Hand Book of SEMs in SR

NARENDRA

MAHABOOB

NAGAR

CHITTOOR

VEMAGIRI

GVK

VTS STAGE IV

GAZUWAKA

GHANAPUR

RAICHUR

GOOTY

SALEM

UDUMALP

ET

TRICHUR

MADURAI

TRICHY

SRIPERUMBUDUR

NEYVELI

GUTTUR

KAIGA

RSTPP

BHADRAVATI

MUNIRABAD

P

P

P

P

P

KOLAR

TALCHER

JEYPO

RE

HOSUR

SSLM

M

MMDP

TRIVANDRUM

NELLORE

KALPAKKA

SIMHADRI

HIRIYUR

TALGUPPA

KADAPA

NEYVELI TPS–2 (EXP)

MAPS

HOODY

KURNOOL

KHAMMAM

N’SAGAR

ALMATHY

MYSORE

NELAMANGA

LA

SOMANAHALLI

GAUTHAMI

KONASEEMA

GMR

KALAVINDAPATTU

TIRUNELVELI

DITCHIPALLY

PUGALUR

GAJWEL

BTPS

VIJAYAWADA

WARANGAL

B P PPALLY

MALKARAM

KARAIKUDY

NEYVELI TPS–1 (EXP)

JINDAL

SPECIAL ENERGY METERS IN

SOUTHERN REGION

(HAND BOOK)

POWER SYSTEM OPERATION CORPORATION LTD.

SOUTHERN REGIONAL LOAD DESPATCH CENTRE

BANGALORE.

November 2010

I N D E X Sl. No. Description Page No: 1. SPECIAL ENERGY METERS

TECHNICAL DETAILS & OPERATING INSTRUCTIONS 01-20

1.1 Technical Specification for SEMs 01-08 1.2 Salient features of SEMs 09-13 1.3 Operating Instructions for SEMs and DCDs 14-16 1.4 Software installation procedure 17-18 1.5 SEM Data Format 19 1.6 Typical Metering Diagram 20

2. SPECIAL ENERGY METERS IN SOUTHERN REGION 21-47

2.1 Summary of SEMs in Southern Region 21 2.2 Constituent-wise summary of SEMs 22-27 2.3 List of Special Energy Meters installed in Southern Region 28-46 2.4 Master Frequency SEMs 47

3. SPECIAL ENERGY METERS LOCATION DIAGRAMS 48-67

3.1 General 3.1(a) Location diagram of SEMs in SR – 400 KV System 48 3.1(b) Location diagram of SEMs in State owned Inter-State lines 49 3.1(c) Location diagram of SEMs in ISTS network 50 3.1(d) Location diagram of SEMs in 400kV substations 51-55

3.2 Location diagram of SEMs at ISGSs 3.2(a) Ramagundam STPS 56 3.2(b) Talcher STPP-II 57 3.2(c) Neyveli Lignite Corporation 58 3.2(d) Madras Atomic Power Station 59 3.2(e) Kaiga Generating Station 60

3.3 Location diagram of SEMs at Drawee utilities 3.3(a) APTRANSCO system 61

3.3(b) KPTCL system 62 3.3(c) KSEB system 63 3.3(d) TNEB system 64 3.3(e) Pondicherry system 65 3.3(f) Goa system 66 3.3(g) PG-HVDC system 67

4. COMPUTATION OF INJECTION AND DRAWAL 68-85

4.1 Accounting Methodology 68-71

4.2 Computation of injection by ISGSs 72-77

4.2(a) Ramagundam STPS 72 4.2(b) Talcher STPP-II 73 4.2(c) Neyveli Lignite Corporation (TS2 Stage-1, TS2 Stage-2) 74 4.2(d) Neyveli Lignite Corporation TPS-1 Expansion 75 4.2(e) Madras Atomic Power Station 76 4.2(f) Kaiga Generating Station 76 4.2(g) Western Region 77 4.2(h) Eastern Region 77

4.3 Computation of drawal by Drawee Utilities

4.3(a) APTRANSCO system 78-79 4.3(b) KPTCL system 80-81 4.3(c) KSEB system 82 4.3(d) TNEB system 83-84 4.3(e) Pondicherry system 85 4.3(f) Goa system 85 4.3(g) PG-HVDC system 85

5. FUTURE REQUIREMENT OF SEMs IN SR 1.1 FUTURE REQUIREMENTS IN SR-II 86-89 1.2 FUTURE REQUIREMENTS IN SR-I 90

SECTION - 1

SPECIAL ENERGY METERS

TECHNICAL DETAILS

&

OPERATING INSTRUCTIONS

SPECIAL ENERGY METERS TECHNICAL

DETAILS

&

OPERATING INSTRUCTIONS

1.1 Technical Specification for SEMs

1.2 Salient features of SEMs

1.3 Operating Instructions for SEMs and DCDs

1.4 Software installation procedure

1.5 SEM Data Format

1.6 Typical Metering Diagram

SRLDC SEMs IN SOUTHERN REGION 1

1.1 TECHNICAL SPECIFICATION FOR SEMs

Technical Specification*

1.0 The energy metering system specified herein shall be used for tariff metering for

bulk, inter-utility power flows, in different Regions of India. One static type

composite meter shall be installed for each EHV circuit, as a self-contained device

for measurement of active energy (MWh) transmittals in each successive 15 minute

block and certain other functions, as described in the following paragraphs.

2.0 The meters shall be suitable for being connected directly to voltage transformers

(VTs) having a rated secondary line-to-line voltage of 110V, and to current

transformers (CTs) having a rated secondary current of 1 A (model-A) or 5A

(model-B). Any further transformers/transactions/transducers required for their

functioning shall be in-built in the meters. Necessary isolation and/or suppression

shall also be built-in, for protecting the meters from surges and voltage spikes that

occur in the VT and CT circuits of extra high voltage switchyards. The reference

frequency shall be 50Hz.

3.0 The active energy (Wh) measurement shall be carried out on 3-phase, 4-wire

principle, with an accuracy as per class 0.2 S of IEC-687-1992-06 (2nd

edition)/

IEC-62053-22:2003. In model-A (for CT secondary rating 1A), the energy shall be

computed directly in CT and VT secondary quantities, and indicated in watt-hours.

The meter shall compute the net active energy (Wh) sent out from the substation

bus bars during each successive 15-minutes block, and store it in its memory along

with plus/minus sign. It shall also display on demand the net Wh sent out during

the previous 15-minute block, with a minus sign if there is net Wh export.

4.0 Further, the meter shall continuously integrate and display on demand the net

cumulative active energy sent out from the substation bus bars upto that time. The

cumulative Wh reading at each midnight shall be stored in the meter’s memory.

The register shall move backwards when active power flows back to substation bus

bars.

5.0 The meter shall count the number of cycles in VT output during each successive

15-minutes block, and divide the same by 900 to arrive at the average frequency.

This shall be stored in the meter’s memory as a 2-digit code which shall be arrived

at by subtracting 49 from the average frequency, multiplying by 50 and neglecting

all decimals. For example, 49.89 Hz shall be recorded as 44. In case the average

frequency is less than 49.0 Hz, it shall be recorded as 00. In case it is 51.0 Hz or

higher, it shall be recorded as 99. The average frequency of the previous 15-

minutes block shall also be displayed, on demand in hertz.

* Note: This specification is applicable to the meters procured by POWERGRID in general ,while the

underlined items are the modifications carried out in the specification in respect of SEMs

procured after 2005 .


6.0 The meter shall continuously compute the average of the RMS values of the three

line-to-neutral VT secondary voltages as a percentage of 63.51 V, and display the

same on demand. The accuracy of the voltage measurement/computation shall be

atleast 0.5%, a better accuracy such as 0.2% in the 95-105% range being desirable.

7.0 The meter shall also compute the reactive power (VAR) on 3-phase, 4-wire

principle, with an accuracy as specified in clause 11.0, and integrate the reactive

energy (VARh) algebraically into two separate registers, one for the period for

which the average RMS voltage is 103.0% or higher, and the other for the period

for which the average RMS voltage is below 97.0%. The current reactive power

(VAR), with a minus sign if negative, and cumulative reactive energy (VARh)

readings of the two registers shall be displayed on demand. The readings of the

two registers at each midnight shall also be stored in the meter’s memory. In

model-A (for CT secondary rating of 1 A), the reactive power and reactive energy

transmittals shall be computed in VAR/VARh directly calculated in CT and VT

secondary quantities. When lagging reactive power is being sent out from

substation bus bars, VAR display shall have a plus sign or no sign and VARh

registers shall move forward. When reactive power flow is in the reverse direction,

VAR display shall have negative sign and VARh registers shall move backwards.

8.0 In the model-B (for CT secondary rating of 5A), all computations, displays and

memory storage shall be similar except that all figures shall be one fifth of the

actual Wh, VAR and VARh worked out from CT and VT secondary quantities.

9.0 The meters shall fully comply with all stipulations in IEC standards 687-1992-06

(2nd

edition)/62052-11:2003 and 62053-22:2003, except those specifically modified

by this specification. The reference ambient temperature shall be 30° C.

10.0 Errors shall be reasonable for all power factor angles from 0° to 360°.

11.0 For reactive power (VAR) and reactive energy (VARh) measurements, IEC/145 /

IEC 62053-23:2003 shall be complied with. The accuracy of measurement of

reactive energy shall be as per class 2.

12.0 Each meter shall have a test output device (visual) for checking the accuracy of

active energy (Wh) measurement. The preferred pulsing rate is twenty(20) per Wh

for Model-A and four(4) per Wh for model –B. It shall be possible to couple this

device to suitable testing equipment also.

13.0 No rounding off to the next higher last decimal shall be done for voltage and

frequency displays. All 15 minute Wh figures shall however be rounded off to the

nearest last decimal.

14.0 The three line-to-neutral voltage shall be continuously monitored and in case any of

these falls below about 70%, a normally flashing lamp provided on meter’s front

shall become steady. It shall go off it all three voltages fall below 70%. The time

blocks in which such a voltage failure occurs/persists shall also be recorded in the

meter’s memory. The lamp shall automatically resume flashing when all VT


secondary voltages are healthy again. The two VARh registers specified in clause

7.0 shall remain stay-put while VT supply is unhealthy.

15.0 The meters shall normally operate with the power drawn from the VT secondary

circuits. The total burden imposed by a meter for measurement and operation shall

not exceed 10 VA on any of the phases. An automatic backup for continued

operation of the meter’s calendar-clock, and for retaining all data stored in its

memory, shall be provided through a long-life battery, which shall be capable of

supplying the required power for at least 2 years. The meters shall be supplied duly

fitted with the batteries, which shall not require to be changed for atleast 10 years,

as long as total VT supply interruption does not exceed two years. The battery

mounting shall be designed to facilitate easy battery replacement without affecting

PCB of the meter. The meters shall not require any separate auxiliary supply for

their operation. All displays may disappear on loss of VT supply.

16.0 Each meter shall have a built-in calendar and clock, having an accuracy of 30

seconds per month or better. The calendar and clock shall be correctly set at the

manufacturer’s works. The date (year-month-day) and time (hour-min.-sec.) shall

be displayed on the meter front (when VT supply has been connected), on demand.

Only limited clock adjustment shall be possible at site, using the DCD. When an

advance or retard command is given, six subsequent time blocks shall be contracted

or elongated by ten seconds each. The meter shall not accept another clock

correction command for seven days. All clock corrections shall be registered in the

meter’s memory and suitably shown on print out of collected data.

17.0 Each meter shall have a unique identification code, which shall be marked

permanently on its front, as well as in its memory. All meters supplied to

POWERGRID as per this specification shall have their identification code starting

with “NP”, which shall not be used for any other supplies. “NP” shall be followed

by a dash and a four digit running serial number, further followed by a dash and

“A” for Model-A, and “B”, for the use with CT secondary of 1 A and 5 A

respectively.

18.0 Each meter shall have atleast one seven (7)-character, seven-segment electronic

display, for indication of the following (one at a time), on demand:

i) Processor’s identification code and model : NP1234 A

ii) Date (year month day) : 910329 d

iii) Time ( hour min. sec. ) : 195527 t

iv) Cumulative Wh reading : 12345.6 C

v) Average frequency of the previous block : 49.89 F

vi) Net Wh transmittal during the previous block: - 28.75 E

vii) Average % voltage : 99.2 U

viii) Reactive power (VAR) : 106.5 r

ix) Voltage - high VARh register reading : 01234.5 H

x) Voltage - low VARh register reading : 00123.4 L

xi) Low battery indication


19.0 A gold plated touch key or push button shall be provided on the meter front for

switching on the display and for changing from one indication to the next. (The

display shall switch off automatically about one minute after the last operation of

touch key/push button). When the display is switched on, the parameter last

displayed shall be displayed again, duly updated.

20.0 Each meter shall have a non-volatile memory in which the following shall be

automatically stored:

i) Average frequency for each successive 15-minute block, as a 2-digit code

ii) Net Wh transmittal during each successive 15-minute block, upto second

decimal, with plus/minus sign

iii) Cumulative Wh transmittal at each midnight, in six digits including one

decimal

iv) Cumulative VARh transmittal for voltage high condition, at each midnight

in six digits including one decimal

v) Cumulative VARh transmittal for voltage low condition, at each midnight,

in six digits including one decimal

vi) Date and time blocks of failure of VT supply on any phase, as a star (*)

mark

21.0 The meters shall store all the above listed data in their memories for a period of ten

(10) days. The data older than ten (10) days shall get erased automatically.

22.0 Each meter shall have an optical port on its front for tapping all data stored in its

memory. Portable or hand held data collection devices shall also be separately

provided for this purpose, one for each substation, to serve as the interface between

the meters specified above and the local personal computer (PC). In addition to

above each meter shall be provided with a RS-485 port on one of it’s sides, from

where all the data stored in the meter’s memory can also be tapped. The overall

intention is to tap the data stored in the meter’s memories once a week from any of

the two ports mentioned above and transmit the same to a remote central computer

using STD or other communication links, through the local PC. It shall also be

possible to obtain a print out (hard copy) of all data collected from the meters,

using the local PC.


23.0 The whole system shall be such as to provide a print out (both from the local PC,

and from remote central computer) of the following form:

16 55 +16.28 56 +15.95 55 +15.32 54 +15.66

20 55 +14.93 55 +14.26 54 +14.85 56 +15.17

NP-1234-A 12345.6 01234.5 00123.4 29-03-91

00 57 +14.72 56 +13.83 55 +13.57 53 +12.91

04 52 +13.34 51 +12.76 52 +14.11 52 +15.28

24.0 The meters shall be supplied housed in compact and sturdy, metallic or moulded

cases of non-rusting construction and/or finish. The cases shall be designed for

simple mounting on a plane, vertical surface such as a control/relay panel front.

All terminals for CT and VT connections shall be arranged in a row along the

meter’s lower side. Terminals shall have a suitable construction with barriers and

cover, to provide a secure and safe connection of CTs and VTs leads through

stranded copper conductors of 2.5 sq. mm. size.

25.0 All meters of the same model shall be totally identical in all respects except for

their unique identification codes. They shall also be totally sealed and tamper

proof, with no possibility of any adjustment at site, except for clock correction.

26.0 The meters shall safely withstand the usual fluctuations arising during faults etc. In

particular, VT secondary voltages 115% of rated applied continuously and 190% of

rated for 3.0 seconds, and CT secondary current 150% of rated applied

continuously and 30 times of rated applied for 0.5 seconds shall not cause any

damage to or maloperation of the meters.

27.0 The meters shall also withstand without any damage or maloperation reasonable

mechanical shocks, earthquake forces, ambient temperature variations, relative

humidity etc. They shall have an IP-51 category dust-tight construction, and shall

be capable of satisfactory operation in an indoor, non-air conditioned installation.

28.0 The meters shall continue to function for the remaining healthy phase(s), in case

one or two phases of VT supply fails. In case of a complete VT supply failure, the

computation of average frequency (as per 5.0) shall be done only for the period

during which the VT supply was available in the 15-minute block. Any time block

contraction or elongation for clock correction shall also be duly accounted for.

29.0 The harmonics shall preferably be filtered out while measuring Wh, VAR and

VARh, and only fundamental frequency quantities shall be measured/computed.

30.0 Either the meters shall have built-in facility (eg. test links in their terminals) for in-

situ testing, or a separate test block shall be provided for each meter.


31.0 Portable/hand-held Data Collection Devices (DCD) :

These shall be tailor-made for tapping all data stored in a meter’s memory, and

faithfully transferring it to the local PC. Each device shall be supplied complete

with

i) a lead with optical head for coupling it to the meter,

ii) a lead for plugging it to a personal computer;

iii) an internal battery for powering the devices;

iv) a case for safely carrying it about

v) a battery charger

The total arrangement shall be such that one (1) operation can carry out the whole

operation himself, in about five (5) minutes per meter.

32.0 The DCD shall have a key for starting the data tapping from the coupled meter’s

memory, a key to start data transfer to the PC, and a lamp, which would light up on

completion of data collection, remain ‘on’ while the data is held in the device and

would go ‘off’ when all data has been transferred to the PC. Data tapping

operation shall not erase the data from the meter’s memory, or effect the meter

operation in any way. The memory of the DCD shall get automatically cleared

when the data has been transferred to the PC only then the DCD shall accept data

from another meter. DCDs shall also have necessary provision for meter clock

correction. DCDs shall be compatible with earlier supplied meters of L&T/SML

make in regard to data downloading etc.

33.0 The Contractor shall provide the necessary software which would enable a local

IBM-Compatible PC to (i) accept the data from the DCD and/or from a interface

device connected to the optical port/RS-485 port and store it in it’s memory in

binary read only format, (ii) Polling feature along with a task scheduler to run the

data downloading software at a pre-designated date and time repeatedly or by

manually selecting a meter. A detailed activity log shall also be available for each

downloading operation, (iii) display the collected data on PC’s screen in text

format, with forward/backward rolling, (iv) print out in text format the data

collected from one or more meters, starting from a certain date and time, as per

operator’s instructions, (v) transmit the collected data, in binary format, through an

appropriate communication link to the central computer, starting from a certain date

and time, as per operator’s instructions, and (vi) store the collected data ,in binary

format, on a floppy disc/CD/Pen Device.

34.0 The above software shall further ensure that absolutely no tampering (except total

erasures) of the collected metering data is possible during its handling by the PC.

The software shall be suitable for the commonly available PCs, and shall be

supplied to Owner in a compatible form to enable its easy loading into the PCs

available (or to be installed by the Owner/others) at the various substations.


35.0 Quality Assurance

The quality control procedure to be adopted during manufacture of the specified

equipment shall be mutually discussed and finalized in due course, generally based

on the established and proven practices of the manufacturer.

36.0 Testing

All equipment, after final assembly and before dispatch from manufacturer’s

works, shall be duly tested to verify that is suitable for supply to the Owner. In

particular, each and every meter shall be subjected to the following acceptance

tests:

i) Verification of compliance with Table 9 of IEC-687-1992-06 (2nd

edition) /

clause 8.1 of IEC-62053-22:2003, in both directions of power flow, for

class 0.2S.

ii) Test of the register ratio and the impulse value of the transmitting device,

for both directions.

iii) Verification that VARh measurement errors are within values permitted for

class 2 in Table-1 of IEC-145 / Table 6 of IEC 62053-23 for both directions

of power flow.

iv) Effect of +10% variation in measuring circuit voltage, on accuracy of Wh

and VARh measurement

v) Power loss.

vi) Dielectric properties.

vii) Starting and running with no-load for Wh and VARh, in both directions.

viii) Functional checks for display and memory.

ix) Accuracy of the calendar and clock.

x) Accuracy of voltage and frequency measurement.

37.0 Any meter which fails to fully comply with the specification requirements shall be

liable to be rejected by the Owner. However, the Owner may purchase such meters

at a reduced price in case of marginal non-compliance, at his sole discretion.


38.0 Acceptance Tests for DCD and PC Software

All DCDs, after final assembly and before despatch from

Contractor’s/Manufacturer’s works shall be duly tested to verify that they are

suitable for supply to the Purchaser. In particular, each and every DCD shall be

subjected to the following acceptance test:

i) Functional checks

ii) Downloading Meter Data from the Meter(s)

iii) Compatibility with PC Software

iv) Downloading the meter data on PC

v) Functioning of advance and retard time commands

vi) Per meter downloading time verification

vii) Capacity of DCD for data storage

39.0 Type Tests

One (1) out of every hundred (100) meters shall be subjected to the complete range

of type tests as per IEC-687-1992-06 (2nd

edition) / IEC-62053-22:2003, IEC-

62053-23:2003 and IEC 62052-11:2003, after final assembly. In case of any

failure to pass all specified tests, the contractor shall arrange to carry out the

requisite modifications/replacements in the entire lot of meters at his own cost.

After any such modifications and final assembly, two (2) meters selected out of the

lot by the Owner’s representative shall be subjected to the full range of type tests.

The lot shall be accepted by the Owner only after successful type testing.

40.0 Installation and Commissioning

The static energy meters specified above shall be installed at various EHV

substations owned by the Owner, SEBs and other agencies, throughout India. The

exact location and time-table for installation shall be finalized by the Owner in due

course, and advised to the contractor, such that contractor’s responsibility in this

respect ends within six (6) months of completion of all supplies.

