFFICERS NODAL OFFICERS MEETING ON MEETING ON SEMSEM DATA DATA COORDINATIONCOORDINATION

IMPORTANT ISSUESIMPORTANT ISSUESUtility Station(s) Issues to be addressed

Andhra Pradesh Nunna Huge Time drift

Tamil Nadu Thiruvelam, Theni Huge time drift. Expedite replacement of SEM.

POWERGRID (SRTS-1) Nellore, Raichur Time drift observed

Karnataka Guttur, Kadra, Kodasalli Non receipt of SEM data

TN Kayathar Non receipt of data and Data format error. Noncollection of SEM data when elements under LC

Siruseri 1. Data of BHAVINI line -1 is not being received2. Data of BHAVINI line -2 is not Non readable dataformat and Data could not be processed

POWERGRID (SRTS-II) Karaikudi Non collection of SEM data when elements under LC

Hosur/Salem No SEM either end of 400kV Hosur –Salem line-2

Mysore No SEMs on 400kV Nelamangala Lines 1&2 atMysore end

Rajan

Annexure -2 (1/13)

22-04-2016

2

SUDDEN JUMP IN REACTIVE REGISTERSUDDEN JUMP IN REACTIVE REGISTER

Sl. no. Element SEM Sl No Manufacturer Date

1 400kV Kayathar line 1 at Karaikudi NP-9635-A Elster 25-02-2015

2 400kV Thiruvalem Bus section 2 NP-7618-A Elster 26-01-2016


4 400kV side of ICT 2 at Kochi NP-6172-A L&T 16-02-2016



DELAY IN RECEIPT OF SEM DATA

AP TELANGANA KARNATAKA TN Goa Powergrid

VTPS 4 Wanaparthy 9 Ambewadi 9 Gummidipoondi 7 Ponda 3 HVDC Talcher 4

N’SagarRC 4 KTPS 4 Guttur 13 Kayatar 5 Xeldem 4 Nellore 9

Mahaboobnagar 5 Kodasalli 14 Raichur 8

Chalakurthy 4

Wadapalli 4

Rajan

Annexure -2 (2/13)

22-04-2016

3

NON-COMPLIANCE OF SEM DATA FORMAT

• SEM data of SML had an issue with date format from 01-01-2016 and the problem has been resolved

• Revised software of SML needs to be circulated to all the sites in the region

• Powergrid may confirm by when the software can be replaced at all sites.

NON RECEIPT OF ENCRYPTED FILES

AP TELANGANA KARNATAKA POWERGRID ISGS

KAKINADA ALAMPUR X ROADS YERANDAHALLI MUNIRABAD NLC REMOTE

KOCHI NLC TS2

Rajan

Annexure -2 (3/13)

22-04-2016

4

NON RECEIPT OF NPC FILES

AP TELANGANA KARNATAKA TN POWERGRID ISGS

KURNOOL MALKARAM BELLARY ALAMATHY ARASUR NTPL

KTPS GUTTUR HOSUR

KADAKOLA 765 RAICHUR

KADRAVIJAYAWADA

(PARTIALLY BEING RECEIVED)

SEDAM GAZUWAKA

OVER RECORDING IN L&T SEMSS No. Element SEM Sl No Date Time

1 Somanahalli ICT-2 (HV) NP-5122-A 02-12-2014 07:45

2 Somanahalli ICT-1(LV) NP-5121-A 02-12-2014 08:15

3 Vizag ICT-1 NP-5367-A 10-02-2015 17:30

4 Vizag ICT-2 NP-5527-A 10-02-2015 18:00

5 Talcher I/C -2 NP-5076-A 20-02-2015 16:30

6 Somanahalli ICT-2 (LV) NP-5123-A 26-02-2015 15:30

7 Kalvinthapattu-ICT-2 (HVSide) NP-5681-A 07-03-2015 10:15

8 Kaiga GT-4 (HV) NP-6184-A 21-03-2015 02:45

9 Talcher I/C -2 NP-5076-A 05-04-2015 13:45

10 Simhadri I/C -2 NP-7203-A 13-04-2015 10:30

12 Kochi ICT-2 (HV Side) NP-6172-A 22-06-2015 09:30

13 Vijayawada Line-1 at VTPS NP-5382-A 29-06-2015 10:30

S No. Element SEM Sl No Date Time

14Udumalpet ICT 3(LV)

