Standard Formats for Substation Operation

STANDARD FORMATS FOR SUBSTATION OPERATION

DOC. NO.: D- 3- 13-XX- 01- 03 Revision 3 May 2009

CORPORATE OPERATION SERVICES POWER GRID CORPORATION OF INDIA LTD

(A Government of India Enterprise) GURGAON

Doc. No.:D-3-13-XX-01-03

POWER GRID CORPORATION OF INDIA LTD

_____________________________ Standard Formats for Substation Operation

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ABOUT THE FORMATS Formats for use in recording and reporting of data in substation operation are being standardized for uniform use at all substations. These formats have been categorized in three ways, formats for log sheets, formats for monthly registers and formats for loose forms. Code Scheme ABCDEF

A Code for Region BC Code for Substation D Code for type of Format/Section in Monthly System Operation Report EF Code for Form Number for a specific type of format/standard Format

Number in the specific section of System Operation Report.

Codes for Regions (A) Northern Region – I - 1 Western Region - I - 2 Southern Region – I - 3 Eastern Region - I - 4 North Eastern Region - 5 Northern Region – II - 6 Southern Region-II - 7 Eastern Region – II - 8 Western Region – II - 9 Codes for substations in Northern Region – I (BC) Kanpur 01 Auraiya 19 Rae Bareilly 43 Agra 02 V’chal BtB HVDC 20 Maharanibagh 44 Ballabgarh 03 Dausa 24 Sitargunj 45 Jaipur/Bassi 04 Bawana 26 Kota 46 Mandola 05 Panipat 27 Pithoragarh 47 Anpara 06 RAPP B 28 Kankaroli 48 Lucknow(UPPCL) 07 Chittorgarh 29 Mainpuri 71 Muradabad 08 Unchahar 30 Tehri Pooling Point 72 Muradnagar 09 Faridabad GPP 31 Gurgaon 73 Panki 10 Samayapur(BBMB) 32 Sikar 74 Sikandara 11 Palla 33 Neemrana 75 Heerapura 12 Meerut 34 Kotputli 76 Bhilwara 13 Allahabad 35 Manesar 77 Bareilly (UPPCL) 14 Bhiwadi 37 Roorkee 78 Singrauli STPP 15 Lucknow 39 Bhinmal 79 Rihand STPP 16 Gorakhpur 40 Koteshwar 80 Dadri HVDC 17 Ballia 41 Merta (RRVPNL) 81 Anta 18 Bareilly 42

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Codes for Substations in Western Region -I (BC) New Mumbai 01 Mapusa 29 Bilaspur 78 Parlie 02 Boisar 31 Durg 79 Bhadrawati 03 Seoni 34 Kohlapur 80 Chandrapur(MSTC) 06 Bhatapara 35 Aurangabad 81 Bhilai 07 Wardha 36 Akola 82 Koradi 08 Pune 40 Sipat 83 Korba STPP 13 Solapur 42 Korba (W) 14 Nagpur 70 Padghe 23 Jalgaon 76 Raipur 28 Raigarh 77 Codes for Substations in Western Region - II (BC) Jabalpur 01 Vav 17 Vapi 33 Itarsi 02 Navsari 18 Bina 37 Damoh 03 VSTPP 19 Gwalior 38 Indore 04 Dehgam 20 Rajgarh 39 Asoj 05 Itchapur 21 Nagda 41 Satpura 09 Jhanor (Gandhar) 22 Kakrapar 10 GTEC 24 Haldarwa (Bharuch) 11 Dhule 25 Vapi (GEB) 12 Satna 26 Kawas 15 Bina (MPEB) 27 Valthan 16 Khandwa 32 Codes for Substations in Southern Region-I (BC) Hyderabad 01 Gajuwaka 09 Neelamangala 22 Nagarjunasagar 02 Nellore 10 Chittoor 23 Cuddapah 03 Kurnool 12 Gajuwel 24 Mahboobnagar 04 Almathi 13 Vemagiri 25 Munirabad 05 Warangal 14 Srisailam 26 Gooty 06 Ramagundam STPP 17 Hyderabad

(APTRANSCO) 27

Khammam 07 Visakhapatnam BtB HVDC

19

Vijayawada 08 Raichur 21

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Codes for Substations in Southern Region-II (BC) Hosur 01 Neyvelli PS 16 Hassan 29 Trivandrum 02 Pugalur 17 Davangiri 71 Hiryur 03 Kayamkulam GIS 18 Pallom 72 Bangalore 04 Arasur 19 Palakkad 73 Mysore 05 Pondy 20 Yalabanka 74 Narendra 06 Thirunelveli 21 Bididi 75 Kalivanthapattu 09 Edamon 22 Bahoor (PED) 76 Sriperumbadur 10 Kaiga 23 Hoody (KPTCL) 77 Salem 11 Sirsi 24 Kudamkulam APS