41.0 The Contractor shall be responsible for total installation and commissioning of the

meters (along with test blocks, if supplied separately) as per Owner’s advice,

including unpacking and inspection on receipt at site, mounting the meters on

existing control and relay panels at an appropriate viewing height, connection of

CT and VT circuits including any required rewiring, functional testing,

commissioning and handing over. The Contractor’s personnel shall procure/carry

the necessary tools, equipment, materials and consumables (including insulated

wires, lugs, ferrules, hardware etc.)

42.0 As a part of commissioning of DCDs the Contractor shall load the software

specified in clause 33 and 34 into the PCs at the respective substations, and fully

commission the total meter reading scheme. He shall also impart the necessary

instructions to substation engineers.


1.2 SALIENT FEATURES OF SEMs

Special Energy Meters

The meters are of 0.2S accuracy class and are specially designed for Frequency Linked Tariff

Metering scheme for Inter Utility Exchanges at Grid level.

Salient features :

• Static type – Totally Electronic

• Compliant with IEC 687 / IEC-62053-22:2003 standard

• Better accuracy (0.2S class)

• Composite meter capable of measuring Active and Reactive Energy in all 4 quadrants

• 3 phase-4 wire measurement

• Direct measurement as per CT/PT secondary quantities

• Filters harmonics and measure energy at fundamental frequencies.

• Operates on self power from connected PT supply (110V Ph to Ph/ 63.51 V Ph-N)

• Different Current ratings suiting to CT secondary [ex. 1 Amp (A-type meter) or 5 Amp

(B type Meter)]

• VA burden not more than 10 on any of the phases

• Works on Real Time Clock (RTC) hence data is time stamped.

• Time adjustment facility ( in steps of 1 min in a week )

• No calibration required due to absence of moving parts.

• Calibration possible only at Manufacturers’ works

• High security of data storage

Criteria for location of SEMs

Main Meters: Those SEMs primarily used for Energy Accounting / Billing

Check Meters: Those SEMs connected to the same CT/PT as the Main meter. They are used

for Energy Accounting / Billing in case of Discrepancy in reading of Main Meter.


Standby Meters: These SEMs are used for Energy Accounting in case of Discrepancy in

reading of Main meter as well as Check Meter. These are connected to other set of CT/PTs as

that of the Main Meter.

Sl.

No.

Description Main Meters Check Meters Standby Meters

1. Injection of all

Generating Stations

except NLC, MAPS

& KAIGA

Outgoing

Feeders

Outgoing

Feeders

GTs and TTs

2. Injection of Other

Generating Stations

NLC, MAPS &

KAIGA

GTs and SUTs GTs and

SUTs

Outgoing Feeders

3 Drawl by a

Beneficiary at CTU

Substations

HV side of

ICTs

None LV and Tertiary

side of ICT (if

tapped)

4 Drawl by a

Beneficiary on a State

owned inter-State line

Respective

end.

None Other end

5. 400 kV CTU Lines None None One end of the Line

The above details are only indicative and may vary depending on the prevalent

scheme and availability of CTs/PTs at a particular station. However, the Regulations

published on 17th

March 2006 by CEA for regulating the Installation and Operation of

Meters specify the location of meters (item 7) as follows:

Quote:

“The location of interface meters, consumer meters and energy accounting and audit

meters shall be as per the Table given below:

Provided that the generating companies or licensees may install meters at additional

locations in their systems depending upon the requirement.

TABLE Sl.

No Stages Main Meter Check

Meter Standby Meter

A. Generating

Station

On all outgoing

feeders

On all

out-

going

feeders

(i) High Voltage

(HV) side of

Generator

Transformers

(ii) High Voltage

(HV) side of all

Station Auxiliary

Transformers


Explanation: The location of main, check and standby meters installed at the existing

generating stations shall not be changed unless permitted by the Authority/

B. Transmission

and

Distribution

System

At one end of the

line between the

substations of the

same licensee, and

both ends of the line

between sub-

stations of two

different licensees.

Meters at both ends

shall be considered

as main meters for

respective licensees.

There shall be no

separate standby

meter. Meter

installed at other

end of the line in

case of two

different licensees

shall work as

standby meter.

C. Inter-

Connecting

Transformer

(ICT)

High Voltage (HV)

side of ICT

Low Voltage (LV)

side of ICT

D. Consumer

directly

connected to

the Inter-State

Transmission

System or

Intra-State

Transmission

System who

have to be

covered under

ABT and have

been permitted

open access by

the Appropriate

Commission

or

Any other

system not

covered above.

As decided by the Appropriate Commission.

Unquote

Sign convention of Active and Reactive energy recorded

(i) For SEMs on all locations except GTs at Generating station.

When energy (active/reactive) flows out of the bus to which the SEM is connected, the energy

is recorded with a ‘+’ sign and vice versa.


(ii) For SEMs on GTs at Generating Stations

When energy (active/reactive) flows into the bus to which the SEM is connected, the energy

is recorded with a ‘+’ sign and vice versa.

Accordingly the values in the cumulative registers for active energy and reactive energy keep

incrementing when the net energy for a particular time period recorded is ‘+ve’ and

decrementing when it is ‘-ve’. For example if the initial value of these registers is 00000.0

(say) and the net energy in a block is 25.0 (say), the cumulative value of the register

increments to 00025.0. Once the value reaches 99999.9, the same will get reset to 00000.0

Details of Data recorded :

• No multiplication Factor is incorporated in the Meter. Hence data in Secondary side (Wh)

is recorded.

• Meter can be interchanged from one location to another irrespective of their CT/PT ratios

• To get data on Primary side in MWh, the secondary side data in Wh is to be multiplied by

the connected CT/PT ratio.

• Stores the following data for previous 9 days and the current day period (in case of

SMLOLD meters) and previous 10 days and current day period (in case of SMLNEW and

L&T meters).

Data recorded in every Block :

• Net Active Energy in 15 min. Time blocks (Wh)

• Average frequency in 15 min. Time block

(records frequency in the band of 49Hz<f<51.00Hz in steps of 0.02Hz

in a coded form as integer from 00 to 99)

FC = (f-49)*50

where FC means Frequency Code

f means Frequency

• Voltage failure flag. ( a * mark is recorded if Avg. Voltage in the three phases falls below

70%)

• Time Correction flag ( ‘aa’ if time is advanced and ‘rr’ if time is retarded).

Data recorded once in a day at 00:00 hrs :

(1) Sl. No. Of meter

(2) Cumulative active energy register – C

(3) High voltage reactive energy register – H

(4) Low voltage reactive energy register – L

(5) Date


Details of Data appearing on the LED display on the front of the SEM

On pressing a push button the following are seen in a cyclic manner:

(i) LED check

(ii) Meter Serial no.

(iii) Date

(iv) Time

(v) Active Energy in previous 15 min. Block (Wh)

(vi) Average Frequency in previous 15 min. Block (Hz.)

(vii) Cumulative active energy register – C (Wh)

(viii) High Voltage Reactive Energy Register – H (Varh)

(ix) Low voltage Reactive Energy Register – L (Varh)

(x) Instantaneous average voltage of the 3 ph. – U (%)

(xi) Instantaneous reactive power – r (Var)


1.3 OPERATING INSTRUCTIONS FOR

SEMs AND DCDs

1) SEMs Data Collection

Every Monday morning data is to be collected using a Data Collecting Device (DCD), a small

hand held unit though an Optical Coupler Cable

The same is used to dump the SEM data into a PC using a Serial Port Communication Cable

with the help of a manufacturer supplied software.

The text form of the data is to be created through this software and is to be checked for proper

format and syntactic correctness.

Voltage failure flags (*) are to be correlated with PT supply failures due to feeder shutdowns /

Blown fuse, Switching operations etc.

Time Correction flags (aa/rr) are to be correlated with the Time Advance/Retard commands

given through DCD.

After all the above checks, the binary coded file (*.MRI in case of SML meters or *.DCD and

*.DAT in case of L&T meters as the case may be) is to be transmitted to SRLDC through e-

mail

The reasons for Voltage Failure flags shall be intimated to SRLDC for incorporating necessary

adjustments for under recording. Time correction flags shall also be intimated so that the same

can be analysed further.

The data along with above information and site observations shall be e-mailed to

[email protected]., [email protected] , [email protected] , and [email protected]

2) Data collection in case of feeder outage

In case the feeder is in ‘out of service’ condition the meter will not communicate with

DCD as the power supply to the meter will not be available. In such cases for enabling data

collection a single phase supply of 63.5V may be extended between any of the phase and

neutral points of the voltage terminal of the meter through a means like ‘Variac’ or any such

transformer which gives the required output. While doing this, permission may be obtained

from local operational staff and due care may be taken to effect necessary isolations like

removal of PT fuse or corresponding PT input wiring to the meter etc.


In case of L&T meters a battery back up button is provided for data collection during

the feeder outage conditions. The same may be kept pressed and data shall be collected. This

button is to be sparingly used to conserve the battery back-up and is to be kept pressed while

data collection is going on

3) Periodical Checks :

SEMs

• Special energy meter may be periodically checked for any low voltage LED indication. If the

LED becomes steady, it indicates the average voltage falling below 70%. PT inputs may be

checked for any blown fuse etc.

• The push button display on the front panel may be made use of, for periodical checking of

various parameters measured by the meter

• Time Drift checking

Since the data recorded by SEM is time stamped (15 min. block data), it is very important to

maintain the time of the meter, as it is prone to drift due to inherent variation of parameters

like temperature, humidity etc. The time of the meter (Real Time Clock) as shown on the

display panel of the SEM may be periodically checked for its correctness with respect to

GPS/AIR time. When the time drift is more than 1 minute, necessary correction through the

DCD may be carried out. It may be noted that time correction through DCD can be done by

only 1 minute in a week and if the drift is more than 2 minutes, correction may be carried out

in successive weeks. Due care may be taken regarding the type of correction i.e. ADVANCE

or RETARD depending on whether the meter is SLOW or FAST. All the sites have to send

monthly reports on the time drift of the SEMs as on the 1st Monday of the month and also the

Time corrections carried out during the month.

DCDs

• Manual for DCD shall be thoroughly studied to ensure proper operation of DCD.

• DCD may be carefully handled and preserved in a suitable cover, when not in use.

• Healthiness of Data Collecting Device (DCD) and associated cables, accessories like charger,

battery etc. shall be maintained to avoid last minute emergencies.

• It is preferred to use a fully charged battery with the DCD before data collection.

• In case of Analogic DCDs, the DCD may be kept in charged condition for at least 24 hours

before data collection.


4) Special precautions

SEMs

i) Never keep the SEM in De-energised condition for long durations, to avoid drain on the

internal battery. In case of spare meters, the SEM may be kept in charged condition by

extending the supply to the voltage terminals.

ii) Never leave the optical window uncovered. Otherwise entry of dust particles on the

window glass may result in problems in data collection because of improper

communication of DCD with the meter.

iii) Never remove the optical cable from the meter while data collection is in progress. Doing

so may result in hanging of the internal processor because the same would be in

handshaking mode with the DCD till the data collection process is completed.

iv) Never subject the meter to extreme climatic conditions. It may be suitably guarded in a

safe panel free from dust and water ingression.

DCDs

i) Never use a non-chargeable/disposable Battery cell in the DCD as it is prone to improper

drain characteristics.

ii) Never fold the optical cable used for data collection or data dumping cable as this may

result in cutting of the internal strands or opening of the soldered joints.

iii) Never leave the Analogic DCDs (supplied with L&T and SML new meters) in uncharged

condition for a long time as it may result in corruption of the internal software.


1.4 SOFTWARE INSTALLATION PROCEDURE

A software provided by the meter manufacturer is required to be installed in the PC

where SEM data is to be dumped. In case of SEMs supplied by SML, the name of the software

is SMARTGRID in Windows version and FBM_SYS in DOS version. In case of SEMs

supplied by L&T the software is called VINCOM in Windows version and LUCID in DOS

version. The DOS version of these programs can be installed by simply copying the concerned

folders. The programs may be run by double clicking on the respective files viz.

FBM_SYS.EXE or LUCID.EXE or executing tem from DOS prompt.

For installation of the Windows version of the software the following procedure may

be followed:

SMARTGRID INSTALLATION

1. Insert ‘CD’ and go to folder ‘S_Grid\Disc1’.

2. Run ‘Setup’ file with PC symbol by double clicking the same. Installation sequence will ask

you to enter the drive/folder where Smartgrid is to be installed. Select the same as per your

choice.

3. The software is copyright protected and hence a protection floppy is provided along with the

CD to copy the copyright permission into the PC. The floppy can be utilized for installation in

two PCs.

4. For installing the copyright permission files, insert the protection floppy.

Copy Smartini & Keys.dat files from floppy and paste them in C:\Smartgrid directory.

Go to DOS prompt and then to A: drive and type ‘install A:C: or the drive where you installed

the files as in step 2.

The following messages will appear on screen in sequence:

Installing Protection system………

Installing………….

Complete.

Copying all pertinent files

1 file(s) copied

1 file(s) copied

A:\>

Now the program is ready for use. It can be executed by clicking on the “Smartgrid” icon in

the ‘Programs’ Menu or in the corresponding folder.

After opening the program the following details are to be entered

User Name: Supervisor

Password: superpower


The menu in the program appears and the same is self explanatory. For further guidelines,

Help menu may be referred.

5. If the software from this PC is to be removed, first the copyright permission shall be

transferred from the PC to protection floppy to utilize the same in another location. Then

uninstall the program files from PC.

i) For transferring the copyright permission from PC to floppy:

Insert the Protection floppy and type the following command:

A:\>Remove C: or D: or E: or F: A:

where C/D/E/F is the drive name where software was installed.

The following messages will appear in sequence:

A:\>SCPBAT R C: A:GRIDSVR /E/V/D

Removing………….

Complete.

A:\>

Now the copyright file is restored from PC to floppy, so that the same can be used for another

installation.

ii) For uninstalling the program files from the PC:

Uninstall the ‘Smartgrid’ software through ‘Add/Remove programmes’ menu in ‘Control

Panel’ in “My Computer”.

VINCOM INSTALLATION

Insert the CD containing VINCOM software and unzip the files contained in VINCOM

0203f.zip to a Folder of your choice.

Open that folder and double click on the ‘set up‘ file (with computer icon) and follow the

procedure displayed. The program would ask details such as consumer name, invoice No.,

consumer code etc. Ignore the same. At this stage, press Alt + Tab keys together and follow

the steps given thereof. After completion of installation, the computer would prompt for

restarting of the computer. After restarting of the computer go the Programs Menu and click

on the VINCOM icon The opening screen appears requiring to enter the following details:

User ID : Administrator

Password : admin

After entering the above details, the program is ready for use and the menu displayed is

self explanatory. Further guidance can be obtained from the ‘Help’ Menu.


1.5 SEM DATA FORMAT

WEEK FROM 0000 HRS OF 13-11-05 TO 0953 HRS OF 22-11-05

NP-0138-A 00285.1 37994.0 00376.2 13-11-05

00 56 -06.14 56 -06.00 58 05.78 .. .. 63 -05.42

04 61 -05.42 53 -05.50 52 -05.62 .. .. 60 -06.33

08 54 -06.93 54 -07.55 56 * -07.06 .. .. 53aa -06.69

12 56 -05.70 54 -05.77 55 -05.75 .. .. 58rr -05.86

16 58 -06.78 52 -06.91 53 -07.01 .. .. 55 -07.22

20 53 * -16.59 56 -16.26 59 -15.76 .. .. 60 -14.53-751.67

NP-0138-A 99533.4 37722.1 00376.2 14-11-05

Time

Advance/

Retard

Flag

Week heading

To date

& time Meter

serial

number

Cumalative

C Reg. for

Active

Energy

From

date &

time Cumalative

H Reg. for

Reactive

Energy

under High

Voltage

(>103%)

Cumalative L Reg.

for Reactive

Energy under Low

Voltage (<97%)

Day

heading

Time of

the Block

Average

Frequency

in the 15

min Time

Block in an

Integer

Code

Active

Energy in

the 15 min.

Time Block

Day

heading

for next

day

Data for 1

Time

Block

Voltage

Low Flag

Day total

of Wh


ISTS

NTPC Stations (ISGS-1) Other than NTPC Stations (ISGS-II)

ISGS -I ISGS -II

Aux. Aux

.

ISTS

ISTS

SEB-

A SEB-

A

SEB-B

A B D E C

F

F'

G H J

J' K

K'

L M

SEB-

A

ST U

V W

X

Y

SEB-B

N O P

Q R

C

1 C

2

M1 M2

S1 S2

ISGS-I injection

Main = (F+G+H+J+K)

Check=(F'+L+M+J'+K')

Standby = (A+B+C+D+E)

ISGS-II injection

Main = (M1+M2)

Check=(C1+C2)

Standby = (S1+S2)

Aux.

Main

Standby

Meter

Check

SEB-B drawal

Main = (T+U+X)

Standby = (V+W+Y)

1.6 TYPICAL METERING DIAGRAM

SECTION – 2

SPECIAL ENERGY METERS IN

SOUTHERN REGION


IN SOUTHERN REGION

2.1 Summary of SEMs in Southern Region

2.2 Constituent-wise summary of SEMs

2.3 List of Special Energy Meters installed in

Southern Region

2.4 Master Frequency SEMs

2000

series

4000

series

(A) NTPC 2 26 0 28 17 0 0 71

(B) NLC # 2 29 14 0 68 0 0 111

(C ) NPC 2 0 1 27 2 0 0 30

(D) LKPPL 1 0 0 0 2 0 0 2

(E) APTRANSCO 17 4 0 3 26 0 0 33

(F) KPTCL 14 3 7 12 23 0 0 45

(G) KSEB 6 0 0 0 6 0 1 7

(H) TNEB 11 4 2 1 7 3 0 17

(I) PONDICHERRY 3 0 0 0 3 0 0 3

(J) GOA 2 2 0 0 2 0 0 4

(K) PG-HVDC 3 0 1 * 5 * 3 * 0 0 9*

(L) CTU(POWERGRID) 29 0 12 35 202 1 0 250

(M) WR 2 0 2 * 3 * 0 0 0 5*

(N) ER 3 0 1* 5 * 3 * 0 0 9*

(O) TOTAL 97 68 36 106 360 4 1 573

# This includes 60 Nos. and 14 nos. of A type meters installed by NLC at NLC-TS-II and

NLC TPS-I Exp. respectively. All other meters at NLC are installed by POWERGRID

* Meters not considered in SR Total

3 PG-HVDC meters in (K) are included in (L) also.

6 PG-HVDC meters in (K) are included in (N) also

Besides above, 5 Meters in WR (M) & 9 meters in ER (O) are also not considered in SR total.

2.1 SUMMARY OF SEMs IN SOUTHERN REGION

A-Type

SML (new)

SML(old)

Total

No. of

metersL&T

Ref.

No.Agency

No. of meters

No. of

locations

B-Type

SML L&T

SRLDC 21 SEMs IN SOUTHERN REGION

(A) National Thermal Power Corporation Ltd.

2000

series

4000

seriesSML L&T

1Ramagundam

STPS26 0 8 13 0 0 47

2 Talcher STPS 0 0 20 4 0 0 24

TOTAL 26 0 28 17 0 0 71

(B) Neyveli Lignite Corporation Ltd.

2000

series

4000

series

1 NLC TS-II 29 0 0 60 0 0 89

2NLC TPS-I

Expansion0 14 0 0 0 0 14

3NLC TPS-II

Expansion0 0 0 8 0 0 8

TOTAL 29 14 0 68 0 0 111

(C) Nuclear Power Corporation Ltd.

2000

series

4000

series

1 Madras APS 0 0 8 0 0 0 8

2 Kaiga GS 0 1 19 2 0 0 22

TOTAL 0 1 27 2 0 0 30

(D) Lanco Kondapally Power Pvt Ltd.

2000

series

4000

series

1 LKPPL 0 0 0 2 0 0 2

TOTAL 0 0 0 2 0 0 2

Sl.No. Location Name

No. of meters

Total

A-Type B-Type

SML(old)

SML (new)

L&T SML L&T

Total

Total

A-Type

L&T SML

B-Type

L&T

2.2 CONSTITUENTWISE SUMMARY OF SEMs

A-TypeSML (new)Sl.No. Location Name

SML(old) L&T

No. of meters

Total

B-Type


No. of meters


No. of meters

A-Type

SML(old)

SML (new)

L&TSML(old)

SML (new)

B-Type

SML L&T

SRLDC 22-27 SEMs IN SOUTHERN REGION

(E) Transmission Corpn. of Andhra Pradesh Ltd.