NP-5655-A 15-07-2015 18:30

15 Kalavinthapattu ICT-2(HV) NP-5684-A 24-07-2015 10:00

16 Talcher I/C-2 NP-5076-A 26-07-2015 22:00

17 Talcher I/C-2 NP-5070-A 17-08-2015 14:45

18 Talcher I/C-2 NP-5076-A 19-08-2015 22:15

19 Mahaboobnagar line at RTPS NP-5503-A 07-09-2015 14:45 to 15:15

20 Kaiga GT-4 NP-6184-A 15-09-2015 14:45

21 kochi 400/220kV ICT-2 NP-6172-A 19-09-2015 08:45

22 Kaiga GT-4 NP-6184-A 20-09-2015 17:45

23 kochi 400/220kV ICT-2 NP-5669-A 26-01-2016 13:45

24 kochi 400/220kV ICT-2 NP-5669-A 26-01-2016 17:45

25 kochi 400/220kV ICT-2 NP-5669-A 30-01-2016 15:45

Rajan

Annexure -2 (4/13)

22-04-2016

5

OVER RECORDING IN L&T SEMS

• Current Status – Manufacturer informed that the problem is due to use of older version software(Vincom) for which they have discontinued the support.

• PowerGrid may confirm by when the software can be replaced at all sites.

• However though Somanahalli was using VinPlus version, there had been incidences over-recording. PowerGrid may examine and take remedial action

TIME DRIFT STATEMENTS

• Every station has to monitor time drift of the SEM wrt to GPS every week

• Every station has to send time drift statement every first Monday of the month along with weekly SEM data.

• Statements are being received in different formats, All the stations are requested to send time drift statement in the prescribed format as given in the annexure VII

Rajan

Annexure -2 (5/13)

22-04-2016

6

NON RECEIPT OF TIME DRIFT STATEMENTSAP TELANGANA KARNATAKA TN

Ragulapadu Ditchipally Ambewadi Achrapakkam

Sulurpet GAJWEL 400 kV Bellary(Alipur) Alamathy

KSTPS( KOTHAGUDAM) BTPS ARNIWanaparthy S/S Guttur Gummidipundi

Kadakola SP KOIL

Konaje Theni

Raichur SIRUSERI

Sedam Kadalangudi

Kadra STCMS

Kodasally

Yarandahalli

NON RECEIPT OF TIME DRIFT STATEMENTSPONDY GOA POWERGRID

XELDEM Nellore

PONDA Hiriyur

Kozhikode

Munirabad

CGS IPPs TALCHER HVDC-AUX

NTPL JSW Raichur 765kV

NLC Remote SEPL Pondy

Neyveli TS-II Stg. I & II MEPL

BHAVINI

Rajan

Annexure -2 (6/13)

22-04-2016

7

STATUS OF TIME DRIFT IN STATUS OF TIME DRIFT IN SRSRSl.No SEM SL.NO Name of the feeder Time drift

In secondsKadapa

1 NP-5370-A 400KV KDP- CTR 1372 NP-5366-A 220 KV ICT-I 4243 NP-5369-A 400 KV ICT-I 3804 NP-5387-A 400 KV ICT-II 2595 NP-5386-A 220KV ICT-II 378

Gooty1 NP-5373 A 400 kv Kurnool APT 1632 NP-5393 A 400 kV Raichur I 2413 NP-5371 A 400 KV SMANAHALLI 2274 NP-5375 A ICT-1 - 220 kv side 1175 NP-6038 A ICT-2 - 220 kv side 169

765kV Kurnool1 NP 3070A Knl-Gty 5302 NP 3071A ICT-1(400kv Side) 5623 NP 3069A Knl-N'sagar 5294 NP 3074A ICT-2(400kv Side) 4995 NP 3068A Knl-Nannur ckt -01 5986 NP 3067A Knl-Nannur ckt -02 6057 NP 3072A ICT-1(765kv Side) 6938 NP 3073A ICT-2(765kv Side) 670