(NPC) 78

Udumalpet 12 Kolar 25 Kundra (KSEB) 79 Trichur 13 Kochi 26 Nelamangala

(KPTCL) 80

Madurai 14 Kozhikode 27 Talaguppa (KPTCL)

81

Tiruchirapalli 15 Karaikudi 28 Villianur (PED) 82 Codes for Substations in Eastern Region –I (BC) Muzaffarpur 01 Sasaram 26 Dehri 83 Biharshariff 02 Ara 27 Karmnasa 84 Jamshedpur 03 Sarnath 29 Ranchi 04 Patna 70 Purnea 11 Varnasi 79 Kahalgaon STPP 16 Sasaram 765KV 80 Sasaram BtB HVDC

23 Ranchi 765KV 81

New Purnea 24 Gaya 765KV 82 Codes for Substations in Eastern Region – II (BC) Durgapur 01 Farakka STPP 15 Gangtok 83 Subhashgram 02 Jeerat 17 Upper Indravati HEP 84 Maithon 04 Talcher STPP 18 Kishanganj HVDC 85 Rourkela 05 Rangit HEP 19 Jeypore 06 Rammam 20 Indravati 07 Melli 21 Rengali 08 Budhipadar 22 Malda 09 New Siliguri 25 Dalkhola 10 Talcher HVDC 28 Siliguri 12 Meramundali 30 Birpara 13 Baripada 31 Chukha HEP 14 Rairakhol 77

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Codes of Substations in North Eastern Region (BC) Haflong 01 Zembabwak 11 Agartala 21 Jiribam 02 BTPS 12 Samaguri 22 Aizawl 03 Khandong 13 Tezpur 23 Kumarghat 04 Khiliehriet 14 Doyang HEP 24 Nirjuli(Itanagar) 05 Salakati 15 Ranganadi HEP 25 Misa 06 Balipara 16 Geyegphug 26 Kopili 07 Bongaigaon 17 Ziro 27 Mariani 08 Imphal 18 Badarpur 28 Yurembam 09 Gohpur 19 Dimapur 10 Kathalguri 20 Codes of Substations in Northern Region II (BC) Malerkotla 01 Pong 16 Fatehabad 32 Sarna 02 Hiranagar 17 Ludhiana 33 Udhampur 03 Jessore 18 New Wanpoh 34 Jammu 04 Nallagarh 19 Panchkula 35 Moga 05 Abdullapur 20 Sonepat 36 Hissar 06 Dulhasti HEP 22 Chamba 37 Kishenpur 07 NJHEP 23 Bhiwani 765KV 38 Wagoora 08 Jallandhar 24 Banala 39 Bhiwani 09 Hamirpur 25 Ramban 40 Salal HEP 10 Patiala 26 Chamera HEP 11 Manimajra 27 Uri HEP 12 Amritsar 28 Bairasieul HEP 13 Kaithal 29 Dasuya 14 Panipat 30 Pampore

15 Bahadurgarh 31

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Codes for various Formats (D) Log sheets - 1 Monthly Registers - 2 Loose Formats - 3 Sample formats for the above are enclosed in this report For e.g. the Daily Log-sheet for EHV Transformers for Mandola S/S of NR-I shall carry a Form No of 105102. Similarly the register for Monthly Record of Energy meter readings at Bangalore S/S of Southern Region-II shall carry a Form No of 704201. Similarly, outage details in North-Eastern Region shall carry a Form No. of 500305. Sample Formats are enclosed in this report. Note: 1. For Automated/ Remote Operated Substations and wherever automatic data logging function

have been put in place, regions to ensure that operation datas are logged as per the standard formats only.

2. If new Sub-Stations are added in any Region, Regions to assign the next serial number and the same to be intimated to ISO Co-ordinator of CC/OS for records.

3. ER-II & WR-II have been assigned codes for Region (A) as 8&9 respectively. Sub-Station Numbers (BC) for the existing Sub-Stations to be retained and left out numbers to be assigned to new additions of Sub-Stations. The same procedure is to be followed by ER-I & WR-I also for the Sub-Stations which are transferred to ER-II & WR-II respectively.