2000

series

4000

series

1 Mamidipally 0 0 0 4 0 0 4

2 Kurnool 0 0 3 0 0 0 3

3 Mahaboobnagar 0 0 0 2 0 0 2

4 Vemagiri 0 0 0 6 0 0 6

5 Chittoor 400 kV 0 0 0 2 0 0 2

6 Ditchipally 0 0 0 1 0 0 1

7 Gajwel 0 0 0 2 0 0 2

8 Malkaram 0 0 0 2 0 0 2

9 Boopalapally 0 0 0 2 0 0 2

10 Tandur 0 0 0 1 0 0 1

11 Gooty 0 0 0 1 0 0 1

12 Chittoor 220 kV 0 0 0 1 0 0 1

13 Sulurpet 0 0 0 1 0 0 1

14 Araku 2 0 0 0 0 0 2

15 Upper Sileru 1 0 0 0 0 0 1

16 Lower Sileru 1 0 0 0 0 0 1

17 Kakinada 0 0 0 1 0 0 1

TOTAL 4 0 3 26 0 0 33

(F) Karnataka Power Transmission Corporation Limited

2000

series

4000

series

1 Raichur 0 0 0 5 0 0 5

2 Guttur 1 0 5 6 0 0 12

3 Nelamangala 0 4 5 0 0 0 9

4 Hoody 0 3 2 0 0 0 5

5 BTPS 0 0 0 2 0 0 2

6 JSW 0 0 0 1 0 0 1

7 Kadakola 0 0 0 1 0 0 1

8 Konaje 0 0 0 1 0 0 1

9 Sedam 0 0 0 1 0 0 1

10 Yerrandanahally 0 0 0 1 0 0 1

11 Bellary 0 0 0 1 0 0 1

12 Supa 2 0 0 0 0 0 2

13 Ambewadi 0 0 0 2 0 0 2

14 Chikkodi 0 0 0 2 0 0 2

TOTAL 3 7 12 23 0 0 45

Sl.No.

SML (new)Sl.No. Location Name

No. of meters

Total

A-Type

SML(old) L&T L&T

Total

No. of meters

L&T

Location Name

SML

A-Type

SML(old)

SML (new)

L&T

B-Type

B-Type

(SMLold)

SML


(G) Kerala State Electricity Board

2000

series

4000

series

1 Edamon(new) 0 0 0 2 0 0 2

2 Moozhiyar 0 0 0 1 0 0 1

3 Idukki 0 0 0 0 0 1 1

4 Kaniampetta 0 0 0 1 0 0 1

5 Manjeswar 0 0 0 1 0 0 1

6 Parasala 0 0 0 1 0 0 1

TOTAL 0 0 0 4 0 1 7

(H) TAN TRANSCO

2000

series

4000

series

1 Alamathy 3 2 1 0 0 0 6

2 S.P.Koil 0 0 0 2 0 0 2

3 Arni 0 0 0 1 0 0 1

4 Acharapakkam 0 0 0 1 0 0 1

5 Theni 0 0 0 0 1 0 1

6 Udumalpet 0 0 0 0 1 0 1

7 Uppatti 1 0 0 0 0 0 1

8 Hosur 0 0 0 1 0 0 1

9 Thiruvalam 0 0 0 0 1 0 1

10 Gummidipundi 0 0 0 1 0 0 1

11 Kuzhithurai 0 0 0 1 0 0 1

TOTAL 4 2 1 7 3 0 17



No. of meters

Total

A-Type

SML(old)

SML (new)

L&T SML L&T

B-Type

Total

A-Type

SML(old)

SML (new)

L&T SML

B-Type

(SMLold)

No. of meters

L&T


(I) Puducherry Electricity Department

2000

series

4000

series

1 Villianur 0 0 0 1 0 0 1

2 Bahur 0 0 0 1 0 0 1

3 Yanam 0 0 0 1 0 0 1

TOTAL 0 0 0 3 0 0 3

(J) Goa Electricity Department

2000

series

4000

series

1 Xeldem 0 0 0 1 0 0 1

2 Ponda 2 0 0 1 0 0 3

TOTAL 2 0 0 2 0 0 4

(K) Powergrid

2000

series

4000

series

1 Gazuwaka HVDC 0 0 0 2 0 0 2

2 Kolar HVDC 0 0 0 1 0 0 1

3 Talcher HVDC 0 1 5 0 0 0 6

TOTAL 0 1 5 3 0 0 9


No. of meters

Total

A-Type

SML(old)

SML (new)

L&T

B-Type

(SMLold)

SML

Total

A-Type

SML(old)

SML (new)

L&T

B-Type

(SMLold)

SML L&T


No. of meters


No. of meters

SML L&T

Total

A-Type

SML(old)

SML (new)

L&T

B-Type

(SMLold)

L&T


(L) Central Transmission Utility (POWERGRID)

2000

series

4000

series

1 Gazuwaka 0 0 0 17 0 0 17

2 Vijayawada 0 6 6 6 0 0 18

3 Khammam 0 0 12 0 0 0 12

4 Hyderabad 0 0 0 14 0 0 14

5 Nagarjunasagar 0 0 0 13 0 0 13

6 Cuddapah 0 0 0 5 0 0 5

7 Gooty 0 0 0 9 0 0 9

8 Nellore 0 0 6 0 0 0 6

9 Warangal 0 0 0 8 0 0 8

10 Somanahalli 0 0 0 9 0 0 9

11 Munirabad 0 0 0 6 0 0 6

12 Hiriyur 0 0 5 2 0 0 7

13 Kolar 0 0 0 18 0 0 18

14 Narendra 0 2 2 2 0 0 6

15 Mysore 0 4 0 0 0 0 4

16 Hassan 0 0 0 6 0 0 6

17 Trichur 0 0 0 4 0 0 4

18 Trivandrum 0 0 4 2 0 0 6

19 Sriperumbudur 0 0 0 7 0 0 7

20 Salem 0 0 0 6 0 0 6

21 Udumalpet 0 0 0 7 0 0 7

22 Trichy 0 0 0 7 1 0 8

23 Madurai 0 0 0 7 0 0 7

24 Hosur 0 0 0 5 0 0 5

25 Thirunelveli 0 0 0 10 0 0 10

26 Pugalur 0 0 0 8 0 0 8

27 Kalivanthapattu 0 0 0 6 0 0 6

28 Karaikudi 0 0 0 6 0 0 6

29 Arasur 0 0 0 6 0 0 6

30 Pondicherry 0 0 0 6 0 0 6

TOTAL 0 12 35 202 1 0 250


No. of meters

Total

A-Type

SML(old)

SML (new)

L&T

B-Type

(SMLold)

SML L&T


(M) Western Region **

2000

series

4000

series

1 Bhadravati 0 1 3 0 0 0 4

2Master Freq.

Meter (Korba)0 1 0 0 0 0 1

TOTAL 0 2 3 0 0 0 5

(N) Eastern Region **

2000

series

4000

series

1 Jeypore 0 0 0 2 0 0 2

2 Talcher HVDC 0 1 5 0 0 0 6

3Master Freq.

Meter (Durgapur)0 0 0 1 0 0 1

TOTAL 0 1 5 3 0 0 9

** Meters of importance to Southern Region

SML (new)

L&T

Sl.No.


No. of meters B-Type

(SMLold)

Location Name

No. of meters B-Type

(SMLold)

SML L&T

SML L&T

A-Type

Total

SML(old)

Total

A-Type

SML(old)

SML (new)