STATUS OF TIME DRIFT IN STATUS OF TIME DRIFT IN SRSRSl No SEM SL No Name of the Feeder Time drift in Seconds

Kakinada1 NP-7243 132KV Pratapnagar-Yanam 368

Srisailam

1 NP3037A 400 KV SSLM-KURNOOL 660

2NP3038A 400 KV SSLM-

SATTENAPALLI-I 660

3NP3039A 401 KV SSLM-

SATTENAPALLI-II 660

4 NP3035A 220 KV SSLM-DINDI-I 660

5 NP3035A 221 KV SSLM-DINDI-II 600

6 NP3035A 222 KV SSLM-SAGAR 660

BrahmanakotkurNP3019A 220KV Wanaparthy 594

Rajan

Annexure -2 (7/13)

22-04-2016

8

NAMING CONVENTION FOR THE DATA FILE

• Data files both NPC and Encrypted files to be named in the following format

• ddmmXXXX.NPC (OR) ddmmXXXX.DAT

• Where ddmm is the date of the Monday following the week data has been collected.

• XXXX is the station code

• Eg If the data is being collected for the week 06-07-2015 to 12-07-2015, for the station Nelamangala, it shall be named as 1307NLM.npc or 1307NLM.MRI

LIST OF STATIONS, WHERE NAMING CONVENTION IS NOT BEING LIST OF STATIONS, WHERE NAMING CONVENTION IS NOT BEING FOLLOWEDFOLLOWED

AP TELANGANA KARNATAKA TN Goa POWERGRID

Brahmanakotkar N'sagar Raichur Achrapakkam Xeldem Vijayawada

Kakinada Jurala Sedam Kayathar Gooty

Upper seleru Malkaram Kadra TTPS Hiriyur

Narketpalli Guttur Alamathy Pondy

KTPP( kakatheya) Kadakola 765 KURNOOL

Mahaboobnagar765 RAICHUR

Munirabad

Nagarjunasagar

Nellore

Arasur

Sriperumbudur

Rajan

Annexure -2 (8/13)

22-04-2016

9

NON-COMPLIANCE OF SPECIFICATIONS WITH RESPECT TO TIME CORRECTION OF SEMS AT NLC TS-I EXP

• Whenever time correction is carried out, there aa/rr flags were not found in the NPC data of SEMs installed by NLC TPS-I Exp.

• The matter was brought to the notice of the Station several times and was also discussed in the 19th Commercial Committee meeting held on 16-07-12.

• Current Status : The station infirmed that they had initiated action and had sent the sample data format of new meters

• Station may inform by when they can replace the SEMs

INTIMATION REGARDING DISCREPANCIES IN THE DATA RECORDED

• SRLDC has been reporting discrepancies noticed in the SEM readings like under recording, over recording etc. Via email to the concerned Nodal officers and the same is also being uploaded in website

• But reply regarding the reasons is not being received.

• Nodal officers are requested to take up the issue seriously

• Current Status : No improvement at all

Rajan

Annexure -2 (9/13)

22-04-2016

10

SEM REPLACEMENTS OR CT/PT CHANGES

• Any installation /removal/replacement of the SEMs or change in CT/PT ratio shall be informed to SRLDC in advance and confirmed through mail after completion.

• Main and Check/Stand by SEMs should not be replaced on the same day.

• SEMs to be replaced only after ensuring availability of data of fall back SEM.

• The data of both old and new replaced SEMs to be collected on the next day and transmitted to SRLDC for proper validation and energy accounting of the week.

• Current Status – being complied

• Prior consent shall be taken from SRLDC, regarding any works affecting SEM

SEM DATA COLLECTION IN CASE OF ELEMENT OUTAGE

• The number instances where SEM data could not be collected due to outage from both Main and Standby ends of the feeder is on the rise.

• In such circumstances, by extending 63.5V single phase supply to PT terminals through a sources like Variac etc., SEM can be energised and data can be collected.

• Nodal officers may coordinate the same.