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STANDARD FORMATS FOR DAILY LOG SHEETS

+101 Daily Log sheet for EHV lines: The block containing readings for each line are to be repeated for each line in the substation and are to be printed on the same sheet of paper. Readings for voltages and frequency of various buses are also to be recorded on the same sheet. The shift personnel are to sign the log sheet in the block provided at bottom right corner of the sheet.

+102 Daily Log sheet for EHV Transformers: The block containing readings for ICT are to be repeated for each ICT in the substation and are to be printed on the same sheet of paper. Readings for Bus/Tertiary Reactor MVAR, are also to be recorded on the same sheet. The shift personnel are to sign the log sheet in the block provided at bottom right corner of the sheet.

+103 Daily Log sheet for Transformer/Reactor Temperature, oil level & status of cooling system: The blocks for ICTs and Reactors are to be repeated for each ICT/Reactor and printed on the same sheet of paper. The shift personnel are to sign the log sheet in the block provided at bottom right corner of the sheet.

+105 Daily Log sheet for AC LT system: This format is to be filled by the shift personnel once in a shift. The shift personnel are to sign the log sheet in the block provided at bottom right corner of the sheet.

+106 Daily Log sheet for battery chargers: Readings are to be recorded once in a shift. The shift personnel are to sign the log sheet in the block provided at bottom right corner of the sheet.

+107 Daily Log Sheet for Diesel Generator set: Hourly readings after starting are to be recorded. Instructions given in the form of note at the end are to be printed on each sheet. The shift personnel are to sign the log sheet in the block provided at bottom right corner of the sheet.

+108 Daily Log Sheet for Diesel Consumption of D.G. Set: Readings are to be recorded once in a shift. The shift personnel are to sign the log sheet in the block provided at bottom right corner of the sheet.

+110 Daily Log Sheet for Fire Fighting System: Readings of Water levels, pressure at various points in Fire Fighting System, Fuel level, reading of Battery system of Diesel Engine are to be taken once in each shift. The shift personnel are to sign the log sheets in the block provided at bottom right corner of the sheet.

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Form No: ABC 101 Region: Substation:

Daily Log Sheet for EHV Lines

Day

Time

Line……………**

Weather Condition *

……….kV *** Bus No……

Remarks

Hrs MW MVAR Line Reactor MVAR

FSC/TCSC IN/OUT of

Service

kV Hz

0100 : :

1200 : :

2400 * Weather Conditions: Dry/ Cloudy/ Stormy/ Rainy/ Windy – To be recorded once in a shift.

Shift Tech./ JE Shift I/C

** This format block is to be repeated for each line on the same sheet. C *** This format block is to be repeated for each Bus on the same sheet. A Note: 1. Column spacing to be adjusted as per requirement. Line Reactor & FSC/TCSC B IN/OUT of service column to be deleted wherever not applicable. C

Date Month Year

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2. Negative sign denotes IMPORT and Positive sign denotes EXPORT. Form No: ABC 102 Region: Substation:

Daily Log Sheet for EHV Transformers

Day

ICT No………* Time HV Current HV Power Tap Position IV side Volts **

Bus/ Tertiary reactor ***

Hrs R Y B MW MVAR No kV MVAR

Remarks

0400 0800 1200 1600 2000 2400

Readings to be taken once in four hours Shift Tech./ JE Shift I/C * These format blocks to be repeated for each ICT on the same sheet C ** Where 220 kV bus voltage is available, IV side voltage is not required. A ***Bus/Tertiary Reactor column to be deleted wherever not applicable. B Note: 1. Column spacing to be adjusted as per requirement. C 2. Negative sign denotes IMPORT and Positive sigh denotes EXPORT

Date Month Year

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Daily Log Sheet for Transformer/ Reactor Temperature, Oil level & Status of Cooling System

Day

………Line Reactor* ICT No………* Bus Reactor * Time WDG. Temp

Oil Temp

NGR Oil Temp

MOG Level

Bushing oil level

HV/IV/LV Winding Temp.

Oil Temp.

No.of Cooling fans running

No.of pumps running

MOG level

Bushing Oil level

WDGTemp Oil Temp MOG level

Bushing Oil level

Ambient Temp.