L&T


2.3 LIST OF SPECIAL ENERGY METERS INSTALLED

IN SOUTHERN REGION

(A) NATIONAL THERMAL POWER CORPORATION

Sl. No. Location Id. Meter Sl. No CT-

Ratio

PT-

Ratio

Place of Installation Category Make

1) Ramagundam STPS

1 AP-07 NP-5542-A 500 3636 400kV side of ICT-I M L&T

2 AP-09 NP-5514-A 500 3636 400kV side of ICT-II M L&T

3 AP-11 NP-5505-A 500 3636 400kV side of ICT-III M L&T

4 AP-13 NP-5520-A 500 3636 400kV side of ICT-IV M L&T

5 AP-15 NP-4121-A 500 3636 400kV side of ICT-V M SMLnew

6 RM-11 NP-4082-A 1000 3636 400kV Bhadravati Line-I M SMLnew

7 RM-12 NP-4080-A 1000 3636 400kV Bhadravati Line-II M SMLnew

8 RM-13 NP-5541-A 1000 3636 400kV N'Sagar Line-I M L&T

9 RM-14 NP-5538-A 1000 3636 400kV N'Sagar Line-II M L&T

10 RM-15 NP-5537-A 1000 3636 400kV Gajwel Line M L&T

11 RM-16 NP-5546-A 1000 3636 400kV Hyderabad-II Line M L&T

12 RM-17 NP-5545-A 1000 3636 400kV Warangal Line M L&T

13 RM-18 NP-5536-A 1000 3636 400kV Hyderabad-III Line M L&T

14 RM-19 NP-5544-A 1000 3636 400kV Hyderabad- IV Line - M L&T

15 RM-20 NP-5512-A 1000 3636 400kV Ditchipally line M L&T

16 RM-47 NP-4078-A 1000 3636 400kV side of GT-7 M SMLnew

17 RM-49 NP-4079-A 500 3636 400kV side of TT-4 M SMLnew

18 RM-28 NP-0115-A 500 3636 400 kV side of ICT-I C SMLold

19 RM-29 NP-4120-A 500 3636 400 kV side of ICT-II C SMLnew

20 RM-30 NP-0160-A 500 3636 400 kV side of ICT-III C SMLold

21 RM-31 NP-0170-A 500 3636 400 kV side of ICT-IV C SMLold

22 RM-32 NP-0222-A 500 3636 400 kV side of ICT-V C SMLold

23 RM-21 NP-4083-A 1000 3636 400kV Bhadravati Line-I C SMLnew

24 RM-22 NP-4081-A 1000 3636 400kV Bhadravati Line-II C SMLnew

25 RM-23 NP-0212-A 1000 3636 400kV N'Sagar Line-I C SMLold

26 RM-24 NP-0216-A 1000 3636 400kV N'Sagar Line-II C SMLold

27 RM-25 NP-0111-A 1000 3636 400kV Gajwel Line C SMLold

28 RM-26 NP-0255-A 1000 3636 400kV Hyderabad-II Line C SMLold

29 RM-27 NP-0840-A 1000 3636 400kV Warangal Line C SMLold

30 RM-38 NP-0186-A 1000 3636 400kV Hyderabad-III Line C SMLold

31 RM-39 NP-0109-A 1000 3636 400kV Hyderabad-IV Line C SMLold

32 RM-40 NP-0249-A 1000 3636 400kV Ditchipally line C SMLold

33 AP-08 NP-0154-A 1000 1200 132kV side of ICT-I S SMLold

34 AP-10 NP-6160-A 1000 1200 132kV side of ICT-II S L&T

35 AP-12 NP-0237-A 1000 2000 220kV side of ICT-III S SMLold

36 AP-14 NP-0238-A 1000 2000 220kV side of ICT-IV S SMLold

37 AP-16 NP-0269-A 1000 2000 220kV side of ICT-V S SMLold

Category : M- Main meter, C- Check meter, S- Standby meter


38 RM-01 NP-0114-A 500 3636 400kV side of GT-1 S SMLold






44 RM-07 NP-0258-A 500 3636 400kV side of TT-1 S SMLold



47 SR-MF NP-0239-A Master Frequency Meter M SMLold

Total no. of SEMs 47

2) Talcher STPP Stage-II


Ratio

PT-

Ratio


1 TL-14 NP-5066-A 2000 3636 400 kV Inter connector-1 with ER M L&T

2 TL-15 NP-5076-A 2000 3636 400 kV Inter connector-2 with ER M L&T

3 TL-31 NP-4094-A 2000 3636 400 kV HVDC feeder-1 M SMLnew




7 TL-16 NP-5069-A 2000 3636 400 kV Inter connector-1 with ER C L&T

8 TL-17 NP-5070-A 2000 3636 400 kV Inter connector-2 with ER C L&T

9 TL-41 NP-4006-A 2000 3636 400 kV HVDC feeder-1 C SMLnew




13 TL-45 NP-4009-A 1000 3636 400 kV side of GT-3 S SMLnew




17 TL-57 NP-4064-A 100 3636 400 kV side of SUT-2 (for U-3&4) S SMLnew

18 TL-59 NP-4066-A 100 3636 400 kV side of SUT-3 (for U-5&6) S SMLnew

19 TL-46 NP-4038-A 1000 3636 400 kV side of GT-3 C SMLnew




23 TL-58 NP-4065-A 100 3636400 kV side of SUT-2 (for U-3&4)

C SMLnew

24 TL-60 NP-4067-A 100 3636400 kV side of SUT-3 (for U-5&6)

C SMLnew




(B) NEYVELI LIGNITE CORPORATION

1) Neyveli Thermal Station II

Meters installed by POWERGRID


Ratio

PT-

Ratio


1 NV-01 NP-0175-A 800 2000 230kV side of GT-1 M SMLold







8 NV-08 NP-0254-A 150 2000 230kV side of ST-1 M SMLold




12 NV-12 NP-0279-A 300 2000 230kV side of MF-1 M SMLold




16 NV-16 NP-0180-A 800 2000 230kV side of ICT-1 S SMLold

17 NV-17 NP-0265-A 800 2000 230kV side of ICT-2 S SMLold

18 PO-01 NP-0132-A 800 2000 230kV Villianur Line S SMLold

19 PO-03 NP-0266-A 800 2000 230kV Bahur Line S SMLold

20 TN-21 NP-0141-A 800 2000 230kV STCMS Line S SMLold

21 TN-22 NP-0165-A 800 2000 230kV Villupuram Line S SMLold

22 TN-23 NP-0228-A 800 2000 230kV Kadalangudi Line S SMLold

23 TN-24 NP-0135-A 800 2000 230kV TNEB (Tie) -1 Line S SMLold

24 TN-25 NP-0181-A 800 2000 230kV TNEB (Tie) -2 Line S SMLold

25 SR-17 NP-0193-A 1000 3478 400kV Pondicherry Line S SMLold

26 SR-18 NP-0119-A 1000 3478 400kV Salem Line-I S SMLold

27 SR-19 NP-0143-A 1000 3478 400kV Salem Line-II S SMLold

28 SR-20 NP-0148-A 1000 3478 400kV Trichy Line S SMLold

29 SR-21 NP-0172-A 1000 3478 400kV TPS-I Exp. feeder S SMLold

Meters installed by NLC


Ratio

PT-

Ratio


30 NL-01 NL-0053-A 800 2000 230kV side of GT-1 M L&T







37 NL-08 NL-0050-A 150 2000 230kV side of ST-1 M L&T






41 NL-12 NL-0063-A 300 2000 230kV side of MF-1 M L&T




45 NL-16 NL-0072-A 800 2000 230kV side of ICT-1 S L&T

46 NL-17 NL-0073-A 800 2000 230kV side of ICT-2 S L&T

47 PN-01 NL-0071-A 800 2000 230kV Villianur Line S L&T

48 PN-03 NL-0016-A 800 2000 230kV Bahur Line S L&T

49 TN-41 NL-0067-A 800 2000 230kV STCMS Line (TNEB) M L&T

50 TN-42 NL-0052-A 800 2000 230kV Villupuram Line (TNEB) M L&T

51 TN-43 NL-0066-A 800 2000 230kV Kadalangudi Line M L&T

52 TN-44 NL-0069-A 800 2000 230kV TNEB (Tie) -1 Line M L&T

53 TN-45 NL-0070-A 800 2000 230kV TNEB (Tie) -2 Line M L&T

54 RS-17 NL-0074-A 1000 3478 400kV Pondicherry Line S L&T

55 RS-18 NL-0075-A 1000 3478 400kV Salem Line-I S L&T

56 RS-19 NL-0076-A 1000 3478 400kV Salem Line-II S L&T

57 RS-20 NL-0077-A 1000 3478 400kV Trichy Line S L&T

58 RS-21 NL-0078-A 1000 3478 400kV TPS-I Exp. feeder (Tie-3) S L&T

59 RS-22 NL-0048-A 1000 3478 400kV Pugulur Line-I S L&T

60 RS-23 NL-0031-A 1000 3478 400 kV TPS II expn feeder (Tie) - 4 S L&T

61 NL-21 NL-0021-A 800 2000 230kV side of GT-1 C L&T







68 NL-28 NL-0027-A 150 2000 230kV side of ST-1 C L&T




72 NL-32 NL-0012-A 300 2000 230kV side of MF-1 C L&T




76 NL-36 NL-0020-A 800 2000 230kV side of ICT-1 C L&T

77 NL-37 NL-0104-A 800 2000 230kV side of ICT-2 C L&T

78 PN-21 NL-0015-A 800 2000 230kV Villianur Line C L&T

79 PN-23 NL-0010-A 800 2000 230kV Bahur Line C L&T

80 TN-61 NL-0011-A 800 2000 230kV STCMS Line (TNEB) C L&T



81 TN-62 NL-0014-A 800 2000 230kV Villupuram Line-I (TNEB) C L&T

82 TN-63 NL-0013-A 800 2000 230kV Kadalangudi Line C L&T

83 TN-64 NL-0101-A 800 2000 230kV TNEB (Tie) -1 Line C L&T

84 TN-65 NL-0008-A 800 2000 230kV TNEB (Tie) -2 Line C L&T

85 RS-37 NL-0006-A 1000 3478 400kV Sriperambadur Line C L&T

86 RS-38 NL-0003-A 1000 3478 400kV Salem Line-I C L&T

87 RS-39 NL-0004-A 1000 3478 400kV Salem Line-II C L&T

88 RS-40 NL-0005-A 1000 3478 400kV Trichy Line C L&T

89 RS-41 NL-0002-A 1000 3478 400kV TPS-I Exp. feeder (Tie-3) C L&T


2) Neyveli TPS-I Expansion


Ratio

PT-

Ratio


1 NE-01 GE-0007-A 500 3636 400kV side of GT-1 M SMLnew

2 NE-02 GE-0005-A 500 3636 400kV side of GT-2 M SMLnew

3 NE-13 NL-0201-A 200 2200 220 kV side of SUT 6T M SMLnew

4 NE-15 NL-0203-A 200 2200 220 kV side of SUT 7T M SMLnew

5 NE-03 GE-0008-A 500 3636 400kV side of GT-1 C SMLnew

6 NE-04 GE-0006-A 500 3636 400kV side of GT-2 C SMLnew

7 NE-14 NL-0202-A 200 2200 220 kV side of SUT 6T C SMLnew

8 NE-16 NL-0204-A 200 2200 220 kV side of SUT 7T C SMLnew

9 NE-05 GE-0003-A 1000 3636 400kV Neyveli TS-II feeder S SMLnew

10 NE-06 GE-0001-A 1000 3636 400kV Trichy Line S SMLnew

11 NE-09 GE-0009-A 1200 300 33 kV side of SUT 6T M SMLnew

12 NE-11 GE-0011-A 1200 300 33 kV side of SUT 7T M SMLnew

13 NE-07 GE-0004-A 1000 3636 400kV Neyveli TS-II feeder C SMLnew

14 NE-08 GE-0002-A 1000 3636 400kV Trichy Line C SMLnew


3) Neyveli TPS-II Expansion


Ratio

PT-

Ratio


1 NE-21 NP-5577-A 500 3636 400kV side of GT-1 M L&T

2 NE-22 NP-5557-A 500 3636 400kV side of GT-1 S L&T

3 NE-23 NP-5558-A 500 3636 400kV side of GT-2 M L&T

4 NE-24 NP-5559-A 500 3636 400kV side of GT-2 S L&T

5 NE-25 NP-5560-A 1000 3636 400kV side of TS-2 Feeder M L&T

6 NE-26 NP-5561-A 1000 3636 400kV side of TS-2 Feeder S L&T

7 NE-27 NP-5706-A 1000 3636 400kV side of Pugulur M L&T

8 NE-28 NP-5707-A 1000 3636 400kV side of Pugulur S L&T

Total no. of SEMs 8



(C) NUCLEAR POWER CORPORATION

1) Madras Atomic Power StationSl. No. Location Id. Meter Sl. No CT-

Ratio

PT-

Ratio


1 MA-01 NP-4020-A 600 2000 230kV SP'Koil-1 feeder M SMLnew

2 MA-02 NP-4021-A 600 2000 230kV SP'Koil-2 feeder M SMLnew

3 MA-03 NP-4022-A 600 2000 230kV Arni feeder M SMLnew

4 MA-04 NP-4023-A 600 2000 230kV Acharapakkam feeder M SMLnew

5 MA-11 NP-4024-A 600 2000 230kV SP'Koil-1 feeder C SMLnew

6 MA-12 NP-4025-A 600 2000 230kV SP'Koil-2 feeder C SMLnew

7 MA-13 NP-4026-A 600 2000 230kV Arni feeder C SMLnew

8 MA-14 NP-4027-A 600 2000 230kV Acharapakkam feeder C SMLnew

Total no. of SEMs 8

2) Kaiga Generating Station


Ratio

PT-

Ratio


1 KG-01 NP-4018-A 600 2000 220kV side of GT-1 M SMLnew


3 KG-03 NP-4013-A 125 2000 220kV side of SUT-I M SMLnew

4 KG-04 NP-4016-A 125 2000 220kV side of SUT-II M SMLnew

5 KG-07 NP-4075-A 125 2000 220kV side of SUT-III M SMLnew

6 KG-08 NP-4059-A 125 2000 220kV side of SUT-IV M SMLnew

7 KG-11 NP-4011-A 600 2000 220kV side of GT-1 C SMLnew


9 KG-13 NP-4012-A 125 2000 220kV side of SUT-I C SMLnew

10 KG-14 NP-4030-A 125 2000 220kV side of SUT-II C SMLnew

11 KG-17 NP-4076-A 125 2000 220kV side of SUT-III C SMLnew

12 KG-18 NP-4060-A 125 2000 220kV side of SUT-IV C SMLnew



15 KG-06 NP-6184-A 1000 3636 400kV side of GT-4 M L&T

16 KG-16 NP-5599-A 1000 3636 400kV side of GT-4 C L&T

17 KG-21 NP-4017-A 1000 3636 400kV Guttur Line-I S SMLnew

18 KG-22 NP-4014-A 1000 3636 400kV Guttur Line-II S SMLnew

19 KG-23 NP-4010-A 800 2000 220kV Kadra Line S SMLnew

20 KG-24 NP-4015-A 800 2000 220kV Kodasalli Line S SMLnew

21 KG-25 NP-4128-A 1000 3636 400kV Narendra Line-I S SMLnew

22 KG-26 NP-4129-A 1000 3636 400kV Narendra Line-II S SMLnew


(D) LANCO KONDAPALLI

1 AT-09 NP-6158-A 1000 3636 400kV Vijayawada Line-I M L&T

2 AT-12 NP-6159-A 1000 3636 400kV Vijayawada Line-II M L&T

Total no. of SEMs 2



(E) APTRANSCO


Ratio

PT-

Ratio


400kV Stations

1) Mamidipalli

1 AP-72 NP-5516-A 1000 3636 400kV Hyderabad Line M L&T

2 AP-76 NP-5517-A 1000 3636 400kV Srisailam Line-II S L&T

3 AP-78 NP-5518-A 1000 3636 400kV Khammam Line-1 S L&T

4 AP-80 NP-5524-A 1000 3636 400kV Khammam Line-2 S L&T

Total no. of SEMs 4

2) Kurnool

5 AP-86 NP-4086-A 1000 3636 400kV Hyderabad Line M SMLnew

6 AP-88 NP-4089-A 1000 3636 400kV Gooty Line M SMLnew

7 AP-74 NP4084-A 1000 3636 400kV Srisailam Line S SMLnew

Total no. of SEMs 3

3) Mehaboobnagar

8 AP-59 NP-1471-A 1000 3636 400kV N'Sagar Line M L&T

9 AP-60 NP-1472-A 1000 3636 400kV Raichur Line M L&T

Total no. of SEMs 2

4) Vemagiri

10 AP-62 NP-5493-A 1000 3636 400 kV Vijayawada Line-I S L&T

11 AP-64 NP-5492-A 1000 3636 400 kV Vijayawada Line-II S L&T

12 AP-45 NP-5490-A 1000 3636 400 kV Vijayawada Line-III M L&T

13 AP-46 NP-5508-A 1000 3636 400 kV Vijayawada Line-IV M L&T

14 AP-47 NP-5498-A 1000 3636 400kV Gazuwaka Line-I M L&T

15 AP-48 NP-5494-A 1000 3636 400kV Gazuwaka Line-I M L&T

Total no. of SEMs 6

5) Chithoor

16 AP-65 NP-5499-A 1000 3636 400 kV Cuddapah Line M L&T

17 AP-66 NP-5515-A 1000 3636 400 kV Sriperambadur Line M L&T

Total no. of SEMs 2

6) Ditchipally

18 AP-49 NP-5523-A 1000 3636 400 kV Ramagundam Line S L&T

Total no. of SEMs 1

7) Gajwel

19 AT-02 NP-5528-A 1000 3636 400 kV Ramagundam Line M L&T

20 AT-01 NP-5522-A 1000 3636 400 kV Hyderabad Line M L&T

Total no. of SEMs 2

8) Malkaram

21 AT-17 NP-5526-A 1000 3636 400 kV Ramagundam Line M L&T

22 AT-18 NP-6163-A 1000 3636 400 kV Hyderabad Line M L&T

Total no. of SEMs 2

9) Boopalapally

23 AT-15 NP-5630-A 1000 3636 400 kV Warangal-Line-I S L&T

24 AT-16 NP-5631-A 1000 3636 400 kV Warangal-Line-II S L&T

Total no. of SEMs 2



Inter State Lines from AP

10) Tandur

25 AP-51 NP-5507-A 800 2000 220kV Sedam Line M L&T

11) Gooty

26 AP-52 NP-6164-A 600 2000 220kV Bellary Line M L&T

12) Chittoor

27 AP-53 NP-5485-A 600 2000 220kV Thiruvelam Line M L&T

13) Sulurpet

28 AP-54 NP-5519-A 400 2000 220kV Gummidipundi Line M L&T

14) Araku

29 AP-55 NP-0166-A 300 1200 132kV Machkund-1 Line M SMLold

30 AP-56 NP-0263-A 300 1200 132kV Machkund-2 Line M SMLold

15) Upper Sileru

31 AP-57 NP-0126-A 400 2000 220kV Balimela Line M SMLold

16) Lower Sileru

32 AP-58 NP-0267-A 400 2000 220kV Barsur Line-I (HVDC) M SMLold

17) Kakinada

33 PO-05 NP-06162-A 150 1200 132kV Yanam Line M L&T

9


(F) KPTCL


Ratio

PT-

Ratio


400kV Stations

1) Raichur

1 CK-21 NP-5503-A 1000 3636 400kV Mehaboobnagar Line M L&T

2 CK-23 NP-5532-A 1000 3636 400kV Munirabad Line M L&T

3 CK-25 NP-5534-A 1000 3636 400kV BTPS Line M L&T

4 CK-64 NP-5488-A 1000 3636 400KV Gooty Line I M L&T

5 CK-65 NP-5504-A 1000 3636 400KV Gooty Line II M L&T

Total no. of SEMs 5

2) Guttur

6 CK-07 NP-4057-A 500 3636 400kV side of ICT -I M SMLnew

7 CK-19 NP-4114-A 500 3636 400kV side of ICT -II M SMLnew

8 CK-26 NP-4061-A 1000 3636 400kV JSW Line S SMLnew

9 CK-28 NP-0200-A 1000 3636 400kV Hiriyur Line-I S SMLold

10 CK-34 NP-4051-A 1000 3636 400kV Hiriyur Line-II S SMLnew

11 CK-08 NP-4062-A 900 2000 220kV side of ICT-I S SMLnew

12 CK-20 NP - 5688A 900 2000 220kV side of ICT-II S L&T

13 CK-76 NP-5664-A 1000 3636 400kV Narendra line -I M L&T

14 CK-77 NP-5663-A 1000 3636 400kV Narendra line -II M L&T

15 CK-74 NP-5612-A 1000 3636 400kV Kaiga line -I M L&T

16 CK-75 NP-5613-A 1000 3636 400kV Kaiga line -II M L&T

17 CK-80 NP-5690-A 1000 3636 400kV Munirabad line M L&T




3) Nelamangala

18 CK-29 NP-2492-A 1000 3636 400kV Hiriyur Line-I M SMLnew

19 CK-35 NP-4052-A 1000 3636 400kV Hiriyur Line-II M SMLnew

20 CK-36 NP-4053-A 1000 3636 400kV Somanahalli S/C Line M SMLnew

21 CK-48 NP-4055-A 1000 3636 400kV Somanahalli D/C Line I M SMLnew

22 CK-49 NP-4054-A 1000 3636 400kV Somanahalli D/C Line II M SMLnew

23 CK-30 NP-2493-A 1000 3636 400kV Hoody Line M SMLnew

24 CK-38 NP-4113-A 1000 3636 400kV Gooty Line M SMLnew

25 CK-44 NP-2482-A 1000 3636 400kV Mysore Line I M SMLnew

26 CK-45 NP-2483-A 1000 3636 400kV Mysore Line II M SMLnew

Total no. of SEMs 9

4) Hoody

27 CK-09 NP-2496-A 800 3636 4000kV side of ICT-I M SMLnew

28 CK-13 NP-4029-A 800 3636 400kV side of ICT-II M SMLnew

29 CK-10 NP-2499-A 1400 2000 220kV side of ICT-I S SMLnew

30 CK-14 NP-4028-A 1400 2000 220kV side of ICTII S SMLnew

31 CK-31 NP-2494-A 1000 3636 400kV Nelamangala Line S SMLnew

Total no. of SEMs 5

5) BTPS

32 CK-78 NP-5500-A 1000 3636 400kV JSW Line S L&T

33 CK-79 NP-6165-A 1000 3636 400kV Raichur Line S L&T

Total no. of SEMs 2

6) JSW

34 CK-39 NP-5689-A 1000 3636 400kV Guttur Line S L&T

Total no. of SEMs 1

7) Kadakola

35 CK-51 NP-5624-A 600 2000 220kV Kaniampetta Line M L&T

8) Konaje

36 CK-52 NP-5565-A 200 1000 110kV Manjeswar Line M L&T

9) Sedam

37 CK-53 NP-5391-A 800 2000 220kV Tandur Line M L&T

10) Yerandahalli

38 CK-54 NP-5702-A 600 2000 220kV Hosur Line M L&T

11) Bellary

39 CK-55 NP-5388-A 600 2000 220kV Gooty Line M L&T

12) Supa

40 CK-56 NP-0121-A 300 1000 110kV Ponda-1 Line M SMLold

41 CK-57 NP-0120-A 300 1000 110kV Ponda-2 Line M SMLold

13) Ambewadi

42 CK-58 NP-5600-A 800 2000 220kV Xeldem Line M L&T

43 CK-59 NP-5598-A 800 2000 220kV Ponda Line M L&T

14) Chikkodi

44 CK-60 NP-5551-A 600 2000 220kV Talengene (Kolhapur) Line M L&T

45 CK-61 NP-5597-A 600 2000 220kV Mushtungi (Kolhapur) Line M L&T

11




(G) KSEB


Ratio

PT-

Ratio


1) Edamon *

1 KL-11 NP-5621-A 800 2000 220kV Tirunelveli line-I M L&T

2 KL-12 NP-5576-A 800 2000 220kV Tirunelveli line-II M L&T

Inter State Lines from KSEB

2) Moozhiyar

3 KL-51 NP-6035-A 800 2000 220kV Theni Line M L&T

3) Idukki

4 KL-53 NP-5590-B 120 2000 220kV Udumalpet Line M L&T

4) Kaniampetta

5 KL-55 NP-5564-A 800 2000 220kV Kadakola Line M L&T

5) Manjeswar

6 KL-56 NP-5566-A 200 1000 110kV Konaje Line M L&T

6) Parasala

7 KL-58 NP-5639-A 100 1000 110kV Kuzhithurai Line M L &T

Total no. of SEMs 7

(H) TNEB


Ratio

PT-

Ratio


1) Alamathy

1 TN-35 NP-0182-A 500 3636 400kV side of ICT-I M SMLold

2 TN-36 NP-4045-A 1200 1000 110kV side of ICT-I S SMLnew

3 TN-37 NP-0127-A 1000 3636 400kV side of ICT-II M SMLold

4 TN-38 NP-2480-A 1600 2091 230kV side of ICT-II S SMLnew

5 TN-39 NP-0144-A 1000 3636 400kV side of ICT-III M SMLold

6 TN-40 NP-2537-A 1600 2091 230kV side of ICT-III S SMLnew

2) S.P.Koil

7 TN-26 NP-6176-A 1200 2091 230kV Kalpakkam-1 Line S L&T

8 TN-27 NP-6177-A 800 2091 230kV Kalpakkam-2 Line S L&T

3) Arni

9 TN-28 NP-6174-A 600 2091 230kV Kalpakkam Line S L&T

4) Acharapakkam

10 TN-29 NP-6175-A 600 2091 230kV Kalpakkam Line S L&T

Inter State Lines from TNEB

5) Theni

11 TN-51 NP-0601-B 120 2091 230kV Moozhiyar Line M SMLold

6) Udumalpet

12 TN-53 NP-0611-B 120 2091 230kV Idukki Line M SMLold

7) Uppatti ( Not in service)

13 TN-54 NP-0145-A 100 600 66kV Koothamunda Line M SMLold

8) Hosur

14 TN-55 NP-6036-A 600 2091 230kV Yerandahalli Line M L&T

9) Thiruvalam

15 TN-56 NP-0607-B 120 2091 230kV Chitthoor Line M SMLold

10) Gummidipundi

16 TN-57 NP-6173-A 600 2091 230kV Sullurpet Line M L&T

11) Kuzhithurai

17 TN-58 NP-5640-A 100 1000 110kV Parasala Line M L &T


* 400 kv Substation charged at 220kv



(I) PUDUCHERRY


Ratio

PT-

Ratio


1) Villainur

1 PO-02 NP-5622-A 600 2091 230kV Neyveli Line M L&T

2) Bahur

2 PO-04 NP-5623-A 600 2091 230kV Neyveli Line M L&T

3) Yanam

3 PO-06 NP-6161-A 200 1200 132kV Kakinada Line M L&T

Total no. of SEMs 3

(J) GOA


Ratio

PT-

Ratio


1) Xeldem

1 GO-01 NP-5531-A 400 2000 220kV Ambewadi Line M L&T

2) Ponda

2 GO-02 NP-5521-A 400 2000 220kV Ambewadi Line M L&T

3 GO-03 NP-0194-A 300 1000 110kV Supa-1 Line M SMLold

4 GO-04 NP-0171-A 300 1000 110kV Supa-2 Line M SMLold

Total no. of SEMs 4



(K) PG-HVDC


Ratio

PT-

Ratio


1) Gazuwaka HVDC

1 PG-01 NP-5395-A 50 300 33kV side of Aux.Transformer-I M L&T

2 PG-03 NP-5380-A 40 300 33kV side of Aux.Transformer-II M L&T

2) Kolar HVDC

3 PG-05 NP-5547-A 200 300 33kV side of Aux. Transformer M L&T

3) Talcher HVDC

4 PG-07 NP-4035-A 150 100 11 kV side of Aux.Transformer-I M SMLnew

5 PG-09 NP-4039-A 150 100 11 kV side of Aux.Transformer-II M SMLnew

6 PG-11 NP-4202-A 150 100 11 kV side of Aux.Transformer-III M SMLnew

7 PG-08 NP-4036-A 3000 3.77 415V side of Aux.Transformer-I S SMLnew

8 PG-10 NP-4008-A 3000 3.77 415V side of Aux.Transformer-II S SMLnew

9 PG-12 NP-2363-A 3000 3.77 415V side of Aux.Transformer-III S SMLnew

Total no. of SEMs 9*

* 3 Nos. of SEMs (Gazuwaka and Kolar) are directly included in Item No.(L)

* 6 Nos. of SEMs (Talcher) are included in item No.(N)

(L) Central Transmission Utility (POWERGRID)


Ratio

PT-

Ratio


1) Gazuwaka (Visakhapattanam)