• Current Status – No improvement in Kayathar. Other sites are sending after reminder

Rajan

Rajan

Annexure -2 (10/13)

22-04-2016

11

MISSING SUBJECT IN THE MAIL WHILE SENDING SEM DATA

• In the subject of the mail, some of the Senders are not mentioning the Names of the station from which SEM data is being sent.

• Some of the senders are mentioning the name of the other end of the feeder

• This is causing difficulty in identification of the data and Confirming receipt to the sites.

• Stations are requested to mention the name of the station in the subject of the mail

• Current Status – being complied

CLEARING OF DCD BEFORE TAKING NEW READING

• Some of the sites are not clearing the DCDs before collecting the data because of which old data of previous weeks (in some cases even months) is repeating in the current week reading. This will not only increase file size but also cause difficulties in processing the file. As a result a lot of time is lost in manually deleting.

• Some of the locations where this problem is being observed are:

1. Xeldem

2. Kaiga

3. JSW

Rajan

Rajan

Annexure -2 (11/13)

22-04-2016

12

REPORTING OF PROBLEMS RELATED TO SEMS

• Many of the sites report the problems related to DCD, cables, accessories etc. to SRLDC.

• Instead the concerned Nodal officers shall be informed for resolving the problem.

• Therefore, the contact details of Nodal officers are to be circulated to sites for reporting the matter.

• Current Status – needs to be improved

SINGLE NPC/ENCRYPTED FILE

• Many of sites (list enclosed) are sending Meter-wise NPC files separately.

• For example, if a particular site contains 10 SEMs, a single encrypted/NPC file containing all the 10 meter data is to be sent to SRLDC. However, 10 different files for each SEM separately are being received.

• This requires more handling time for converting/processing the individual files. All the constituents are requested to send SEM data in a single file (NPC/ Encrypted)

Rajan

Annexure -2 (12/13)

22-04-2016

13

SINGLE NPC/ENCRYPTED FILES NOT BEING RECEIVED

AP TN POWERGRID Generating StationsKamavarapukota Alamathy Vijayawada Neyveli TPS-I Expansion

Kalpaka Kayathar Hiriyur Neyveli TS-II Stg. I & II

Sp koil Munirabad NLC RemoteThiruvelam inter connector Nagarjunasagar SEPLTTPS Nellore MEPLSV chatram

Siruseri

Rajan

Annexure -2 (13/13)

Annexure-3

APTRANSCO TELANGANA KPTCL KSEB TANTRANSCO PONDY GOA POWERGRID NLC NTPC NPC IPPGUTTUR VIJAYAWDA

KODASALLY KARAIKUDIKADRA

KADAKOLAMALKARAM AMBEWADI STCMS

BTPSKADRA

KODASALLYGAJWEL BTPS NCTPS KARAIKUDI NLC RemoteGADWAL GUTTUR STCMS

WANAPARTHY SEDAM SIRUSERIKADRA

BRAHMANAKOTHKUR N'SAGAR NELAMANGALA STCMS PONDA NELLORE PS NLC RemoteGADWAL RTPS MUNIRABAD

SEDAM RAICHUR 765kVKADRA TALCHER Aux

KODSALLI VIJAYAWADAKALPAKA WANAPARTHY KADRA NELLORE

RTPS RAICHURBTPS

KTPS KADRA NELLOREWANAPARTHY KODASALLY ARASUR

N'SAGAR GUTTURNELAMANGALA

SEDAMN'SAGAR RC N'SAGAR AMBEWADI MANJESWAR ALAMATHY HIRIYUR

CHITTOR NARKETPALLY Kadra THIRIVELAM 765kV RAICHURGUTTUR HVDC TALCHER

SEDAM NELLORE

TUTICORIN PSKTPP HOODY ALAMATHY RAICHUR

NARKETPALLY Kadra GUMMIDIPOONDIKODADA

WANAPARTHY

MAHABOOBNAGAR

UPPER SELER KTPP Yarendahalli NELLORE

ALAMPUR X ROADS Kadra NELLORE PS

Konaje 765kV RAICHUR

HVDC TALCHER

KARAIKUDI

N'SAGAR RC WANAPARTHY GUTTUR THIRUVELAM

KODASALLY NELLORE

KADRA NELLORE PS

RTPS HVDC TALCHER

BELLARY

MAMIDIPALLY GUTTUR ALAMATHY NELLORE

NON RECEIPT OF SEM DATA BY 12:00 Hrs of TUESDAY for the period from to Sep 2015 to Jan 2016Week