Hrs. °C °C °C °C °C Nos. Nos. °C °C °C 0800 1600 2300

Readings to be taken once in a shift Shift Tech./ JE Shift I/C * These format blocks to be repeated for each ICT/ Reactor on the same sheet A B Note: Column spacing to be adjusted as per requirement. C

Date Month Year

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Daily Log Sheet for AC LT System

`

Day

Main Switch Board 415V AC Distribution Board LT Transformer AC & Ventilation

DG Set Energy in KWH Time

Main-I Voltage in Volts

Main-II Voltage in Volts

Bus-I Voltage In Volts

Bus-II Voltage In Volts Voltage

in volts Frequency

Power DG Runnin

g

TR-I Current in Amp

TR-II Current in Amp TR-I TR-II Terti

ary

Bus-I Voltage

In Volts

Bus-II Voltage

In Volts

Hrs RY/YB/BR RY/YB/BR RY/YB/BR RY/YB/BR RY/YB/BR Hz kW Hrs. R/Y/B R/Y/B RY/YB/BR RY/YB/BR

0800 1600 2300

Readings to be taken once in a shift Shift Tech./ JE Shift I/C A Note: Column spacing to be adjusted/ modified to suit scheme adopted in the Sub-Station. B C

Date Month Year

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Daily Log Sheet for Battery Chargers

Day

220 V Battery Charger-I 220 V Battery Charger-II 50 V Battery Charger-I 50 V Battery Charger-II Time Position Output

Voltage Load Position Output



Voltage Load

Hrs. V A V A V A V A 0800 1600 2300

Readings to be taken once in a shift Shift Tech./ JE Shift I/C charger failure Annunciation to be ensured in Control Room A B Note: Column spacing to be adjusted/ modified as per site requirement. C

Date Month Year

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Daily Log Sheet for Diesel Generator Set

Day

Particulars DG set-I DG Set-II I. Checks before starting: 1. Lubricating System 1.1 Leakage 1.2 Engine Oil Level 2. Cooling System 2.1 Leakage 2.2 Cooling Level 3. Air Intake 3.1 Leakage 4. Fuel Cycle 4.1 Leakage 4.2 Fuel Level 5. Battery Charger 5.1 Battery Voltage 5.2 Charger on trickle/ Boost 5.3 Charger Current II. Time of idle running of DG Running hour meter reading III. Hourly Readings after Starting

DG Set-I DG Set-II Time

Volt

Current

Freq

Load

Oil Temp

Water Temp

Oil Pr.

Engine Vibration

Volt

Current

Freq Load Oil Temp

Water Temp

Oil Pr.

Engine Vibration

Shift Tech./ JE Shift I/C A . B C

Note: 1. Run Engine idle for 3 to 5 minutes before shutting it down.

2. Idle running of each DG set on daily basis at 1030 Hrs for 10 mts. However, if DG set had run due to emergency during last 24 Hrs, idle running is not to be done.

Date Month Year

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Daily Log Sheet for Diesel Consumption for D.G. Set

Day

DG Set

ADDITION OF HSD

Energy meter reading

Enegry Gen. in KWH

Time

OPENING BALANCE (LITRES) IN LITRES

CLOSING BALANCE IN LITRES

CONSUMPTION IN LITRES

RUNNING HOURS

Initial Final

REMARKS

0800 1600 2300

DG-I DG-II DG-I DG-II DG-I DG-II

SHIFT Tech./JE Shift I/C A B C

Reading to be taken once in a shift

Date Month Year

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Daily Log Sheet for Fire Fighting System

Day

Sl.No. Description A

Shift B

Shift C

Shift 1 Water Level (In Meter)

a. Storage Tank-1 b. Storage Tank-2 c. HP Tank

2 Hydrant Line Pressure

3 HP Tank Pressure

4 Emulsifire Pressure

5 Deluge Valve Pressure Main Line/ Detection Line

a. Reactor b. ICTs

6 Diesel Engine 6.1 Fuel Level 6.2 Battery Voltage

Charger on trickle/ Boost Charger Current

Shift Tech./ JE Shift I/C A . B C

Date Month Year

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STANDARD FORMATS FOR MONTHLY REGISTERS

+201 Monthly Record for Energy Meter Readings: The sample table given in the format is for a typical Line/ICT and the same format is to be repeated for each individual Line/ICT. Energy Meter readings taken for various lines/ICTs at 0000 hrs. is to be recorded.

+203 Daily Record of PLCC Counter Readings: These readings are to be taken in each shift and always after each tripping. Any increase in counter reading is to be analysed by T&C Engineer and comments recorded in Remarks column.

+204 Record of Issued PTW /SFT: Particulars of each PTW /SFT are to be recorded.

+205 Record of Outages: Outage of every line/ICT/Reactor to be recorded in this format, Category of tripping may be indicated as given in Annexure-I. If there is delay of more than 10 minutes between time of clearance for charging and time of charging, reasons are to be recorded.