1 DC-03 NP-5378-A 2000 3636 HVDC East Bus - I M L&T

2 DC-04 NP-5379-A 2000 3636 HVDC East Bus -II M L&T



5 AP-81 NP-5364-A 1000 3636 400kV Kalapaaka Line-1 (AP) M L&T

6 AP-82 NP-5365-A 1000 3636 400kV Kalapaaka Line-2 (AP) M L&T

7 PG-01 NP-5395-A 50 300 33kV side of Aux.Transformer-I M L&T

8 PG-03 NP-5380-A 40 300 33kV side of Aux.Transformer-II M L&T

9 DC-01 NP-5376-A 2000 3636 400kV South bus-I of Pole-I S L&T

10 DC-02 NP-5377-A 2000 3636 400kV South bus-II of Pole-I S L&T

11 AP-02 NP-5368-A 1000 2000 220kV side of ICT-I S L&T


13 DC-13 NP-5362-A 1000 3636 400kV East side of Pole-II S L&T

14 DC-14 NP-5361-A 1000 3636 400kV South side of Pole-II S L&T

15 SR-25 NP-5363-A 1000 3636 400kV Vijayawada Line-I S L&T

16 SR-78 NP-5497-A 1000 3636 400kV Vemagiri Line-I S L&T

17 SR-79 NP-5496-A 1000 3636 400kV Vemagiri Line-II S L&T




2) Vijayawada

18 AP-03 NP-2479-A 1000 3636 400kV side of ICT-I M SMLnew


20 AP-73 NP-2485-A 1000 3636 400kV VTPS IV Line-I M SMLnew

21 AP-75 NP-2532-A 1000 3636 400kV VTPS IV Line-II M SMLnew

22 AP-61 NP-2487-A 1000 3636 400 kV Vemagiri line-I (AP) S SMLnew

23 AP-63 NP-2488-A 1000 3636 400 kV Vemagiri line-II (AP) S SMLnew

24 AP-04 NP-4122-A 1000 2000 220kV side of ICT I S SMLnew


26 SR-01 NP-2490-A 1000 3636 400kV Gazuwaka Line-I S SMLnew

27 SR-72 NP-4104-A 1000 3636 400kV Gazuwaka Line-II S SMLnew

28 SR-73 NP-4105-A 1000 3636 400kV Gazuwaka Line-III S SMLnew

29 SR-02 NP-4124-A 1000 3636 400kV Khammam Line S SMLnew

30 SR-68 NP-4077-A 1000 3636 400kV Nellore Line-I S SMLnew

31 SR-69 NP-4123-A 1000 3636 400kV Nellore Line-II S SMLnew

32 AT-07 NP-5533-A 1000 3636 400kV Lanco Line-I M L&T

33 AT-08 NP-5627-A 1000 3636 400kV Lanco Line-I C L&T

34 AT-10 NP-5543-A 1000 3636 400kV Lanco Line-II M L&T

35 AT-11 NP-5489-A 1000 3636 400kV Lanco Line-II C L&T


3) Khammam

36 AP-05 NP-4109-A 500 3636 400kV side of ICT -I M SMLnew

37 AP-41 NP-4102-A 600 3636 400kV side of ICT -II M SMLnew

38 AP-83 NP-4107-A 1000 3636 400kV Kalapaaka Line-1 (AP) M SMLnew

39 AP-84 NP-4106-A 1000 3636 400kV Kalapaaka Line-2 (AP) M SMLnew

40 AP-77 NP-4112-A 1000 3636 400kV Mamidipalli Line-1 (AP) M SMLnew

41 AP-79 NP-4111-A 1000 3636 400kV Mamidipalli Line-2 (AP) M SMLnew

42 AP-06 NP-4110-A 1000 2000 220kV side of ICT -I S SMLnew

43 AP-42 NP-4103-A 1000 2000 220kV side of ICT -II S SMLnew

44 SR-26 NP-4058-A 1000 3636 400kV Vijayawada Line S SMLnew

45 SR-27 NP-4108-A 1000 3636 400kV Warangal Line S SMLnew

46 SR-71 NP-4033-A 1000 3636 400kV N'Sagar Line S SMLnew

47 PG-13 NP-4088-A 50 300 33 kV side of Aux. Transformer S SMLnew


4) Hyderabad




51 AP-71 NP-5501-A 1000 3636 400kV Mamidipalli Line (AP) S L&T

52 AP-85 NP-5502-A 1000 3636 400kV Kurnool Line (AP) S L&T



55 AP-22 NP-1464-A 1000 2000 220kV side of ICT-III S L&T

56 SR-03 NP-1449-A 1000 3636 400kV N'Sagar Line S L&T

57 SR-04 NP-1456-A 1000 3636 400kV Gajwel Line-I S L&T

58 SR-05 NP-1457-A 1000 3636 400kV Ramagundam Line-II S L&T

59 SR-22 NP-1452-A 1000 3636 400kV Ramagundam Line-III S L&T

60 SR-23 NP-5629-A 1000 3636 400kV Ramagundam Line-IV S L&T

61 PG-15 NP-1455-A 50 300 33kV side of Aux.Transformer S L&T




5) Nagarjunasagar






67 AP-28 NP-1475-A 1000 2000 220kV side of ICT-III S L&T

68 SR-06 NP-1473-A 1000 3636 400kV Cuddapah Line -I S L&T

69 SR-07 NP-1480-A 1000 3636 400kV Cuddapah Line-II S L&T

70 SR-08 NP-1479-A 2000 3636 400kV Gooty Line S L&T

71 SR-28 NP-1466-A 1000 3636 400kV Ramagundam Line-I S L&T

72 SR-29 NP-1467-A 1000 3636 400kV Ramagundam Line-II S L&T

73 CK-22 NP-1484-A 1000 3636 400kV Mehaboobnagar Line S L&T



6) Cuddapah

75 AP-29 NP-5369-A 500 3636 400kV side of ICT I M L&T

76 AP-30 NP-5366-A 1000 2000 220kV side of ICT I S L&T

77 AP-37 NP-5387-A 600 3636 400kV side of ICT II M L&T

78 AP-38 NP-5386-A 1000 2000 220kV side of ICT II S L&T

79 SR-09 NP-5370-A 1000 3636 400kV Chittoor Line S L&T

Total no. of SEMs 5

7) Gooty

80 AP-31 NP-5374-A 500 3636 400kV side of ICT I M L&T

81 AP-39 NP-6037-A 600 3636 400kV side of ICT II M L&T

82 AP-87 NP-5373-A 1000 3636 400kV Kurnool Line S L&T

83 AP-89 NP-5372-A 1000 3636 400kV Nelamangala Line S L&T

84 AP-32 NP-5375-A 1000 2000 220kV side of ICT I S L&T

85 AP-40 NP-6038-A 1000 2000 220kV side of ICT II S L&T

86 SR-11 NP-5371-A 1000 3636 400kV Hoody Line S L&T

87 AP-67 NP-5393-A 1000 3636 400KV Raichur Line I S L&T

88 AP-68 NP-5390-A 1000 3636 400KV Raichur Line II S L&T

Total no. of SEMs 9

8) Nellore

89 AP-33 NP-4117-A 2000 3636 400 kV Interconnector-1 (PG) M SMLnew

90 AP-35 NP-4118-A 2000 3636 400 kV Interconnector-2 (PG) M SMLnew

91 AP-34 NP-4125-A 2000 3636 400 kV Interconnector-1 (AP) S SMLnew

92 AP-36 NP-4126-A 2000 3636 400 kV Interconnector-2 (AP) S SMLnew

93 SR-76 NP-4115-A 1000 3636 400 kV Alamathy line-1 S SMLnew

94 SR-77 NP-4116-A 1000 3636 400 kV Alamathy line-2 S SMLnew

Total no. of SEMs 6

9) Warangal

95 AT-03 NP-5510-A 600 3636 400kV side of ICT -I M L&T

96 AT-04 NP-5513-A 800 2000 230kV side of ICT -I M L&T

97 AT-05 NP-5529-A 600 3636 400kV side of ICT -II M L&T

98 AT-06 NP-5530-A 800 2000 230kV side of ICT -II M L&T

99 SR-83 NP-5394-A 1000 3636 400kV Ramagundam line M L&T

100 PG-25 NP-6166-A 50 300 33kV side of Aux Transformer S L&T

101 AT-13 NP-5487-A 1000 3636 400kV Boopalapally Line-I M L&T

102 AT-14 NP-6167-A 1000 3636 400kV Boopalapally Line-II M L&T

Total no. of SEMs 8



10) Somanahalli

103 CK-01 NP-5120-A 1000 3636 400kV side of ICT-I M L&T

104 CK-03 NP-5122-A 1000 3636 400kV side of ICT-II M L&T

105 CK-02 NP-5121-A 1600 2000 220kV side of ICT-I S L&T

106 CK-04 NP-5123-A 1600 2000 220kV side of ICT-II S L&T

107 SR-12 NP-5124-A 1000 3636 400kV Salem Line S L&T

108 CK-37 NP-5126-A 2000 3636 400kV Nelamangala S/C Line S L&T

109 CK-62 NP-5127-A 1000 3636 400kV Nelamangala D/C Line I M L&T

110 CK-63 NP-5128-A 1000 3636 400kV Nelamangala D/C Line II M L&T


Total no. of SEMs 9

11) Munirabad112 CK-05 NP-5397-A 500 3636 400kV side of ICT I M L&T

113 CK-06 NP-5398-A 1000 2000 220kV side of ICT I S L&T

114 CK-24 NP-5396-A 1000 3636 400kV Raichur Line S L&T

115 CK-27 NP-5381-A 1000 3636 400kV Guttur Line S L&T

116 CK-68 NP-5383-A 600 3636 400kV side of ICT II M L&T

117 CK-69 NP-5384-A 1000 2000 220kV side of ICT II S L&T

Total no. of SEMs 6

12) Hiriyur

118 CK-15 NP-4048-A 600 3636 400kV side of ICT -I M SMLnew

119 CK-16 NP-4049-A 1000 2000 220kV side of ICT -I S SMLnew

120 CK-72 NP-5637-A 600 3636 400kV side of ICT -II M L&T

121 CK-73 NP-5638-A 1000 2000 220kV side of ICT -II S L&T

122 CK-32 NP-4046-A 1000 3636 400kV Nelamangala Line-I S SMLnew

123 CK-33 NP-4047-A 1000 3636 400kV Nelamangala Line-II S SMLnew

124 PG-21 NP-4060-A 50 300 33kV side of Aux. Transformer S SMLnew

Total no. of SEMs 7

13) Kolar

125 CK-11 NP-5548-A 1000 3636 400 kV side of ICT I M L&T

126 CK-66 NP-5549-A 1000 3636 400 kV side of ICT II M L&T

127 PG-05 NP-5547-A 200 300 33kV side of Aux. Transformer M L&T

128 CK-12 NP-5147-A 1600 2000 220 kV side of ICT I S L&T

129 CK-67 NP-5146-A 1600 2000 220 kV side of ICT II S L&T

130 DC-07 NP-5158-A 3000 3636 400 kV side of Converter Transf.-I S L&T

131 DC-08 NP-5159-A 3000 3636 400 kV side of Converter Transf.-II S L&T

132 DC-09 NP-5157-A 3000 3636 400 kV Filter Bank-II S L&T

133 DC-10 NP-5550-A 3000 3636 401 kV Filter Bank-III S L&T

134 DC-11 NP-5156-A 3000 3636 400 kV Filter Bank-I (Main Bay) S L&T

135 DC-12 NP-5155-A 3000 3636 400 kV Filter Bank-I (Tie Bay) S L&T

136 SR-60 NP-5154-A 1000 3636 400kV Cuddapah Line S L&T

137 SR-61 NP-5153-A 1000 3636 400kV Somanahalli Line S L&T

138 SR-62 NP-5149-A 1000 3636 400kV Sriperambadur Line S L&T

139 SR-63 NP-5150-A 1000 3636 400kV Hoody Line-I S L&T

140 SR-64 NP-5152-A 1000 3636 400kV Hoody Line-II S L&T

141 SR-65 NP-5151-A 1000 3636 400kV Hosur Line-I S L&T

142 SR-66 NP-5148-A 1000 3636 400kV Hosur Line-II S L&T




14) Narendra




146 CK-47 NP-2498-A 1000 2000 220kV side of ICT -II S SMLnew

147 CK-70 NP-5661-A 1000 3636 400kV Guttur Line-I S L&T

148 CK-71 NP-5662-A 1000 3636 400kV Guttur Line-II S L&T

Total no. of SEMs 6

15) Mysore




152 CK-43 NP-2534-A 1000 2000 220kV side of ICT -II S SMLnew

Total no. of SEMs 4

16) Hassan

153 CK-81 NP-5690-A 1000 3636 400 kV side of ICT-I S L&T

154 CK-82 NP-5648-A 800 2000 230 kV side of ICT-I S L&T

155 CK-83 NP-5649-A 1000 3636 400 kV side of ICT-II S L&T

156 CK-84 NP-5650-A 800 2000 230 kV side of ICT-II S L&T

157 CK-85 NP-5591-A 1000 3636 220kV Nelamangala line S L&T

158 CK-86 NP-5646-A 1000 3636 220kV Talaguppa line S L&T

Total no. of SEMs 6

17) Trichur

159 KL-01 NP-5143-A 1000 3636 400 kV Interconnector-1 (PG) M L&T

160 KL-03 NP-5145-A 1000 3636 400 kV Interconnector-2 (PG) M L&T

161 KL-02 NP-5142-A 1000 3636 400 kV Interconnector-1 (KSEB) S L&T

162 KL-04 NP-5144-A 1000 3636 400 kV Interconnector-2 (KSEB) S L&T

Total no. of SEMs 4

18) Trivandrum

163 KL-05 NP-4042-A 600 3636 400kV side of ICT-I M SMLnew

164 KL-07 NP-4043-A 600 3636 400kV side of ICT-II M SMLnew

165 KL-06 NP-4044-A 1000 2000 220kV side of ICT-I S SMLnew

166 KL-08 NP-4063-A 1000 2000 220kV side of ICT-II S SMLnew

167 KL-09 NP-5587-A 600 3636 400kV side of ICT-III M L&T

168 KL-10 NP-5588-A 1000 2000 220kV side of ICT-III S L&T

Total no. of SEMs 6

19) Sriperumbudur

169 TN-01 NP-1489-A 2000 3636 400 kV Interconnector-1 (PG) M L&T


171 TN-02 NP-1486-A 1000 3636 400 kV Interconnector-1 (TNEB) S L&T


173 SR-30 NP-1446-A 1000 3636 400 kV Chithoor line S L&T

174 SR-31 NP-1234-A 1000 3636 400KV Alamathy Line I S L&T

175 SR-32 NP-1485-A 1000 3636 400KV Alamathy Line I S L&T

Total no. of SEMs 7



20) Salem





180 SR-13 NP-1500-A 1000 3636 400kV Udumalpet Line-I S L&T

181 SR-70 NP-1458-A 1000 3636 400kV Udumalpet Line-II S L&T

Total no. of SEMs 6

21) Udumalpet

182 TN-09 NP-5137-A 1000 3636 400kV side of ICT-I M L&T

183 TN-11 NP-5139-A 1000 3636 400kV side of ICT-II M L&T

184 TN-10 NP-5138-A 1000 2091 230kV side of ICT-I S L&T

185 TN-12 NP-5140-A 1000 2091 230kV side of ICT-II S L&T

186 TN-73 NP-5654-A 600 3636 400kV side of ICT-III M L&T

187 TN-74 NP-5655-A 1000 2091 230kV side of ICT-III S L&T


Total no. of SEMs 7

22) Trichy





193 SR-15 NP-1494-A 1000 3636 400kV Madurai Line S L&T

194 SR-16 NP-1495-A 1000 3636 400kV Karaikudi S L&T

195 SR-24 NP-1470-A 1000 3636 400kV Neyveli TPS-I Exp. Line S L&T

196 PG-25 NP-6166A 50 300 33kV side of Aux.Transformer S L&T

Total no. of SEMs 8

23) Madurai





201 SR-14 NP-5130-A 1000 3636 400kV Udumalpet Line S L&T

202 SR-74 NP-5136-A 1000 3636 400kV Thirunelveli Line-I S L&T

203 SR-75 NP-5135-A 1000 3636 400kV Thirunelveli-II S L&T

Total no. of SEMs 7

24) Hosur

204 TN-31 NP-1459-A 600 3636 400 kV side of ICT-I M L&T

205 TN-33 NP-1460-A 600 3636 400 kV side of ICT-II M L&T

206 TN-32 NP-1357-A 1000 2091 230 kV side of ICT-I S L&T

207 TN-34 NP-1462-A 1000 2091 230 kV side of ICT-II S L&T

208 SR-67 NP-5642-A 1000 3636 400kV Salem Line S L&T

Total no. of SEMs 5



25) Tirunelveli





213 SR-41 NP-5678-A 1000 3636 400kV Trivandrum Line-I S L&T

214 SR-42 NP-5677-A 1000 3636 400kV Trivandrum Line-II S L&T

215 SR-47 NP-5656-A 1000 3636 400kV Udumalpet Line-I S L&T

216 SR-48 NP-5657-A 1000 3636 400kV Udumalpet Line-II S L&T

217 TN-83 NP-5574-A 800 2000 220kV Edamon line-I M L&T

218 TN-84 NP-5575-A 800 2000 220kV Edamon line-II M L&T


26) Pugalur





223 SR-80 NP-5586-A 1000 3636 400kV Madurai Line-I S L&T

224 SR-81 NP-5584-A 1000 3636 400kV Madurai Line-II S L&T

225 SR-82 NP-5556-A 1000 3636 400kV Neyveli TS Line- I S L&T

226 SR-84 NP-5555-A 1000 3636 400kV Neyveli Expn-II Line S L&T

Total no. of SEMs 8

27) Kalivanthapattu





231 SR-43 NP-5665-A 1000 3636 400kV Kolar line S L&T

232 SR-44 NP-6183-A 1000 3636 400kV Madras line S L&T

Total no. of SEMs 6

28) Karaikudi





237 SR-45 NP-5592-A 1000 3636 400kV Trichi Line M L&T

238 SR-46 NP-5594-A 1000 3636 400kV Madurai Line M L&T

Total no. of SEMs 6

29) Arasur

239 TN-85 NP-5567-A 1000 3636 400 kV Udumalpet line-1 S L&T

240 TN-86 NP-5569-A 1000 3636 400 kV Udumalpet line-2 S L&T



243 TT-01 NP-5570-A 600 3636 400 kV side of ICT-II M L&T

244 TT-02 NP-5572-A 1000 2091 230 kV side of ICT-II S L&T

Total no. of SEMs 6



30) Pondicherry

245 PO-07 NP-5606-A 1000 3636 400 kV Sriperumbudur line-1 S L&T

246 PO-08 NP-5603-A 1000 3636 400 kV Neyveli line-2 S L&T

247 PO-09 NP-5705-A 600 3636 400 kV side of ICT-I M L&T

248 PO-10 NP-5602-A 1000 2000 220 kV side of ICT-I S L&T

249 PO-11 NP-5605-A 600 3636 400 kV side of ICT-II M L&T

250 PO-12 NP-5601-A 1000 2000 220 kV side of ICT-II S L&T

Total no. of SEMs 6


(M) Western Region Stations**

Bhadravati HVDC


Ratio

PT-

Ratio


1 WR-33 NP-2310-A 2000 3636 400kV South Bus-I S SMLnew

2 WR-34 NP-4215-A 2000 3636 400kV South Bus-II S SMLnew

3 WR-31 NP-4165-A 2000 3636 400kV West Bus-I M SMLnew

4 WR-32 NP-4214-A 2000 3636 400kV West Bus-II M SMLnew

Korba STPP5 WR-MF NP-2465-A 2000 3636 400 kV Vindhyachal Line M SMLnew

Total no. of SEMs 5

(N) Eastern Region Stations**


Ratio

PT-

Ratio


Jeypore1 ER-84 NP-5961-A 1000 3636 400kV Gazuwaka Line-I M L&T

2 ER-85 NP-5962-A 1000 3636 400kV Gazuwaka Line-II M L&T

Durgapur 400kV Substation

3 ER-MF NP-6461-A 500 3636 400 kV side of ICT-2 M L&T

Talcher HVDC

4 PG-07 NP-4035-A 150 100 11 kV side of Aux.Transformer-I M SMLnew

5 PG-09 NP-4039-A 150 100 11 kV side of Aux.Transformer-II M SMLnew

6 PG-11 NP-4202-A 150 100 11 kV side of Aux.Transformer-III M SMLnew

7 PG-08 NP-4036-A 3000 3.77 415V side of Aux.Transformer-I S SMLnew

8 PG-10 NP-4008-A 3000 3.77 415V side of Aux.Transformer-II S SMLnew

9 PG-12 NP-2363-A 3000 3.77 415V side of Aux.Transformer-III S SMLnew

Total no. of SEMs 9

** Meters of importance to Southern Region



2.4 MASTER FREQUENCY SEMs


Ratio

PT-

Ratio


Main Master Frequency Meter for SR (at Ramagundam STPS, NTPC)

1 SR-MF NP-0239-A Master Frequency Meter M SMLold

Standby Master Frequency Meter for SR (at Madras Atomic Power Station,NPC)

2 MA-04 NP-4023-A 600 2000 230kV Acharapakkam feeder M SMLnew

Main Master Frequency Meter for Central Grid ( at Korba STPP)

3 WR-MF NP-2465-A 2000 3636 400 kV Vindhyachal Line M SMLnew

Standby Master Frequency Meter for Central Grid ( at Durgapur 400kV Substation)

4 ER-MF NP-6461-A 500 3636 400 kV side of ICT-2 M L&T

Note: The above SEMs are included in the Location-wise details of SEMs at Sub-section 2.3



SECTION – 3


LOCATION DIAGRAMS


LOCATION DIAGRAMS

3.1 General

3.1(a) Location diagram of SEMs in SR – 400 KV System

3.1(b) Location diagram of SEMs in State owned Inter-State lines

3.1(c) Location diagram of SEMs in CTU network

3.1(d) Location diagram of SEMs in 400kV substations

3.2 Location diagram of SEMs at ISGSs

3.2(a) Ramagundam STPS

3.2(b) Talcher STPP-II

3.2(c) Neyveli Lignite Corporation

3.2(d) Madras Atomic Power Station

3.2(e) Kaiga Generating Station

3.3 Location diagram of SEMs at Drawee utilities

3.3(a) APTRANSCO system

3.3(b) KPTCL system

3.3(c) KSEB system

3.3(d) TNEB system

3.3(e) Pondicherry system

3.3(f) Goa system

3.3(g) POWERGRID-HVDC system

3.1 (a) Location diagram of SEMs in SR - 400kV system```

RM-21

RM-11

HYDERABAD

RM-01RM-02

RM-03RM-04 RM-05 RM-06

RM-15

RM-25RM-16

RM-26

RM-17

RM-27

AP-15

RM-32

AP-16

AP-13

RM-31

AP-14

AP-11

RM-30

AP-12

AP-07

RM-28

AP-08

AP-09

RM-29

AP-10

RM-14

RM-24

RM-13

RM-23

N'SAGAR

TTs

AP-17

AP-18

PG-15

AP-21

AP-22

AP-19

AP-20

AP-71

SR-04 SR-05

SR-28 SR-29

AP-25

AP-26

AP-27

AP-28

AP-23

AP-24

PG-17

AP

SR-06 SR-07

AP-29

AP-30

AP-31

AP-32

SR-08

SR-11

GOOTY

SOMANAHALLI

SR-60

CK-01

CK-02

CK-03

CK-04

CK-22

CUDDAPAH

HOODY

CK-11

CK-12

PG-05

KPTCL

KOLAR HVDC

POLE1 POLE2

SR-63 SR-64 SR-61

SR-62

TN-03 TN-01

TN-02

TNEB

SRIPERAMBDUR

SR-65 SR-66

HOSURSR-12

SR-67

SALEMARASURTN -85 TN-86

TN-05

TN-06

TNEB

TN-07

TN-08

NLC-TPS-I

Expn

TRICHY

SR-21

RS-21

RS-41

45 6 7

TN-15

TN-16

PG-25

TN-13

TN-14

TN-19

TN-20

TN-17

TN-18

MADURAI

RS-22

SR-15

TN-09

TN-10

TN-11

TN-12

UDUMALPET

SR-13 SR-70

TN-04

KL01

KL-02

KL-03

KL-04

TRICHUR

KSEB

AF-1 AF-2 AF-3

TN-31

TN-32

CK-37

1

RM-07

2

RM-08

3

RM-09

12 3 4

6 75

KURNOOL

4

RM-49RM-47

KL-05TN-19TN-17

KL-06

KL-07

KL-08

SR-74SR-75

TRIVANDRUM

TN-33

TN-34

SR-22 SR-23

RM-18

RM-38

RM-19

RM-39

MEHABOOBNAGAR

AP-60

PG-21

CK-21

RAICHUR

4 5 6 7

MUNIRABAD

CK-23

CK-05/68

CK-06/69

CK-24

CK-27

GUTTUR

CK-25

CK-26

NELAMANGALA

CK-28

CK-09

CK-10

CK-30

CK-31

CK-07

CK-08

CK-15

CK-16

HIRIYUR

CK-29

CK-32 CK-33

CK-13

CK-14

CK-35

CK

-36

CK-34

Talaguppa

AP-89

AP-59

KG

-25

KG

-26

CK-17

CK-18

NARENDRA

KAIGA GS

KG

-22

GAZUWAKA

JEYPORE

DC-03 DC-04

V IJAYAWADA

MAMIDIPALLY

AP-73

AP

-02

KALAPAKA

VTPS

AP

-01

DC-01DC-02

SR-02

AP-81AP-82

AP-75

AP-76

AP-77 AP-79

AP-78 AP-80

AP-83 AP-84

KHAMMAM

NELLORE-PG

PG

-03

KURNOOL

AP-03

AP-04

SR-71

SR-27

SIMHADRI

1 2

DC-14

POLE-1 POLE-2

DC-13

SR-72SR-01 SR-73

SR-76 SR-77 AP-33 AP-35

AP-34 AP-36

NELLORE -AP

SR-68 SR-69

AC BYPASS

EAST BUS

SOUTH BUS

PG-01

VEMAGIRI

AP-62 AP-64

AP-61 AP-63

WR-33 WR-34

WR

To NLC TPS-II Sage 1

ICT-2ICT-1

NLC-TPS-II Stage 2

NE-05

NE-07

BHADRAWATI

RAMAGUNDAM STPP I,II & III

RM-22

RM-12

WR-31 WR-32

POLE1 POLE2

TL-31

TL-41TL-32

TL-42

TL-33

TL-43

TL-34

TL-44

3

TL-46

TL-45

4

TL-48

TL-47

5

TL-50

TL-49

6

TL-52

TL-51

3

RM-09

TL-58

TL-57

TL-60

TL-59

SUT-2 SUT-3

TL-16 TL-17

X X

TL-14 TL-15

TALCHER STPP- Stage -2

TALCHER STPP- Stage -1

Inter -

connector

KOLAR KOLAR

TALCHER TALCHER

NV-04

NL-04

NL-24

NV-04

NL-04

NL-24

NV-05

NL-05

NL-25

NV-06

NL-06

NL-26

NV-07

NL-07

NL-27

NV-16

NL-16

NL-36

NV-17

NL-17

NL-37

SR-17

RS-17

RS-37

SR-18

RS-18

RS-38

SR-19

RS-19

RS-39

SR-20

RS-20

RS-40

1 2

NE-01

NE-03

NE-02

NE-04

NE-06

NE-08

SR-24

4

RM-49

AP-72

AP-86

AP-88

AP-87

AP-74

SRISAILAM

CK-38

SR-25

AP-05

AP-06

SR-26

PG-13

AP-85 SR-03

SR-09

PG-19

DC-07 DC-08

DC-12

DC-11 DC-09 DC-10

PG-23

SR-14

TALCHER HVDC

ALAMATHYTN-35

TN-36

TN-37

TN-38

CK-19

CK-20

CK-40

CK-41

CK-42

CK-43

MYSORE

CK-46

CK-47

SR-31 SR-32

TN-40

TN-39

KG

-21

SUT-1 & 2UNIT 1 & 2

SUT-3 & 4

UNIT 3 & 4

KO

DA

SA

LL

Y

KA

DR

A

KG

-01 K

G-1

1

KG

-02

KG

-12

KG

-03 K

G-1

3

KG

-04 KG

-14

KG

-05

KG

-06

KG

-07

KG

-08

KG

-15

KG

-16

KG

-17

KG

-18

KGS 220KV BUS

KGS 400KV BUS

CK

-48

CK

-49

CK-62 CK-63

AP-65

SR-30

AP-66

CHITTOOR

CK-44 CK-45

AP-67 AP-68CK-64

CK-65

AP-39

AP-40

AP-37

AP-38

TL-33

TL-43

AP-46AP-45

AP-47AP-48

SR-79 SR-78

AP-43

AP-44

RM-20

RM-40

DITCHIPALLY

CK-70 CK-71

TN-46

TN-

47

TIRUNELVELI

SR-81 SR-80

CK-72

CK-73

CK-66

CK-67

GAJWEL

BTPS

KALAVINDAPATTU

SR-43

SR-44

TN-48

TN-49

TN-59

TN-60 PO-07 PO-08

KG

-23

KG

-24

AP-49

TN-71

TN-72

TN-83 TN-84

KL11 KL-12

AT-02

AT-01

CK-78

CK-79

CK-76 CK-77

KL-09

KL-10

TN-73

TN-74SR-47

SR-48

AT-17

AT-18 MALKARAM

AT-03/05

AT-04/06

2 ICT'S

SR-83

PG-25

AT-13/14

AT-15/16

BOOPALAPALLY

AP

-69

AP

-70

SRISAILAM

CK

-74

CK

-75

CK-80

JSWCK-39

2 ICT'S

WARANGAL

LANCO

AT-07

AT-08

AT-09

AT-10

AT-11

AT-12

NLC-TPS-2 Expn

TN-77

TN-79

TN-78

TN-80

2 ICT's

KARAIKUDI

TN-75

TN-81

TN-76

TN-82

2 ICT's

PUGALUR

SR

-80

SR

-81

SR-82SR-84

RS-23

SR-16

SR-45

SR-46

EDAMON

TN-

87

TN-88

HASSAN

CK-83

CK-84

CK-81

CK-82

TT-01

TT-02

1 2

NE-21

NE-22

NE-23

NE-24

NE-25

NE-26

NE-27

NE-28

PO-11

PO-12

PO-09

PO-10

PONDY


HOSUR

YERANDAHALLI

220kV

MANJESWAR

UPPATI

KADAKOLAKANIYMPETTA

KONEJA

ARAKU

BALIMELA

ORISSA (ER)