010216-070216

250116-310116

211215-271215

150216-210216

080216-140216

180116-240116

110116-170116

040116-100116

281215-030116

Rajan

Annexure - 3 (1/3)

Annexure-3

APTRANSCO TELANGANA KPTCL KSEB TANTRANSCO PONDY GOA POWERGRID NLC NTPC NPC IPP


KTPS N'SAGAR

TANDUR HVDC TALCHER

ALAMPUR X ROADS TUTICORIN PS

JURALA GUTTUR MOOLAMOTTOM NCTPS HYDERABAD

N'SAGAR KODASALLY MOOZHIYAR ALAMATHY

CHALAKURTHY KADRA KADALANGUDI

WANAPARTHY STCMS

RAMAPURAM SIRUSERI

SEETHAPURAM KAYATAR

WADAPALLI GUMMIDPOONDI

SP KOIL

VTPS DINDI GUTTUR NCTPS KADAPA

GADWAL KODASALLY ALAMATHY MADHUGIRI

JURALA KADRA STCMS GAJUWAKA

N'SAGAR SEDAM RAICHUR 765kV

CHALAKURTHY KONAJE VIJAYAWADA

WANAPARTHY

MALKARAM GUTTUR KAYATHAR KADAPA

VTPS KODASALLY ALAMATHY MADHUGIRI

KADRA

RTPS

WADAPALLI KODASALLY ALAMATHY PONDA NELLORE

KADRA SP KOIL

KAYATAR

GUMMIDIPOONDI

VTPS MALKARAM AMBEWADI ALAMATHY KARAIKUDI KAIGA SEL

N'SAGAR RC WADAPALLI GUTTUR SP KOIL MEPL

WANPARTHY NELAMANGALA ACHRAPAKAM

KODASALLY KAYATAR

KADRA

CHITTOR MAHABOOBNAGAR AMBEWADI ALAMATHY ARASUR NLC 2 EXP JSW

WARNAPARTHY YARENDAHALLI SP KOIL NELLORE

GAJWEL KAYATAR 765 KURNOOL

KODADA KOZHIKODE

VTPS TANDUR GUTTUR EDAMAN NCTPS GAZUWAKA

N' SAGAR RC SP KOIL 765kV RAICHUR

KAMAVARPUKOTA KADRA SIRUSERI XELDEM WARANGAL

KODADA KODASALLI GUMMIDPOONDI

141215-201215

021115-081115

071215-131215

301115-061215

231115-291115

161115-221115

091115-151115

261015-011115

Rajan

Annexure - 3 (2/3)

Annexure-3

APTRANSCO TELANGANA KPTCL KSEB TANTRANSCO PONDY GOA POWERGRID NLC NTPC NPC IPP


GUTTUR

SEDAM

AMBEWADI

BALLARY

KAMAVARPUKOTA MAHABOOBNAGAR KADRA MOOZHIYAR GUMMIDIPOONDI XELDEM NAGAPATTINAM

KUSUMANCHI KODASALLI SP KOIL

SEDAM EDAMAN GUMMIDIPOONDI

KADRA SP KOIL

HOSUR

CHALAKURTHY NELAMANGALA PARASALA GUMMIDIPOONDI PONDA NAGAPATTINAM

MAHABOOBNAGAR GUTTUR XELDEM

N'SAGAR AMBEWADI TTPS

KODASALLI

KADRA

N'SAGAR AMBEWADI XELDEM RAICHUR

WANAPARTHY

RAGULAPADU KADRA GUMMIDIPOONDI MUNIRABAD JSW

SEDAM SP KOIL

KCP CEMENTS DINDI KADRA CUDDAPAH NTLGOOTY-RS KTPS RAICHUR GOOTY

MAHABOOBNAGAR KODASALLI N'SAGARGADWAL

KTPPCHALAKURTHY

070915-140915

191015-251015

121015-181015

051015-111015

280915-041015

210915-270915

140915-210915

Rajan

Annexure - 3 (3/3)