+206 Monthly Record of Circuit Breaker parameters: CB counter and SF6 Gas Pressure Readings of each line/ICT/Bus Reactor Breaker for each phase is to be recorded at 1000hrs in the prescribed format, which has to be repeated for each line/ICT/Bus Reactor.

+207 & 208

Monthly Record of 220V/50V Battery Sets: Separate Registers bearing No. +207 for 220V Battery set and +208 for 50V Battery set are to be maintained. Separate sheet required for each battery bank. Readings are to be taken at 1000 hrs. One pilot cell to be monitored daily.

+209 Defects Record: Any defect observed by operation staff or maintenance staff to be recorded here. It is to be linked with PTW/SFT record.

+210 Record of Message exchanged: All type of messages exchanged between Substation operation staff and other Substations of POWERGRID or other agencies related with operation and maintenance matters are to be recorded. Sub-Station I/C is to counter sign the record of message exchanged.

+211 Daily Log Book: To be maintained by operation shift in-charge and to be properly handed over to next shift giving highlights of events, details of shut down or any precautions to be observed. Sub-Station I/C is to counter sign the log book every day.

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Form No. ABC 201 Region……… Substation……………

Monthly Record of Energy Meter Readings Month………… Name of Line/ ICT……………

MVARH Date MWH

(Cumm.) Multipling Factor

Net MWH in last 24 Hrs

High Low Signature

01 02 03 04 . . . . . . . . . 29 30 31 Net energy flow for the month ………….. MU Note: Readings to be taken daily at 00.00 Hrs.

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Daily Record of PLCC counter Readings Month………… Name of Line………….

Date

Shift Channel-I Channel-II

Code-I Code-II Code-III Code-IV Code-I Code-II Code-III Code-IV Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx Tx Rx

Remarks

Note: 1. Readings to be taken once in every shift and always after every tripping. Shift Tech./ JE Shift I/C A 2. Column to be adjusted as per site requirement. B C

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Record of Issued PTW/ SFT Month…………

Requested

on

Issue of PTW/ SFT Cancellation of PTW/ SFT

Sl. No

Name of the feeder

PTW/ SFT No. Date Time

Name of

Equip.

Details of

Isolation Date Time Issued by

Received by

Date Time Returned by

Cancelled by

Remarks

Note: Column spacing to be adjusted as per site requirement.

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Record of outages Month………… Name of Line/ ICT/ Bus Reactor ……………

Tripping

Clearance for Charging

Actual Charging

Duration of outage

Sl.No.

Date Time Date Time Date Time Hrs. Mts.

Category of tripping

Brief Analysis/ Type of fault

Signature of Engineer /JE

Note: 1. Category of tripping to be indicated as per Annexure-I

2. If there is delay of more than 10 minutes between time of clearance for charging and actual time of charging, reason to be recorded

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Monthly Record of Circuit Breaker Parameters Month…………

Date Line/ICT/ Bus reactor.. ……….. Compressor

/ Pump Oil/Air Sign of Sign. Of Maint.

R-Phase Y-phase B-phase Running Hrs.

Pressure Tech/JE Engr.

Counter Reading

SF6 Pressure

Spring Charge Status

Counter Reading

SF6 Pressure


Counter Reading

SF6 Pressure


01 02 03 04 05 . . . . 29 30 31 Note: Readings to be taken daily at 1000 Hrs.

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Form No. ABC 207 (For 220V Battery sets) Form No. ABC 208 (For 50V Battery sets) Region……….. Substation………………….

Monthly Record of 220V/50V Battery Sets

Month…………………..

……….Volt Battery Bank…….. Date

Total Battery Voltage

Sp. Gravity

Volts Temp. Sp. Gravity

Volts Temp.

Signature of Tech./ JE

Pilot Cell No…….. Pilot Cell No…….. 01 02 03 04 05 06 Pilot Cell No…….. Pilot Cell No…….. 07 08 . . . . . Pilot Cell No…….. Pilot Cell No…….. . . . . 29 30 31 Note: 1. Separate sheets for each battery set to be maintained. 2. Two pilot cells to be monitored every day on each battery set. 3. Readings to be taken daily at 1000 Hrs.

4. Pilot cell to be changed after every 6 days.

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Defects Record Month…………

Observed by Rectified by

Date Defects Observed

Name Disgn. Sign.

& Date

Name Desgn. Sign.

& Date

Details of rectifications carried out

PTW/ SFT ref. No.