ANDHRA PRADESH

TAMIL NADU

KERALAKARNATAKA

GOA(SR)

LOWER

SILERU

KO

LH

AP

UR

KU

ZH

ITH

UR

AI

UD

UM

AL

PE

T TH

EN

I

BELLARY

TANDUR GOOTY

SEDAM

CHIKKODI

MOOZHIYAR

IDU

KK

I

PA

RA

SA

LA

MA

HA

RA

SH

TR

A

(WR

)C

HA

TT

ISG

AR

H

(W

R)

22

0 K

V2

20

KV

22

0 K

V

11

0 K

V

22

0 K

V

13

2 K

V

66

KV

11

0 K

V

220 KV

110 KV

AP

-57

OS

-58

P0

-06

TN 56

AP-54 TN-57

TN-54

TN-55

CK-54

CK-51

CK-52

KL-55

KL-56

CK

-56

CK

-59

CK

-58

GO

-03

CK

-57

CK-60

CK-61

CK

- 5

5

CK

- 5

3

PONDY YANAM

13

2 K

V

XELDEM

GO

-04

UPPER

PONDA PONDA

AMBEWADI SUPA

MACHKHUNDBALIMELA

AP-53CHITHOOR TIRUVALEM

SULURPET G'PUNDI

KOOTHAMUNDA

220 KV

HVDC

AP-58

220 KV HVDC 220 KV

220 KV

132 KV

22

0 K

V

11

0 K

V

3.1 (b) Location diagram of SEMs in State owned Inter State Lines

AP

-55

AP

-56

AP

-51

AP

-52

(TA

LA

NG

EN

E)

(M

US

HT

UN

GI)

B

AR

SU

R

KAKINADA

PO

-05

KL

-53

TN

-53

TN

-58

KL

-58

KL

-51

TN

-51

HVDC

GO

-01

GO

-02

AMBEWADI

22

0 K

V

22

0 K

V

SUPA

PONDA

CHIKKODI220 KV


ARNI

ACHARA-

PAKKAM

KG

-21

GU

TT

UR

-1

RM-21

RM-11

RM-22

RM-12

ER-84 ER-85

WR-33 WR-34

WR-32

BHADRAVATHI

400kV

+500kV HVDC

CK

-75G

UT

TU

R-2

400kV

KG

-23

KA

DR

A 2

20K

V

KG

-24

KO

DA

SA

LLI

220kV

KG

-25

NA

RE

ND

RA

-1

400kV

KG

-26

400kV

NA

RE

ND

RA

-2

3.1 (c) SEM Location Diagram in ISTS Network

`

T

N

E

B

TN-25, TN-45, TN-65

TRICHUR

I

S

T

S

TN-05/07

TN-01/03

TN-09/11/73TN-10/12/74

TN-06/08

TN-04

SRIPERUMBUDUR

TIRUNELNELI

TN-47/72TN-46/71

TIRUNELVELI

PONDY YANAM

PO-05

PO-06

132kV

KAKINADA

K

P

T

C

L

2 ICTs

220/400kV

CK-16/72 CK-15/73HIRIYUR HIRIYUR

KOLAR

KOLAR

CK-11/66CK-12/67

2 ICTs

220/400kV

CK-18/47 CK-17/46 NARENDRA

NARENDRA

SR-63

HOODY

400kVHOODY

CK-01/03CK-02/04

2 ICTs

220/400k

SOMANAHALLI SOMANAHALL

HASSAN

HASSAN

CK-06/69 CK-05/68MUNIRABAD MUNIRABAD

400kV

RSTPS

DC-03 DC-04

ER

JEYPORE

TALCHER

2 ICTS

220/400kV

SRIPERUMBUDUR

BA

HU

R

VIL

LIA

NU

R

PO-01

PN-01

PN-21

230kV

PO-03

PN-03

PN-23

PONDY

230kV

PO-02 PO-04

NLC

TS-II

Stage. 1

TIE-2

TIE-1

TN-24, TN-44, TN-64

KADALANGUDI

TN-23, TN-43, TN-63

VILLUPURAM

TN-22, TN-42, TN-62

TN-21, TN-41, TN-61

STCMS

KL-05/07/09 KL-06/08/10

TRIVANDRUMTRIVANDRUM

TN-83 KL-11TIRUNELVELI EDAMON

SR-72/73 AP-45/46

VIJAYAWADA VEMAGIRI

400kV I/C

KL-01/03 KL-02/04TRICHUR

TRICHUR

MA-01/11 TN-26

SPKOIL-1230kV

MA-02/12 TN-27

230kVSPKOIL-2

TN-28MA-03/13

230kVARNI

TN-29MA-04/14

230kVACHARAPAKKAM

TN-13/15TN-14/16

TRICHYTRICHY

UDUMALPET

UDUMALPET

SALEMSALEM

AP-02/70AP-01/69

GAZUWAKA GAZUWAKA

AP-04/44AP-03/43VIJAYAWADA VIJAYAWADA

AP-81/82

AP-47/48

GAZUWAKA

KALAPAAKA

AP-76AP-75VIJAYAWADA

AP-73

MAMIDIPALLI

AP-33 AP-34

NELLORENELLORE

AP-35 AP-36NELLORE NELLORE

AP-61/63 AP-62/64

VIJAYAWADA VEMAGIRI

AP-06/42AP-05/41KHAMMAM KHAMMAM

400/132kV

WARANGAL

2 ICTsAP-07/09 AP-08/10

RSTPS

3 ICTs

AP-11/13/15

RSTPSAP-12/14/16

RSTPS

3 ICTs

HYDERABAD

AP-17/19/21 AT-18/20/22HYDERABAD

AP-23/25/27

N'SAGAR

AP-24/26/28

N'SAGAR

AP-30/38AP-29/37

CUDDAPAH CUDDAPAH

AP-31/39 AP-32/40

GOOTY GOOTY

AP-71 AP-72HYDERABAD MAMIDIPALLI

AP-77/79 AP-79/80KHAMMAM MAMIDIPALLI

KHAMMAM KALPAKKA

AP-83/84

AP-59CK-22N'SAGAR MEHBUBNAGAR

AP-85AP-86

HYDERABAD KURNOOL

SR-09 AP-65

CUDDAPAH CHITTOOR

SR-30 AP-66SRIPERUMPUDUR CHITTOOR

AP-87 AP-88

GOOTY KURNOOL

K

S

E

B

400kV I/C

400kV I/C

CK-40/42CK-41/43

2 ICTs

220/400kV

MYSORE MYSORE

CK-44/45

NELAMANGALA

TALAGUPPA

NELAMANGALAMYSORE

SR-76/77NELLOREALAMATHY

SR-31/32

GOOTY

NELAMANGALAAP-89CK-38

KGS

NARENDRA

NELAMANGALACK-32/33

CK-28/34GUTTUR

HIRIYUR

HIRIYUR

220/400kV

GUTTUR

MUNIRABAD

CK-27

CK-24MUNIRABADRAICHUR

CK-23

GOOTY

RAICHUR

AP-67/68CK-64/65

CK-37/62/63CK-36/48/49

NELAMANGALA SOMANAHALLY

SRIPERUMBUDURALAMATHY

WR

CK-29/35

3 ICTs

2 ICTs

2 ICTs

3 ICTs

400/220KV

2 ICTs

220/400KV

TN-17/19TN-18/20MADURAIMADURAI

2 ICTs

220/400KV

2 ICTs

220/400KV

3 ICTs

220/400KV

SR-64

400kV

400kV

M

A

P

S

A

P

T

R

A

N

S

C

O

WR-31

2 ICTs

VEMAGIRI

2 ICTs

400/220kV

2 ICTs

HOSUR

TN-31/33TN-32/34HOSUR

CK-70/71

CK

-74

KG

-22

VTPS SSLM

SR-04 AT-01

HYDERABAD GAJWEL

RSTPS GAJWELRM-15 AT-02

MALKARAM

RSTPS

HYDERABADAT-17

AT-18SR-05

RM-16

DITCHIPALLYRSTPSAP-49RM-20

TN-02/04

TN-02400kV I/C

2 ICTs

220/400KV

2 ICTs

220/400KV

TN-76/82 TN-75/81PUGALURPUGALUR

KARAIKUDIKARAIKUDI

TN-78/80 TN-77/91

GAZUWAKA

GAZUWAKASR-78/79

AT-08

AT-07

AT-11

AT-10

VIJAYAWADA

LANCO KONDAPALLI

AT-09 AT-12

TN-84 KL-12

3 ICTs

AP-11/13/15

RSTPSAP-12/14/16

RSTPS

2 ICTs

AP-13/14 AP-15/16BOOPALAPALLI

RSTPS


East Bus

T

AP

70

AP

-02

JEYPORE

AP

69

AP

-01

DC-03

DC-01

DC-04

AP

-81

AP

-82

KALAPAKA

AP

-73

KHAMMAM

AP-77 AP-79 AP-83 AP-84

MAMIDIPALLI KALAPAKAVIJAYAWADA

RAMAGUNDAM

N'SAGAR

AP-25

AP-26

AP-27

AP-28

AP-23

AP-24

PG-17

SR-06 SR-07SR-08CK-22

CUDDAPAHMEHBOOBNAGAR

RAMAGUNDAM-1&2

AP-29

AP-30

N'SAGAR-1&2

KADAPPA

GOOTY

HYDERABAD

KOLAR CHITTOOR

AP-31

AP-32

SR-11

GOOTY

N'SAGAR

HOODY

DRAWL BY AP=(AP-03)+(AP-43)+(AP-73)+ (AP-75)*0.98 DRAWL BY AP=(AP-05)+(AP-41)+(AP-77)+(AP-79)+

(AP-83)+(AP-84)

AP-05

AP-06

PG-13

HYDERABAD

AP-17

AP-18

AP-21

AP-22

AP-19

AP-20

AP-71

MAMIDIPALLY

SR-04 SR-05

DRAWL BY AP=(AP-17)+(AP-19)+(AP-21) DRAWL BY AP=(AP-23)+(AP-25)+(AP-27)

DRAWL BY AP=(AP-29)+(AP-37)DRAWL BY AP=(AP-31)+(AP-39)

AP-15

AP-16

AP-13

AP-14

AP-11

AP-12

AP-07

AP-08

AP-09

AP-10

APTRANSCO

DRAWL BY AP=(AP-07)+(AP-09)+(AP-11)

+(AP-13)+(AP-15)+(RM-20)

DRAWL BY AP=(AP-01)+(AP-69)-(PG-01)-(PG-

03) +(AP-81)+(AP-82)

SR-09

GAZUWAKA

RAMAGUNDAM-3&4N'SAGAR

VIJAYAWADA

VIJAYAWADA

AP

-03

SRISAILAM

AP

-04

AP

-75

SR-73

NELLORE-1&2KHAMMAM

GAZUWAKA

3.1 (d) Location Diagram of SEMs in 400kV Substations

DC-02

DC-13

AC

Bypass

PG-01

SR

-25

PG-03

Pole-2

DC-14

Pole-1

SR

-68

SR

-69

SR-72SR-01

SR

-02

SR-26

SR-27 SR-71

N'SAGAR

RAMAGUNDAM

SR-22 SR-23

RAMAGUNDAM-1&2

AP-85

KURNOOL

SR-03 SR-28 SR-29

AP-89

NELAMANGALA

AP-87

KURNOOL

AP-72

RM-28 RM-29 RM-30 RM-31 RM-32

AP-61 AP-63

VEMAGIRI-1&2

SR

-76

SR

-77

VIJAYAWADA-I, II

NELLORE

ALAMATHY -I & II

AP-33

AP-34

AP-35

AP-36

APTRANSCO

DRAWL BY AP= (AP-33) +(AP-35)

400/132kV

2 ICTs

400/220kV

3 ICTs

PG-15

KHAMMAM

AP-67 AP-68

RAICHUR

AP-39

AP-40

AP-37

AP-38

SR

-01

SR

-78

SR

-79

AP-62 AP-64

SR-25

SR

-26

AP-78 AP-80SR-02

RM-17

AP-59

SR-03SR-71

RM-13 RM-14

AP-86

RM-15 RM-16 RM-18 RM-19

SR-06 SR-07

AP-65SR-60

SR-08AP-88CK-64 CK-65

CK-38

SR-68 SR-69

VEMAGIRI

AP

-47

AP

-48

VEMAGIRI-3&4

AP-45 AP-46

AP

-43

AP

-44

AP-41

AP-42

RM-20

AP-49

RM-40

DITCHIPALLY

LANCO

AT-10 AT-07

AT-11 AT-08

SRLDC51-55

SEMs IN SOUTHERN REGION

MAMIDIPALLYSRISAILAM

AP-76

AP-77 AP-79

AP-78 AP-80

KHAMMAM

DRAWL BY AP=-(AP-72)

AP-72

HYDERABAD

3.1 (d) Location Diagram of SEMs in 400kV Substations …..continued

KURNOOLHYDERABAD

AP-86

AP-88

GOOTY

AP-74

SRISAILAM

AP-65

AP-66

SRIPERAMBADUR

CHITHOOR

CUDDAPAH

DRAWL BY AP= -(AP-65) -(AP-66)

DRAWL BY AP= -(AP-86)-(AP-88)

AP-59

N'SAGAR

AP-60

RAICHUR

MEHBOOBNAGAR

DRAWL BY AP= -(AP-59)-(AP-60)

AP-71

AP-87

AP-85

CK-21

CK-22

SR-09

SR-30

VEMAGIRI

SR-78 SR-79

AP-47 AP-48

GAZUWAKA I & II

DRAWL BY AP=-(AP-45)-(AP-46)-(AP-47)-(AP-

48)+AP(61)+AP(63)

AP-45

VIJAYAWADA I,II,III &IV

SR-73

AP-46

SR-74

AP-64AP-62

AP-61AP-63

KALPAKA GMR GVK

AT-02

AT-01

HYDERABAD

GAJWEL

RAMAGUNDAM

DRAWL BY AP= -(AT-02) -(AT-01)

AT-17

MALKARAM

HYDERABAD

DRAWL BY AP= -(AT-17)-(AT-18)

RM-20

WARANGALRAMAGUNDAM

AT-04 AT-06

GAZUWAKA I & II

AT-03 AT05

SR-83

PG-25

DRAWL BY AP= (AT-03) +(AT-05)+(AT-13)+(AT-14)

AP-49

AT-18

RAMAGUNDAM

AT-13 AT-14

BOOPALAPALLY

SRLDC51-55


CK-05

CK-06

MUNIRABAD

CK-24

CK-27

RAICHUR

SOMANAHALLI

CK-01

CK-02

CK-03

CK-04

PG-19SR-12

SALEM

KOLAR NELAMANGALA

MEHBUBNAGAR

CK-21

RAICHUR4 5 6 7

CK-23 CK-25

MIUNIRABAD BTPS

NELAMANGALA

CK-29

CK

-30

HOODY

CK

-09

CK

-10

HOODY

NELAMANGALA KOLAR

DRAWL BY KPTCL=(CK-05)+(CK-68)

DRAWL BY KPTCL = -(CK-29)-(CK-35)-(CK-38)-(CK-36)

-(CK-48)-(CK-49)-(CK-30)-(CK-44)-(CK-45)

DRAWAL BY KPTCL= -(CK-21)-(CK-23)-

(CK-64)-(CK-65)

CK-07

CK-08

GUTTUR

CK-26

CK

-28

HIRIYUR-1&2

JSW

DRAWL BY KPTCL=(CK-07)+(CK-19)+

(CK-26)

DRAWL BY KPTCL= (CK-01)+(CK-03)


AP-60 KAIGA

CK

-34

HIRIYUR-1&2

CK-35

TALAGUPPA HASSAN

CK

-36

CK-38

GOOTY

CK

-13

CK

-14

CK-11/66

CK-12/67

PG-05

SR

-64

SR

-63

SR

-61

SR

-60

SR

-62

KPTCL

KOLAR HVDC

POLE1POLE2

AF-3AF-2AF-1

DC-12

DC

-11

DC

-09

DC

-07

DC

-08

DC

-10C

ON

V. T

RF

-1

CO

NV

. T

RF

-2

SR

-65

SR

-66

HOSUR-1&2Somnahalli

CUDDAPAH

SP'DURHOODY-1&2

DRAWL BY KPTCL =(CK-11)+(CK-66)-(PG-05


NELAMANGALA-1&2

CK

-33

GUTTUR-1&2

CK

-32

HIRIYUR

CK-15

CK-16

PG-21

CK

-44

MYSORE-1&2

CK

-45

MIUNIRABAD

GUTTUR

KAIGA-1&2

CK-17

CK-18

NARENDRA

GUTTUR-1&2


CK-37

SOMANAHALLI

CK-19

CK-20

GOOTY

CK-46

CK-47

NELAMANGALA

CK-40

CK-41

MYSORE

CK-42

CK-43

DRAWL BY KPTCL =(CK-17)+(CK-46) DRAWL BY KPTCL = (CK-40)+(CK-42)

KG-22

CK-75

CK-27

CK-80

CK-62 CK-63

CK

-48

CK

-49

SR-61

CK-79CK-24

GOOTY

CK-64 CK-65

AP-67 AP-68

CK-36CK-48 CK-49

CK-39

CK-32CK-33 AP-89

CK

-31

CK

-37

CK

-62

CK

-63

CK-31

CK-30 SR-11SR-63 SR-64

CK

-29

CK

-35

CK-28 CK-34KG-25 KG-26

KG-21

CK-74

CK-76

CK-70

CK-77

CK-71

NARENDRA-1&2

CK-70 CK-71CK-68

CK-69

CK-72

CK-73

SRLDC51-55


TN-03TN-01

TN-02

TNEB

SRIPERAMBDUR

TN-04

CHITHOOR KOLAR

PONDY

ALAMATHY

SALEM

TN-05

TN-06

TNEB

TN-07

TN-08

SR-13 SR-70

SOMANAHALLI NEYVELI

UDUMALPET

TN-09

TN-10

TN-11

TN-12

UDUMALPETSALEM-1&2 MADURAI

TRICHUR

PG-23

TRICHY

TN-15

TN-16

PG-25TN-13

TN-14

SR-15 SR-16

MADURAI

NLC TS-II NLC TS-I EXP.