List of Locations, where naming convention is not being followed

Andhra Pradesh:

S.No Location Station Code 1 Kakinada KKD 2 Brahmanakotkar BRH 3 Upper seleru UPS

Telangana:

S.No Location Station Code 1 N'sagar NSD 2 Jurala JRL 3 Malkaram MLKM 4 Narketpalli NKT 5 KTPP( kakatheya) KTPP 6 Mahaboobnagar MBNR

Karnataka:

S.No Location Station Code 1 Raichur RTPS 2 Sedam SDM 3 Kadra KDR 4 Guttur DVG, DVG1 5 Kadakola KDKL

Tamil Nadu:

S.No Location Station Code

1 Achrapakkam ACPK

2 Alamathy ALM,

ALM1 3 Kayathar KYR 4 Ttps TTPS 5 Udumalpet-220 IDUK

Rajan

Annexure - 4 (1/2)

POWERGRID:

S.No Location Station Code 1 Arasur ARS,ARS1 2 Vijayawada VJA,VJA1 3 Sriperumbudur MDS 4 Gooty GTY 5 Hiriyur HYR,HYR1 6 Pondy PON 7 765 KURNOOL KRN1 8 765 RAICHUR RCT,RCT1 9 Munirabad MBD

10 Nagarjunasagar NSR 11 Nellore NLR 12 Nellore PS NPS

Rajan

Annexure - 4 (2/2)

Annexure 5

1. NPC files not being received from the following stations

2. Encrypted files(MRI/DAT/Rm3) not being received from the following stations

AP KARNATAKA POWERGRID TELANGANA ISGS

KAKINADA YERANDAHALLI KOCHI ALAMPUR X ROADS

NLC REMOTE

MUNIRABAD NLC TS2

AP KARNATAKA TN POWERGRID

KURNOOL BELLARY(ALIPUR) ALAMATHY ARASUR

GUTTUR METTUR GAZUWAKA

KADAKOLA NCTPS 765 RAICHUR

KADRA

VIJAYAWADA (ONLY PARTIALLY BEING RECEIVED)

TELANGANA

HOSUR

MALKARAM

KTPS

ISGS

NTPL

Rajan

Annexure -5 (1/1)

Annexure - 6 (1/1)

AP TELANGANA KARNATAKA TN POWERGRID IPPs CGS GOARagulapadu Ditchipally Ambewadi Achrapakkam Nellore JSW NTPL XELDEM

Sulurpet GAJWEL 400 kV Bellary(Alipur) Alamathy Hiriyur SEPL NLC Remote PONDAKSTPS( KOTHAGUDAM) BTPS ARNI Kozhikode MEPL Neyveli TS-II Stg. I & II

Wanaparthy S/S Guttur Gummidipundi Munirabad BHAVINIKadakola SP KOIL TALCHER HVDC-AUX

Konaje Theni Raichur 765kVRaichur SIRUSERI PondySedam KadalangudiKadra STCMS

KodasallyYarandahalli

Non Receipt of Time Drift Statements

Rajan

Annexure - 7 (1/1)

Single NPC files not being received

1. POWERGRID 3. Tamil Nadu

2. Generating Stations 4. Andhra Pradesh

S.No Location 1 Vijayawada 2 Hiriyur 3 Munirabad 4 Nagarjunasagar 5 Nellore 6 Nellore PS

S.No Location

1 Alamathy 2 Kayathar 3 Spkoil 4 Thiruvelam inter connector 5 TTPS 6 Svchatram 7 Siruseri

S.No Location

1 Kamavarapukota 2 Kalpaka

S.No Location

1 Neyveli TPS-I Expansion 2 Neyveli TS-II Stg. I & II 3 NLC Remote 4 SEPL 5 MEPL 6 7

Rajan

Annexure - 8 (1/1)

Documents

March 2016 Page 1 - Southern Regional Power Committee ... · reading of NP -9618-A Karaikudi ... Committee requested the meter owners to specify the modbus ... of Nodal Officers -29th