Remarks

Sign. Of S/S Incharge

Note: Column spacing to be adjusted as per site requirement.

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Record of Message Exchanged

Message No: Message No: From: To: Date: Date: Time: Time: Sent By: Received By:

Signature of the S/S In-charge: ……………………….

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Daily Log Book

Date Time Particulars of events

Note: 1. Daily Log Book to be countersigned by S/S In-charge every day.

2. Shift Handing over/ Taking over to be recorded in every shift by shift in-charge 3. All Indications , annunciation, Relay flag details ,Switching operation, Tripping details, Issue & Return of PTW/SFT, Auxiliary Supply status and other events/other defects observed during the shift to be recorded chronologically. 4. Name & Designation of Employees in each shift to be recorded

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STANDARD FORMAT FOR LOOSE FORMATS

+301 Permit to Work: This format is to be used for works requiring shut downs for permit to work.

+302 Line/ICT Tripping Report: These are to be filled by Shift In-charge after every Line/ICT Tripping. Relay flags as per format (+303) and PLCC. Counter increment readings as per format (+304) are also to be filled up. Copies of the relevant portions of charts of Voltage. Frequency, Disturbance Recorders and Event Loggers to be enclosed along with the tripping report.

+303 Relay Flag Details after Line/ ICT/Bus Reactor tripping.

+304 (a) PLCC Counter Readings after Line/ICT tripping.

304 (b) PLCC counter reading on the remote end after Line tripping.

+305 Outage details: This format to be used to report the outages attributed to various categories and to be maintained by the Regional Office.

+310 Sanction for Test: This format is to be used for works requiring isolation/ disconnection of the equipment for carrying out test (s).

Annexure-I Standard list of element outage categories.

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Form No.. ABC 301 In person/Code through Telephone REGION………….. SUBSTATION ………….

PERMIT TO WORK Permit No…………… I. REQUEST: 1. Work area : 2. Work to be done: 3. Period of PTW : (From)………………….(To)………………… 4. Details of isolation required : Precautions taken to achieve Safety :

5. Name and number of persons to execute work : PTW PTW (Requested by) (Approved by) Signature : Name : Designation : Date & Time :

II. ISSUE :

1. Sequence of isolation : i) ii) iii) 2. PTW allowed. (From)………………… (To)………………. 3. Further precautions to be taken to achieve Safety :

4. Details of Safety keys used : 5. Work area is isolated and it is safe to work on :

Signature : Name : Designation (Shift Engineer) : Date : Time : Note : 1. PTW request to be approved by Substation Incharge

2. PTW to be issued to POWERGRID Executive/Authorised representative of licencee only.

3. Earthing to be done at the place of work. 4. Colour codification : Ist, IInd & IIIrd copy of PTW will be light Pink, white &

light Blue respectively.

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III. RECEIPT:

I hereby declare that I have inspected and have satisfied myself that such equipment has been switched off and isolated, where the work is to be carried out. I also accept responsibility for carrying out work on equipment detailed on this permit and that no attempt will be made by me or by any man under my control, to carry out work on any other equipment. Signature : Name : Designation : Date : Time :

RETURN OF PERMIT TO WORK

1. DETAILS OF WORK DONE :

2. RESTRICTIONS, IF ANY, ON THE EQUIPMENT BEING RETURNED TO SERVICE :

3. CLEARANCE

I hereby declare that all men and material have been withdrawn and warned that it is no longer safe to work on the equipment specified in this permit and all tools and additional earths are clear and equipment is ready for charging. Signature : Name : Designation : Date : Time :

IV. CANCELLATION OF PERMIT TO WORK :

1. PTW cancelled and entry made in PTW/SFT register on Page No……. 2. SEQUENCE OF NORMALIZATION :

i) ii) iii) iv) v) Signature : Name : Designation : Date : Time :

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Form No. ABC 302 Region……………………… Substation………………. Trip Report No. ……………

LINE/ICT/BUS REACTOR TRIPPING REPORT (TO BE FILLED BY SHIFT INCHARGE)

01 Date and Time of Occurrence 02 Date and Time of Restoration 03 Outage Duration 04 Particulars of Tripping :

(Relay flags as per 303 and PLCC Counter readings as per 304)

05 Connection of line/ICT before Occurrence (indicate line/ICT connected to which Bus i.e. Bus No. 1,2 or Transfer Bus)

06 System Condition immediately before occurrence a. Frequency b. Voltage c. Load MW & MVAR (On each line/ICT)

1. 2. 3. 4. 5.

d. Whether any line/equipment was under maintenance. e. Whether any protection was bypassed/not available.