TN-19

TN-20

TN-17

TN-18

MADURAIUDUMALPET TRICHY

DRAWL BY TNEB =(TN-01)+(TN-03) DRAWL BY TNEB =(TN-05)+(TN-07) DRAWL BY TNEB=(TN-09)+(TN-11)+(TN-73)

DRAWL BY TNEB =(TN-13)+(TN-15) DRAWL BY TNEB =(TN-17)+(TN-19)

SR-74SR-75

TIRUNELVELI-1&2

TN-33

TN-34

TN-31

TN-32

HOSUR

SALEM KOLAR

DRAWL BY TNEB=(TN-31)+(TN-33)

SR-30

HOSUR

SR-24SR-14

SR-67

SR-31 SR-32

TN-35

NELLORE 1&2

ALAMATHY

TN-36

TN-37

TN-38

TN-39

TN-40

SRIPERUMBUDUR

DRAWL BY TNEB =(TN-35)+(TN-37+(TN-39)

SR-31SR-32

SR-76 SR-77

AP-66 SR-62

RS-17

SR-67 SR-12RS-18 RS-19

SR-13 SR-70 SR-14

SR-65SR-66

SR-15SR-16RS-20

RS-21RS-21

TN-46

MADURAI-1&2

DRAWL BY TNEB=(TN-46)+ (TN-71)-(TN-83)-(TN-84)

TIRUNELVELI

TN-47

SR-41

SR-74 SR-75

TRIVANDRUM-1&2

SR-42

TN-73

TN-74

TN-71

TN-72

KARAIKUDY

KARAIKUDY

SR-47 SR-48

TIRUNELVELI

SR-47 SR-48

UDUMALPET-1&2

SR-80 SR-81

PUGALUR-1&2

TN-83 / TN-

84

KL-11 / KL-

12

PO-09

PO-10

PO-11

PO-12


SRLDC51-55


TRICHY

SR-46

KL01

KL-02

KL-03

KL-04

TRICHUR

KSEB

UDUMALPET

DRAWL BY KSEB=(KL-01)+(KL-03)

KL-05

TIRUNELVELI-1&2

DRAWL BY KSEB=(KL-05)+(KL-07)+(KL-09)

TRIVANDRUM

KL-06

KL-07

KL-08

SR-80 SR-81

KL-09

KL-10

TN-75

TN-76

TN-81

TN-82

PUGALUR

NLC TS-II

DRAWL BY TNEB =(TN-81)+(TN-75)

SR-80 SR-81

MADURAI-1&2

SR-84 SR-82

TN-59

TN-60

TN-48

TN-49

KALIVANTHAPATTU

KOLAR


SR-44

MADRAS

SR-43

TN-79

TN-80

TN-77

TN-78

MADURAI

SR-45

KARAIKUDINLC TS-II EXPN 2


TT-01

TT-02

TN-87

TN-88

ARASUR

UDUMALPET-2

DRAWL BY TNEB =(TN-87)+(TT-01)

TN-85 TN-86

UDUMALPET-1

KL-11 KL-12

EDAMON (Presently charged at 220 kv)

TIRUNELVELI

DRAWL BY KSEB= -(KL-11)-(KL-12)

PONDY

PO-08

PO-09

PO-10

PO-11

PO-12

PO-07

NEYVELI MADRAS

DRAWL BY PONDY= (PO-09)+(PO-11)


SRLDC51-55


WR-31 WR-32

RM-21 RM-22

RM-11 RM-12

WR-33 WR-34

GAJWEL

RM

-01

RM

-02

RM

-03

RM

-04

RM

-05

RM

-06

RM-15

RM-25

RM-16

RM-26

RM

-07

RM

-08

RM

-09

AP-15

AP-16

AP-13

AP-14

AP-11

AP-12

AP-07

AP-08

AP-09

AP-10

RM-14

RM-24

RM-13

RM-23

N'SAGAR

TTs

42 3

RM-28 RM-29 RM-30 RM-31RM-32

HVDC, BHADRAVATI

WR

APTRANSCO

400/

132kV

400/

220kV

400/

220kV

400/

220kV

400/

132kV

1 2 3 4 5 6

200MW 500MW200MW 200MW 500MW 500MW

RM

-47

7

500MW

RM

-49

HYDERABAD-3&4

1

3.2 (a) Location Diagram of SEMs at Ramagundam STPS, NTPC

RM-18

RM-38

RM-19

RM-39

WARANGAL

RM-17

RM-27

RM-20

RM-40

DITCHIPALLYMALKARAM


CK-11

CK-12

PG-05SR-64SR-63 SR-65 SR-66

SR-61 SR-60 SR-62

KPTCL

HOODY SOMANAHALLI CUDDAPAH SP'DURHOSUR

KOLAR HVDC

HOODY

POLE1POLE2

UNIT-6 UNIT-5 UNIT-4 UNIT-3TSTPP STG-I

TSTPP STG-II

POLE1POLE2

AF-3AF-2 AF-1

AF-3AF-2

AF-1

TALCHER HVDC

X

X

X

DC-12

DC-11 DC-09 DC-07DC-08 DC-10

CONV. TRF-1 CONV. TRF-2

TL-14TL-16

TL-17

TL-31 TL-32 TL-33 TL-34

TL-41 TL-42 TL-43

XXTL-15

TL-44

SUT-3 SUT-2 UNIT-2 UNIT-1 SUT-1

1no of

11kV Aux.

Supply

feeder

from

TSTPP-stg-I

2nos of

11kV Aux.

Supply

feeders from

TSTPP-Stg-II

3.2 (b) Location Diagram of SEMs at Talcher STPPP-II

PG-07PG-08

PG-09 PG-10

PG-11PG-12

TL-46

TL-45TL-58

TL-57

TL-48

TL-47

TL-50

TL-49

TL-52

TL-51

TL-60

TL-59


220KV BUS

MINES STATION TRANSFORMERS

NV-09 NV-10 NV-11NV-08NV-15NV-14NV-13NV-12

1 2 34

1 2 3 4

TNEB (TS-I)

TIE1 TIE2

TN-24 TN-25NV-03NV-17NV-16

STCMS-2 VillupuramKADLANGUDI

PO-03

PO-04

PO-01

PO-02

VILLAINUR BAHUR

TN-22TN-21TN-23

ICT-1 ICT-2NLC-TPS-I (Exp)

SALEM TRICHYPUGULUR PONDY

SR-17 SR-18 SR-19 SR-21SR-20

NV-02NV-01

NV-04 NV-05 NV-06 NV-07

4 5 6 7

400kV BUS

321

PONDY

NLC TS-II Stage-2

NLC TS-II Stage-1

210MW 210MW 210MW

210MW 210MW 210MW 210MW

NL-04NL-05 NL-06 NL-07

RS-17 RS-18 RS-19 RS-21RS-20

PN-03PN-01NL-09 NL-10 NL-11NL-08NL-15NL-14NL-13NL-12

TN-44 TN-45NL-03NL-17NL-16 TN-42TN-41

TN-43 NL-02NL-01

SR-24

NLC INSTALLED METERS (MAIN)

NLC INSTALLED METERS (CHECK)

CTU INSTALLED METERES

Aux. Supply from

220kV /33kV

St. Trf. From TS-I of NLC

commercial adjustment with TNEB

3.2 (c) Location Diagram of SEMs at NLC Stations

NL-33NL-32 NL-34 NL-35 NL-28 NL-29 NL-30NL-31

NL-36 NL-37

PN-21 PN-23

TN-61 TN-62 TN-63TN-64 TN-65NL-21 NL-22 NL-23

NL-24NL-25 NL-26 NL-27

RS-37RS-38

RS-39 RS-40

1 2

NE-03

NE-01

NE-04

NE-02

NE-06

NE-08

NE-07

NE-05

NE-15

NE-16

NE-13

NE-14

NE-09 NE-11

RS-41

NE-15

NE-16

NE-13

NE-14

NE-09 NE-11

NE-15

NE-16

NE-13

NE-14

NE-09 NE-11

NE-15

NE-16

NE-13

NE-14

NE-09 NE-11

NLC TSII (EXP)

Tie-4

1& 2

RS-23 RS-

22

SR-82 SR-

84


SP'KOIL I&II ACHARAPAKKAM

MA-01

MA-11MA-02

MA-12

ARNI

MA-03

MA-13

MA-04

MA-14

UNIT-1 UNIT-2

TN-26 TN-27TN-28

TN-29

MADRAS ATOMIC POWER PLANT

220 kV Bus

3.2 (d) Location Diagram of SEMs at MAPS


GUTTUR-I & II

KG-21

KODASALLIKADRA

KG-23 KG-24

KG-11

KG-01

UNIT-1 (220MW)

400 kV Bus 220 kV Bus

UNIT-4(Future)

ICT-I&II

SUT-III

KG-07

KG-17

SUT-IV

KG-08

KG-18

NARENDRA I&II

KG-25KG-26

3.2 (e) Location Diagram of SEMs at KGS

KG-12

KG-02

UNIT-2 (220MW)

KG-13

KG-03

SUT-1

KG-14

KG-04

SUT-2

KG-22

KG-15

KG-05

UNIT-3 (220MW)

KGS Stage-I KGS Stage-II

KG-16

KG-06


`

BARSUR(CSEB)LOWER

SILERU

UPPER

SILERU

ARAKU

AP-57 AP-56AP-55

BALIMALA MACHKUND

WR

ER (ORISSA)

220kV

HVDC

22

0kV

T

N

E

B

PONDYPO-05

PO-06

KAKINADA

AP-54TN-57

SEDAM TANDUR

GOOTYK

P

T

C

L

AP-53TN-56

THIRUVALAM CHITTOOR

BELLARY

SULURPETGUMMIDIPUNDI

220kV

132kV

220kV

13

2kV

3.3 (a) Location diagrams of SEMs in AP

13

2kV

AP-01/ 69AP-02/ 70GAZUWAKA

AP-03/43AP-04/44VIJAYAWADA

GAZUWAKA

KALPAKKA

VSTPS- IV

NELLORE

AP-62/64

AP-45/46AP-61/63

SR-72/73

VEMAGIRI

AP-05/41AP-06/42

KHAMMAM

132/400kV

RSTPS

2 ICTsAP-08/10AP-07/09

3 ICTsAP-12/14/16

RSTPS

AP-11/13/15

220/400KV

AP-18/20/22 AP-17/19/21

HYDERABAD

AP-24/26/28

N'SAGAR

AP-23/25/27N'SAGAR

AP-30/38AP-29/37

CUDDAPAH

AP-32/40AP-31/39

AP-71

AP-78/80 AP-77/79

MAMIDIPALLI

KHAMMAM

CK-22

RM-16

AP-59

AT-17MEHBOOBNAGA

R

MALKARAM RAICHUR

AP-86 AP-85KURNOOL

SR-09AP-65CHITTOOR

SR-30AP-66

PG-01 PG-03

Pole-1&2 Aux.