07 Tripping Sequence (Indicate time of tripping of each feeder) 08 Equipment damage, if any 09 Sequence of normalization 10 Reasons for unsuccessful auto re-closure or auto restart. 11 Analysis

a. Cause of occurrence b. Suggestion for improvement

12 Any other relevant information 13 Review of Protection by T&C Engineer

(T&C ENGINEER) ( SHIFT INCHARGE ) Note : Photocopies of the relevant portions of Disturbance Recorders and Event Logger may be enclosed along with tripping report. Copies:

1. …………………………. 2. …………………………. 3. ………………………….

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Form No. ABC 303 Region……………………… Substation……………….

Relay Flag details after Line/ ICT/ Bus Reactor tripping.

Relay Flag Details Relay Flag Details of other end LA Counter Reading Sl.No. Date &

Time of tripping

Name of Line/

ICT/Bus Reactor

Control Panel Main-I

Main-II

Other Relays

Control Panel

Main-I

Main-II

Other Relays

Before Tripping

After Tripping

Remarks: 1. Fault Locator reading, Fault Current in Phase(s) be mentioned in the Main-I/II Column.

(Shift In Charge) Note: Column spacing may be adjusted as per site requirements.

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Form No. ABC 304 (a) Region……………………… Substation……………….

PLCC Counter Increment Readings after Line tripping

Sl.No

Date & Time of tripping

Name of Line Channel-I Increments Channel-II Increments

Code-1 Code-2 Code-3 Code-4 Code-1 Code-2 Code-3 Code-4 TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX

Note: Column spacing may be adjusted as per site requirements.

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Form No. ABC 304 (b) Region……………………… Substation……………….

PLCC Counter Increment Readings on the Remote end after Line tripping

Sl.No

Date & Time of tripping

Name of Line Channel-I Increments Channel-II Increments

Code-1 Code-2 Code-3 Code-4 Code-1 Code-2 Code-3 Code-4 TX RX TX RX TX RX TX RX TX RX TX RX TX RX TX RX

Remarks: This form is to be filled if other end is not a POWERGRID Terminal. Note: Column spacing may be adjusted as per site requirements.

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Form No. ABC 305 Name of Region :

OUTAGE DETAILS ( Elementwise chronological listing )

Outage Restoration Duration of outage Element Name

Event no. Date Time Date Time Attributable to

POWERGRID ( Hrs, Mins )

@

Attributable to others (Hrs, Mins)

#

Attributable to system constraints / Natural calamity / militancy (Hrs, Mins )

&

Outage under the category of deemed available ( Hrs, Mins )

*

Category code

Reason of outage

Element 1 Subtotal of outage hours of Element 1

Element 2 Subtotal of outage hours of element 2

Grandtotal of outage hours for all elements

@ - All outages with category codes ending with ‘T’ & - All outages with category codes ending with ‘C’ # - All outages with category codes ending with ‘U’ * - All outages with category codes ending with ‘D’ Note- 1. Event Number and Category code to be assigned in consultation with CPCC. 2. To be maintained at Regional Level.

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FORM NO.: ABC 310 SANCTION FOR TEST Sanction No………….. I. REQUEST 1. Test Area: 2. Test to be carried out: 3. Period of SFT : From (Date/Time): To: (Date/Time) : 4. a) Details of isolation required :

b) Details of SAFETY KEY required:

5. Precaution(s) taken to achieve safety: 6. Name and number of persons to carry out testing : SFT SFT

(Requested by) (Approved by) Signature : Name : Designation : Date & Time :

II. ISSUE : 1. Sequence of isolation: i) ii) iii) iv) 2. SFT allowed. (From)Date/Time…………………(To)Date/Time………………. 3. Further precautions to be taken to achieve Safety:

4. Safety key(s) handed over : 5. Test area is isolated and it is safe to carry out test:

Signature : Name : Designation (Shift Engineer) : Date: : Time: Note: 1. SFT request to be approved by Substation In-charge

2. SFT to be issued to POWERGRID executives/Authorised representative of Licencee only. 3. Earthing to be done at the place of test. 4. Colour codification : Ist, IInd & IIIrd copy of SFT will be light Pink, white & light

Blue respectively. Caution: SFT should not be issued if any PTW is pending on the same isolated zone.

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III. RECEIPT

I hereby declare that I have personally inspected and have satisfied myself that such equipment has been switched off and isolated, where the test(s) to be carried out. I also accept responsibility for carrying out test(s) on equipment detailed on this SFT and that no attempt will be made by me or by any man under my control, to carry out test on any other equipment.

Name : Signature : Designation : Date & Time :

RETURN OF SANCTION FOR TEST A. Details of tests carried out : B. Restrictions, if any, on the equipment being returned to service : C. Clearance

I hereby declare that all men and material have been withdrawn and following exceptions are recorded.

Name : Signature: Designation : Date & Time :

IV. CANCELLATION OF SFT: 1. SFT cancelled and entry made in PTW/SFT register on Page No……. 2. Sequence of normalization :

i) ii) iii) iv) v)

Name : Signature: Designation : Date & Time :

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Annexure – I

Standard List of Element Outage Categories CATEGORY TYPE OF OUTAGE

LINE FAULTS ON LINES OWNED BY POWERGRID LEFT Tripping due to earth faults LART Auto Re-closure due to earth faults

LPPT Phase to phase faults, double line to earth faults, 3-ph and 3-ph earth faults, but not due to power swings

LHWT Faults due to snapping of conductors, earth wire, jumper, insulator failure, failure of tower due to design & material deficiency etc.

SUBSTATION FAULTS IN POWERGRID SUBSTATIONS INCLUDING THE BAYS OWNED BY POWERGRID TERMINATED AT SEB SUBSTATIONS

SPLT Line tripped due to PLCC mal-operation SBBT

Busbar protection operation (POWERGRID Substation only including the fault initiated in POWERGRID owned bays located in a substation owned by other agency

SICT REF, differential, Buchholz protection operation, PRV, OTI, WTI on ICT SRET Reactor differential, REF, Backup impedance, Buchholz protection including NGR protections. SRMT Relay Maloperation SEMT Equipment Maloperation SEFT

Equipment failure

OTHER OUTAGES RELATED TO POWERGRID INCLUDING THE BAYS OWNED BY POWERGRID TERMINATED AT SEB SUBSTATION

OSPT Planned shutdown for maintenance work of POWERGRID elements OSFT Forced shutdown (e.g. E/W snappings / hotspots) OMST

Miscellaneous outages attributable to POWERGRID

SUBSTATION FAULTS IN OTHER AGENCIES CAUSING OUTAGE TO POWERGRID SBBU Bus-bar protection operation SICU REF, differential, Buchholz protection operation, PRV, OTI, WTI on ICTs SREU Reactor differential, REF, Backup impedance, Buchholz protection including NGR protections SRMU Relay Mal-operation SEMU Equipment Mal-operation SPLU Line tripped due to PLCC mal-operation of other agency SEFU Equipment failure

OTHER OUTAGES RELATED TO OTHER AGENCIES CAUSING OUTAGE TO POWERGRID OSPD

Planned shutdown availed by other agency / agencies for maintenance or construction of their transmission system causing outage of POWERGRID element.

OSFD Forced shutdown availed by other agency / agencies causing outage of POWERGRID element OMSU Miscellaneous attributable to other agency or force majeure condition

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SYSTEM CONSTRAINTS

GOVC Tripped on over voltage protection

GGDC Power swings/ trippings due to Grid Disturbances/ Under frequency islanding trippings/ reverse power flow blocking related tripping/ Hand tripping due to loss of voltage

GOFC ICT tripping on over fluxing GOLC ICT tripping on overloading/ over-current GOMD

Unable to restore after any outage (other than grid disturbance ) , due to system constraints

LVRD Line hand tripped for voltage regulation on RLDC instruction SVRD Bus reactor hand tripped for voltage regulation on RLDC instruction LPRD Line hand tripped for power regulation on RLDC instruction SPRD Transformer hand tripped for power regulation on RLDC instruction

OUTAGE OF SYSTEM DUE TO NATURAL CALAMITIES LNCC Line outage due to natural calamities SNCC Substation equipment outage due to natural calamities

SYSTEM OUTAGE CAUSED BY MISCREANTS / MILITANT ACTIVITIES LMAC Line breakdown caused by miscreants / militant activities SMAC Substation equipments failure caused by miscreants / militant activities

OUTAGE OF ELEMENTS UNDER O&M TO FACILITATE THE CONSTRUCTION ACTIVITIES OF NEW SYSTEM EXECUTED BY POWERGRID.

LCSD

Line shutdown taken to facilitate construction activities of new system being executed by POWERGRID

SCSD

Substation equipment shutdown taken to facilitate construction activities of new system being executed by POWERGRID

Documents

Standard Formats for Substation Operation