Consumption

AP-87AP-88

A

P

T

R

A

N

S

C

O

AP-58

YANAM

3 ICTs

AP-83/AP-84

3 ICTs

220/400KV

220/400KV

2 ICTs

220/400KV

AP-81/82

2ICTs

220/400KV

33/220/400KV

CK-53

AP-51

CK-55 AP-52

CK-21 AP-60

I

S

T

S

220kV

220kV

2 ICTs

220/400KV

RM-28/29

RM-30/31/32

SR-78/79

PG-25

WARANGAL

BOOPALAPALLI

DITCHIPALLI

GAWEL

AP-73/75

VEMAGIRI

AP-47/48

RM-20, RM-40AP-49

AP-72MAMIDIPALLY

AT-02 SR-15

AT-01 SR-04

AT-03/05

AT-13/14

AT-04/06

AT-15/16

KALPAKKA

GAJWEL

KURNOOL GOOTY

GAZUWAKA

GAZUWAKA

KHAMMAM

KHAMMAM

VIJAYAWADA

VIJAYAWADA

VIJAYAWADA

HYDERABAD

HYDERABAD

GOOTY

AP-34/36 AP-33/35

CHITTOOR

2 ICTs

2ICTs

220/400KV

MALKARAMAT-18 SR-05

MEHBOOBNAGA

R

HYDERABAD

HYDERABAD

HYDERABAD

GOOTY

N'SAGAR

RSTPS

RSTPS

RSTPS

WARANGAL

WARANGAL

CUDDAPAH

CUDDAPAH

SRIPERUMBUDUR

NELLORE


`

````

AP-51CK-53

TANDUR

GOOTY

A P

AP-52CK-55BELLARY

SEDAM

HOSURYERANDAHALLI

TNEB

BANGALORE

N'SAGAR

MBD

IS

T

S

CK-51KL-55

KL-56 CK-52

KONAJE

KADAKOLA

MANJESWAR

KANIAMPETTA

KSEB

KG-24

KG-23

KG-21

KODASALLI

KADRA

GUTTUR-1

K

G

S

CK-60

CK-61

CHIKKODI

TALANGENE (Kolhapur)

MSEB(WR)

220kV

110kV

TN-55CK-54220kV

220kV

220kV

220kV

220kV

220kV

220kV

220kV

GO-03

GO-04

GO-01

GO-02

AMBEWADI

XELDEMXELDEM

PONDA

PONDA

PONDA

SUPA

G

O

A(SR)

CK-58

CK-59

CK-56

CK-57

220kV

220kV

110kV

110kV

HOODY

SR-63

SR-64

KOLAR400kV

KG-25

NARENDRA400kV

KG-26

NARENDRA400kV

HOODY

CK-11CK-12

KOLARKOLAR

220/400kV

PG-05

Pole-1&2 Aux.

3.3(b) Location Diagram of SEMs in KPTCL System

MUSHTUNGI (Kolhapur)

KPTCL

CK-17CK-18

NARENDRA NARENDRA

CK-01CK-02SOMANAHALLI SOMANAHALLI

CK-03CK-04 220/400kV

SOMANAHALLI SOMANAHALLI

CK-21MEHBOOBNAGAR

AP-60

RAICHUR400kV

220/400kVCK-15CK-16

HIRIYURHIRIYUR

400kVCK-38GOOTY

AP-89NELAMANGALA

NELAMANGALA

CK-37400kV

CK-36

SOMANAHALLI

CK-05CK-06220/400kV

MUNIRABAD MUNIRABAD

CK-21RAICHUR

4 5 6 7

CK-23

CK-05

CK-06

CK-24

CK-27

CK-26 GUTTUR

CK-25

BTPS

JSW

NELAMANGALA

CK-28

CK-09

CK-10

CK-30

CK-31

CK-07

CK-08

CK-15

CK-16

HIRIYUR

CK-29

CK-32 CK-33

CK-35

CK-48

CK-34

Talaguppa

MEHBBOBNAGAR

MUNIRABAD

SOMANAHALLI

GOOTY

KOLAR

CK-38

Raichur-Hoody section

CK-13

CK-14

GOOTY

KAIGA-1&2

CK-46CK-47NARENDRA NARENDRA

220/400kV

MYSOREMYSORE

220/400KV

MYSOREMYSORE

CK-41 CK-40

CK-42CK-43

CK-21RAICHUR

4 5 6 7

CK-23

CK-05

CK-06

CK-24

CK-27

CK-26 GUTTUR

NELAMANGALA

CK-28

CK-07

CK-08

CK-15

CK-16

HIRIYUR

CK-29

CK-32 CK-33

CK-35

CK-36

CK-34

Talaguppa

MEHBBOBNAGAR

MUNIRABAD

SOMANAHALLI

GOOTY

KOLAR

CK-38

Raichur-Hoody section

GOOTY

CK-19

CK-20

KG-224000kV

GUTTUR-2

CK-24CK-23400kV

CK-27MUNIRABAD

MUNIRABADRAICHUR

GUTTUR

CK-34

CK-28

GUTTUR HIRIYUR

CK-33

CK-35

NELAMANGALA HIRIYUR

NELAMANGALA

CK-62400kV

CK-49

SOMANAHALLI

NELAMANGALA

CK-63400kV

CK-48

SOMANAHALLI

NELAMANGALA MYSORE

CK-44

CK-45

400kV

400kV

400kV

Mysore

CK-45CK-44CK-49

AP-65RAICHUR 400kV

AP-64CK-64

CK-65 GOOTY

GOOTYCK-64 CK-65

400kV

CK-19

CK-08 CK-07

CK-20

CK-13 CK-09


KL-01KL-02

KL-03KL-04 I

S

T

S

KL-56

MANJESWARKONAJE

K

P

T

C

L

TN-51

TN-83

TN-84

TN-53

TN-58

KL-51

KL-11

KL-12

KL-53

KL-58

THENI

UDUMALPET

KUZHITHURAI

MUZHIYAR

IDUKKI

PARASALA

K

S

E

B

CK-52

KL-55

KANIYAMPETTA

KADAKOLACK-51 220kV

110kV

T

N

E

B

TN-54

UPPATTIKOOTHMUNDA

220kV

220kV

220kV

66kV

400kV

400kV

KL-05KL-06

220/400kV

3.3(c) Location diagram of SEMs in KSEB

TRIVANDRUM

TRICHUR

TRIVANDRUM

TRIVANDRUM

TRIVANDRUM

TRIVANDRUM

TRIVANDRUM

KL-08 KL-07

KL-10 KL-09

220 KV

TRICHUR

EDAMON

TRICHUR

TRICHUR

TRIVANDRUM

TIRUNELVELI

TIRUNELVELI


AP-53TN-56

TN-57 AP-54

CHITTOOR

SULURPET

APTHIRUVALEM

GUMMIDIIPUNDI

I

S

T

S

TN-55

HOSURYERANDAHALLI

KPTCL

K

S

E

B

T

N

E

B

CK-54

TN-51KL-51

THENIM'OOZHIYAR

TN-58KL-58

KUZHITHURAIPARASALA

TN-53KL-53

UDUMALPETIDUKKI

230kV 230kV

230kV

230kV

TN-52KL-52

KODIKURICHIEDAMON

230kV

230kV

230kV

TN-54

UPPATTIKOOTHAMUNDA

66kV

400kV

SALEM400kV

SRIPERUMBUDUR

TN-01TN-02

TN-03

TN-04

NE-13

NE-14

NLC-TPS-I (Expansion)

NLC-TS-I NLC-TS-I

3.3(d) Location diagram of SEMs in TNEB

NE-15

NE-16

6T 7T

NE-09 NE-11

UDUMALPET

TN-09/11/73TN-10/12/74

230/400kV

UDUMALPET

TRICHY TRICHY

33kV/

220kV

33kV/

220kV

NL

C T

S-I

I S

t. 1

TIE-2

TIE-1TN-24, TN-44, TN-64

KADALANGUDITN-23, TN-43, TN-63

VILLUPURAM -I

TN-22, TN-42, TN-62

TN-21, TN-41, TN-61

STCMS-2

TN-25, TN-45, TN-65

MA-01/11 TN-26SPKOIL-1

230kV

MA-02/12TN-27

230kV

SPKOIL-2

TN-28MA-03/13

230kVARNI

TN-29MA-04/14

230kVACHARAPAKKAM

NELLORE

A

L

A

M

A

T

H

Y

400kV

SR-76

SR-77

400kV

SR-31

SR-32

230kV

230kV

230kV

230kV

230kV

KA

LP

AK

KA

M

TN-35/37/ 39TN-36/38/40

230/400kV

3 ICTs

TN-05TN-06

TN-07

TN-08

TN-13/15TN-14/16

230/400kV

SALEM

TN-17/19TN-18/20

230/400kV

MADURAIMADURAI

3 ICTs

2 ICTs

2 ICTs

TN-31/33TN-32/34HOSURHOSUR

230/400kV

2 ICTs

TN-75/81TN-76/82

PUGALURPUGALUR

230/400kV

2 ICTs

TN-48/59TN-49/60

KALIVANTHAPATTUKALIVANTHAPATTU

230/400kV

2 ICTs

TN-46/71TN-47/72

THIRUNELVELITHIRUNELVELI

230/400kV

2 ICTs

TN-77/79TN-78/80

KARAIKUDIKARAIKUDI

230/400kV

2 ICTs

2 ICTsTN-87/TT-01

TN-88/TT-02

ARASUR

ARASUR

SRIPERUMBUDUR


NLC-TS-II

(Stage.I)

PONDY

PO-06

PO-01

PN-01

PN-21

23

0kV

23

0kV

AP

PO-05

132kVKAKINADA

VIL

LIA

NU

R

PO-04

BA

HU

R

PO-03

PN-03

PN-23

PO-02

YANAM

3.3(e) Location diagram of SEMs in Pondicherry

ISTS

PO-09 / PO-10

PO-11 / PO-12


GO-01CK-58

220 kV

3.3(f) Location diagram of SEMs in Goa

K

P

T

C

L

GOA

(SR)

AMBEWADI XELDEM

PONDA

GO-02CK-59

220 kV

AMBEWADI

SUPA

CK-56

110 kV

CK-57

110 kV

SUPA

PONDA

GO-03

GO-04

PONDA


East Bus

3.3(g) Location Diagram of SEMs in PowerGrid HVDC System

AP

-02

JEYPORE

AP

-01

DC-03

DC-01

AC

Bypass

DC-04

AP

-81

AP

-82

KALAPAKA 1&2

VISAKHAPATNAM

VIJAYAWADA-I,II,III

DC-02

DC-13

PG-01SR

-25

PG-03

Pole-2 Aux.

Consumption

DC-14

Pole-1 Pole-2

Pole-1 Aux.

Consumption

CK-11/66

CK-12/67

PG-05

SR

-64

SR

-63

SR

-61

SR

-60

SR

-62

KPTCL

KOLAR HVDC

POLE1POLE2

AF-3AF-2

AF-1

DC-12

DC

-11

DC

-09

DC

-07

DC

-08

DC

-10CO

NV

. T

RF

-1

CO

NV

. T

RF

-2

SR

-65

SR

-66

HOSUR-1&2SomnahalliCUDDAPAH

SP'DURHOODY-1&2

Pole-1&2

Aux.

Consumptio

11kV Aux.Supply feeders from

Pole-1&2

Auxiliary

Consumption

TALCHER HVDC

11kV/415V Aux. Transformer-1



PG-07 PG-08

PG-10PG-09

PG-11 PG-12

TSTPP-Stg-IITSTPP-Stg-I

2 ICTs

400/220KV


SECTION – 4

COMPUTATION OF INJECTION & DRAWAL

COMPUTATION OF INJECTION & DRAWAL

4.1 Accounting Methodology

4.2 Computation of injection by ISGSs / other Regions

4.2(a) Ramagundam STPS

4.2(b) Talcher STPP-II

4.2(c) NLC TS-2 Stage-1, TS-2 Stage-2

4.2(d) NLC TPS-1 Expansion

4.2(e) Madras Atomic Power Station

4.2(f) Kaiga Generating Station

4.2(g) Western Region

4.2(h) Eastern Region

4.3 Computation of drawal by Drawee Utilities

4.3(a) APTRANSCO system

4.3(b) KPTCL system

4.3(c) KSEB system

4.3(d) TNEB system

4.3(e) Pondicherry system

4.3(f) Goa system

4.3(g) PG-HVDC system

SRLDC 68-71 SEMs IN SOUTHERN

REGION

4.1 ACCOUNTING METHODOLOGY

1. Definitions

(a) Main Meters: Meters which would primarily be used for energy

accounting and billing. For example meters connected on 400 kV side of an ICT

shall be called as main meters.

(b) Check Meters: Meters connected to the same core of CT/PT to which main

meter is connected. They shall be used for energy accounting and billing in case

of failure of main meter.

(c) Standby meters: Meters connected to CTs and VTs other than those used for

main and check meters. They shall be used or energy accounting and billing in

case of failure of both main and check meters. For example meters connected on

220 kV side of an ICT shall be called as standby meters.

2. General:

(a) In accordance with the sign convention described in Section No.1.2, Main

and Check meters record data with same sign whereas the corresponding

Standby meter records data with opposite sign.

(b) While carrying out Energy Accounting, SEMs on feeders not carrying

ISGS power are not considered.

(c) To facilitate computations and check their correctness, various ‘Ficticious’

meters are defined using sum of a few meters. For example,


REGION

i) For a Generating Station, for computing the total injection by

the ISGS, a ficticious meter is defined using the sum of all

meters on GTs/TTs. Similarly one more ficticious meter is

defined, using sum of meters on outgoing feeders. Various

combinations are worked out using Main meters, Check

meters and Standby Meters.

ii) For a drawee utility, for computing its total drawal fromGrid,

a ficticious meter is defined using sum of all the meters at its

touch points.

3. Criteria for Energy Accounting

(a) Injection by NTPC stations

Data of SEMs connected on outgoing feeders is used.

(b) Injection by stations other than NTPC.

Data of SEMs connected on GT side feeders is used.

(c) Drawal by utilities

At Generating Stations/CTU substations : Data of SEMs connected on HV

side of ICTs is used. For State owned 400 kV lines connecting to CTU

network, data of SEM on the line at CTU end is used.

At State owned substations connecting 220 kV/132 kV/110 kV inter-State

lines: Data of SEMs connected at respective end is used.


REGION

4. Data Validation and pair checks:

For ensuring correctness of readings and detecting under recording by meters,

block-wise data of Main Meters, Check Meters and Standby Meters on a

particular feeder are compared using suitable tolerances. Such pair check is

carried out for some Ficticious meters also wherever one-one to one

correspondence exists. Further, energy loss at a particular station is also

computed using Kirchoff’s law, to detect any under recording by a meter.

5. Computations in case of Under-recording of Main SEMS :

(a) Whenever a Main meter is under recording (in comparison with the

corresponding Standby/Check meter) due to reasons such as fuse failure

etc., an adjustment is made using the difference in the reading with respect

to that of standby/check meter so that the under recording is compensated.

While doing so, suitable Loss factors applied in general are as given

below:

In case of ICTs, no loss factor is applied.

In case of 400 kV Line, a loss factor of 1% is applied.

In case of 220 kV/132 kV Lines, a loss factor of 2% is applied.

(b) Wherever Standby meters are not available, if both Main and Check

meters are under recording, then Algebraic Sum of the meters connected

to the Bus will be considered for arriving at the adjustment to be done for

such under recording.


REGION

6. Sharing of losses in State owned 400 kV lines on regional basis

(a) Losses on KPTCL owned 400 kV lines in Raichur-Guttur-Hiriyur-

Nelamangala-Hoody section are being shared by all constituents. For

details please refer to Sub-Section 4.3(b) ‘Computation of drawal by

KPTCL from Grid’.

(b) Losses on 400 kV Hyderabad-Mamidipally S/C line are being shared by

all constituents. Accordingly for computing APTRANSCO’s drawal from

Hyderabad S/S, SEM installed at Mamidipally end on 400 kV Hyderabad-

Mamidipally is used.

(c) Losses on 400 kV Vijayawada-Srisailam-Mamidipally line-II are being

shared by all constituents. A loss factor of 2% is applied on SEM installed

on 400 kV Srisailam line-II at Vijayawada (considering 1% for

Vijayawada-Srisailam Line-II and 1% for Srisailam-Mamdipally line-II).

7. Computations of Reactive Energy

(a) Reactive power exchange by a beneficiary at an ISGS shall not be

considered for computing the reactive energy drawal by that beneficiary

(as per item No.6.6.1 of IEGC).

(b) Generally for computation of Reactive energy, SEMs at same points as the

active energy are considered. However, at touch points between CTU and

State owned 400 kV lines (except) in case of KPTCL) data of SEM at

CTU end shall be considered for determining the reactive energy

injection/drawal by the beneficiary.

(c) No adjustment is made in the computation of reactive energy in case of

under recording of SEM due to reasons such as fuse failure etc.

4.2 COMPUTATION OF INJECTION BY ISGS / OTHER REGIONS

4.2(a) Net Injection by RSTPS

Sl.

No.Point of Injection Feeder/ICT/GTs/TTs

Main

Meter

Check

Meter, if

any

Standby Meter Remarks

400 kV side of ICT-I (AP-07) (RM-28) #(AP-08)

400 kV side of ICT-II (AP-09) (RM-29) #(AP-10)

400 kV side of ICT-III (AP-11) (RM-30) (AP-12)

400 kV side of ICT-IV (AP-13) (RM-31) (AP-14)

400 kV side of ICT-V (AP-15) (RM-32) (AP-16)

400 kV Bhadrawati line-I (RM-11) (RM-21) (WR-33)

400 kV Bhadrawati line-II (RM-12) (RM-22) (WR-34)

400 kV N'Sagar line-I (RM-13) (RM-23) (SR-28)

400 kV N'Sagar line-II (RM-14) (RM-24) (SR-29)

400 kV Hyderabad line-I (RM-15) (RM-25) (SR-04)

400 kV Hyderabad line-II (RM-16) (RM-26) (SR-05)

400 kV Hyderabad line-III (RM-18) (RM-38) (SR-22)

400 kV Hyderabad line-IV (RM-19) (RM-39) (SR-23)

400 kV Khammam line (RM-17) (RM-27) (SR-27)

400 kV Ditchipalli line (RM-20) (RM-40) (AP-49)

400 kV side of GT-1 (RM-01)






400 kV side of TT-1 (RM-07)





Total Injection by RSTPS

(a) Injection of RSTPS by using Main meters (RM-91)* = (AP-07)+(AP-09)+(AP-11)+(AP-13)+(AP-15) +

(RM-11)+(RM-12)+(RM-13)+(RM-14) +(RM-15)+(RM-16)+(RM-17)+(RM-18)+(RM-19)+(RM-20)

(b) Injection of RSTPS by using Check meters (RM-94)*= (RM-28)+(RM-29)+(RM-30)+(RM-31)+

(RM-32)+(RM-21)+(RM-22)+(RM-23)+(RM-24)+(RM-25)+(RM-26)+(RM-27)+(RM-38)+(RM-39)+(RM-40)

(c) Injection of RSTPS by using Standby meters on GT side (RM-95)* = (RM-01)+(RM-02)+

(RM-03)+(RM-04)+ (RM-05)+(RM-06)+(RM-47)-(RM-07)-(RM-08)-(RM-09)-(RM-49)

Injection by RSTPS Stage -III (RM-93)*= (RM-47)-(RM-49)

Injection by RSTPS Stage -I&II (RM-92)*= (RM-91)-(RM-93)

#Meters connected with

reverse polarity

1RSTPS Stage I,II

& III

RSTPS Stage III2

* Ficticious meters created for computations.


4.2(b) Net Injection by Talcher Stage-II

Sl.


Main

Meter

Check

Meter, if

any


400 kV I/C-1 with TSTPP stg-I (TL-14) (TL-16)

400 kV I/C-2 with TSTPP stg-II (TL-15) (TL-17)

400kV HVDC Feeder -I (TL-31) (TL-41)

400kV HVDC Feeder -II (TL-32) (TL-42)

400kV HVDC Feeder -III (TL-33) (TL-43)

400kV HVDC Feeder -IV (TL-34) (TL-44)

400 kV side of GT-3 (TL-45)




400kV side of SUT-2 (TL-57)

400kV side of SUT-3 (TL-59)

11 kV side of Aux.Transf.-I (PG-07) (PG-08)

11 kV side of Aux.Transf.-II (PG-09) (PG-10)

11 kV side of Aux.Transf.-III (PG-11) (PG-12)

a) Using Main meters :

Injection from ER at TSTPP St-I&II Bus coupler (TL-AC)* = (TL-14)+(TL-15)

Injection on HVDC feeders at TSTPP-II (DC-96)* = (TL-31)+(TL-32)+(TL-33)+(TL-34)

Auxilairy consumption by Talcher HVDC from TSTPP (PG-TM)* = (PG-07) +(PG-09) +(PG-11)

Injection by TSTPP-II (TL-92)* = (DC-96)-(TL-AC)+(PG-TM)

b) Using Check meters :

Injection from ER at TSTPP St-I&II Bus coupler (TL-IC)* = (TL-16)+(TL-17)

Injection on HVDC feeders at TSTPP-II (TL-HV)* = (TL-41)+(TL-42)+(TL-43)+(TL-44)

Auxilairy consumption by Talcher HVDC from TSTPP (PG-TS)* = (PG-08) +(PG-10) +(PG-12)

Injection by TSTPP-II (TL-93)* = (TL-HV)-(TL-IC) +(PG-TS)

(c) Using Standby meters on GT side:

Injection by TSTPP-II on GT side (TL-91) = (TL-45)+(TL-47)+(TL-49)+(TL-51) -(TL-57)

-(TL-59)+(PG-TM)

1

2

PG-07,PG-09,PG-11 are

connected with reverse

polarity ,care to be taken

while computing injection.

TALCHER-

HVDC

TALCHER

STAGE-II



4.2(c) Net Injection by NLC TS-II Stg. 1 & 2

Sl.


Main

Meter

Check

Meter, if

any


230 kV side of GT-1 (NL-01) (NL-21)







230 kV side of ST-1 (NL-08) (NL-28)




230kV side of MF-1 (NL-12) (NL-32)




Note : SEMS installed by NLC are used for computations

a) Using Main meters :

NLC TS-II(I) Gross Generation (NY-01)* = (NL-01)+(NL-02)+(NL-03)

NLC TS-II(II) Gross Generation (NY-02)* = (NL-04)+(NL-05)+(NL-06)+(NL-07)

Total Gross Generation (NY-03)* = ((NY-01)+(NY-02)

Total Auxiliary Consumption (NY-04)* = (NL-08)+(NL-09)+(NL-10)+(NL-11)

Auxiliary Consumption apportioned to NLC-II(Stage-I) (NY-05)* = (NY-04)(NY-01)/(NY-03)

Auxiliary Consumption apportioned to NLC-II(Stage-II) (NY-06)* = (NY-04)(NY-02)/(NY-03)

Injection by NLC-TS-II(Stage-I) (NV-G1)* = (NY-01) - (NY-05)

Injection by NLC-TS-II(Stage-II) (NV-G2)* = (NY-02) - (NY-06)

NLC Mines-I allocation from NLC-II St-I (M1-AL)* = (NV-G1)*0.0794

NLC Mines-I allocation from NLC-II St-II (M2-AL)* = (NV-G2)*0.0595

NLC Mines-I total allocation from NLC-II (MT-AL)* = (M1-AL)+(M2-AL)

Total drawal by NLC Mines (NM-94)* = (NL-12)+(NL-13)+(NL-14)+(NL15)

Drawal by NLC Mines from NLC-II St-I (M1-AC)* = (NM-94)*(M1-AL)/(MT-AL)

Drawal by NLC Mines from NLC-II St-I (M2-AC)* = (NM-94)*(M2-AL)/(MT-AL)

Net Injection by NLC-TS-II(Stage-I) (NV-91)* = (NV-G1)-(M1-AC)

Net Injection by NLC-TS-II(Stage-II) (NV-92)* = (NV-G2)-(M2-AC)

(b) Using Check meters :

NLC TS-II(I) Gross Generation (NY-C1)* = (NL-21)+(NL-22)+(NL-23)

NLC TS-II(II) Gross Generation (NY-C2)* = (NL-24)+(NL-25)+(NL-26)+(NL-27)

Total Gross Generation (NY-C3)* = ((NY-C1)+(NY-C2)

Total Auxiliary Consumption (NY-C4)* = (NL-28)+(NL-29)+(NL-30)+(NL-31)

Auxiliary Consumption apportioned to NLC-II(Stage-I) (NY-C5)* = (NY-C4)(NY-C1)/(NY-C3)

Auxiliary Consumption apportioned to NLC-II(Stage-II) (NY-C6)* = (NY-C4)(NY-C2)/(NY-C3)

Injection by NLC-TS-II(Stage-I) (NC-G1)* = (NY-C1) - (NY-C5)

Injection by NLC-TS-II(Stage-II) (NC-G2)* = (NY-C2) - (NY-C6)

NLC Mines-I allocation from NLC-II St-I (C1-AL)* = (NC-G1)x 0.0794

NLC Mines-I allocation from NLC-II St-II (C2-AL)* = (NC-G2)x 0.0595

NLC Mines-I total allocation from NLC-II (CT-AL)* = (C1-AL)+(C2-AL)

Total drawal by NLC Mines (NM-95)* = (NL-12)+(NL-13)+(NL-14)+(NL15)

Drawal by NLC Mines from NLC-II St-I (C1-AC)* = (NM-95)x (C1-AL)/(CT-AL)

Drawal by NLC Mines from NLC-II St-I (C2-AC)* = (NM-95)*(C2-AL)/(CT-AL)

Net Injection by NLC-TS-II(Stage-I) (NC-91)* = (NC-G1)-(C1-AC)

Net Injection by NLC-TS-II(Stage-II) (NC-92)* = (NC-G2)-(C2-AC)

1Neyveli TS-II Stg.

I & II



4.2(d) Net Injection by NLC TPS-I Expansion

Sl.


Main

Meter

Check

Meter, if

any


400 kV side of GT-1 (NE-01) (NE-03)


220 kV Station Transformer 6T (NE-13) (NE-14) (NE-09)

220 kV Station Transformer 7T (NE-15) (NE-16) (NE-11)

400KV Trichy feeder (NE-06) (NE-08) (SR-24)

400KV NLC II St-II feeder (NE-05) (NE-07) (SR-21)

(a) Using Main meters

Gross Generation (NX-91)* = (NE-01)+(NE-02)

Total Auxiliary Consumption (NX-97)* = (NE-13)+(NE-15)

Net Injection by NLC TPS-I Exp. (NX-96)* = (NX-91)-(NX-97)

(b) Using Check meters

Gross Generation (NX-92)* = (NE-03)+(NE-04)

Total Auxiliary Consumption (NX-98)* = (NE-14)+(NE-16)

Net Injection by NLC TPS-I Exp. (NX-99)* = (NX-92)-(NX-98)

(c) Using Standby meters

Injection on outgoing feeders (NX-94)* = (NE-05)+(NE-06)

Station auxiliary 33kv side (NX-93)* = (NE-09)+(NE-11)

Total injection (NX-95)* = (NX-94)+(NX-93)

4.2(d) Net Injection by NLC TPS-II Expansion

Sl.


Main

Meter

Check

Meter, if

any




400KV TS-2 feeder (NE-25) (NE-26)

400KV Pugulur feeder (NE-27) (NE-28)


Injection on outgoing feeders =(NE-25)+(NE-27)

(b) Using Check meters

Injection on outgoing feeders =(NE-26)+(NE-28)

(c) Using Standby meters

Gross Generation =(NE-21)+(NE-23)

1Neyveli TPS-I

Expansion

1Neyveli TPS-II

Expansion



4.2(e) Net Injection by MAPSSl.


Main

Meter

Check

Meter, if Standby Meter Remarks

230 kV S.P.Koil-1 (MA-01) (MA-11) (TN-26)

230 kV S.P.Koil-2 (MA-02) (MA-12) (TN-27)

230 kV Arni (MA-03) (MA-13) (TN-28)

230 kV Acharapakkam (MA-04) (MA-14) (TN-29)

Injection by MAPS

(a) Using Main meters (MA-91)* = (MA-01)+(MA-02)+(MA-03)+(MA-04)

(b) Using Check meters (MA-92)* = (MA-11)+(MA-12)+(MA-13)+(MA-14)

(c) Using Standby meters (MA-93)* = -(TN-26) -(TN-27)-(TN-28)-(TN-29)

4.2(f) Net Injection by KGS

Sl.


Main

Meter

Check

Meter, if

any


220 kV side of GT-1 (KG-01) (KG-11)



220 kV side of SUT-1 (KG-03) (KG-13)




400kV Guttur Line-I (KG-21)

400kV Guttur Line-II (KG-22)

220kV Kadra Line (KG-23)

220kV Kodasalli Line (KG-24)

400kV Narendra Line-I (KG-25)

400kV Narendra Line-II (KG-26)

Injection by KGS

Total injection by KGS (KG-91)* = =(KG-1)+(KG-2)+(KG-5)-(KG-3)-(KG-4)-(KG-7)-(KG-8)

Injection by unit I&II (KG-94)* = (KG-01)+(KG-02)-(KG-03)-(KG-04)

Injection by unit III (KG-95)* = (KG-05)-(KG-07)-(KG-08)

(b) Using Check meters (KG-92)* = (KG-11)+(KG-12)+(KG-15)-(KG-13)-(KG-14)-(KG-17)-(KG-18)

(c) Using Standby meters on feeders (KG-93)* = (KG-21)+(KG-22)+(KG-23)+(KG-24)+(KG-25)+(KG-26)

KAIGA


1

1 KALPAKKAM



4.2(g) Net Injection by WR

Sl.


Main

Meter

Check

Meter, if

any


400kV West Bus-I (WR-31)

400kV West Bus-II (WR-32)

400kV South Bus-I #(WR-33)

400kV South Bus-II #(WR-34)

Injection by WR

(a) Using West Bus meters (DC-97)* = (WR-31)+(WR-32)

(b) Using South Bus meters (DC-98)* = -(WR-33)-(WR-34)

4.2(h) Net Injection by ER

Sl.


Main

Meter

Standby

Meter at

East bus

HVDC

Standby Meter

at South bus

HVDC

Remarks

400kV Jeypore line I ER-84 (DC-03)(DC-01),

(DC-02)

400kV Jeypore line II ER-85 (DC-04) (DC-14)

400 kV I/C-1 with ER (TL-14) (TL-16)

400 kV I/C-2 with ER (TL-15) (TL-17)

Injection by ER

(a) Using main meters

Injection through Gazuwaka (DC-92)* = ER-84 + ER-85

Injection through Talcher I/C (TL-AC)* = (TL-14+(TL-15)

Total Injection from ER (DC-95)* = (DC-92)+(TL-AC)

(b) Using Standby meters

Injection through Gazuwaka (DC-91)* = =-(DC-03)-(DC-04)

Injection through Talcher I/C (TL-IC)* = (TL-16+(TL-17)

Total Injection from ER (DC-94)* = (DC-91)+(TL-IC)

#Connected with reverse

polarity,care to be taken

while computing injection

TALCHER

STAGE-II

Bhadravathi

HVDC

2

3

Gazuwaka HVDC

1

DC-01.DC-02,DC-14


polarity,care to be taken

while computing injection.



4.3 COMPUTATION OF DRAWAL BY DRAWEE UTILITIES

4.3(a) Drawl by APTRANSCO from Grid

At ISTS network

Sl.

No.Metering point Feeder/ICTs

Main

Meter

Check

Meter, if

any


400 kV side of ICT-I (AP-01) (AP-02)

400 kV side of ICT-II (AP-69) (AP-70)

33kV side of Aux. Transformer-I (PG 01)Aux. cons.of HVDC pole-1

33kV side of Aux. Transformer-II (PG 03)Aux. cons.of HVDC pole-2

400 kV Kalpaka Line-I (AP 81)

400 kV Kalpaka Line-2 (AP 82)

Drawal at Gazuwaka (AP-GZ)*=

400 kV side of ICT I (AP-03) (AP-04)

400 kV side of ICT II (AP-43) (AP-44)

400 kV VTPS IV Line-I (AP-73)

400 kV VTPS IV Line-II

(AP-75) x

0.98 refer to para no. 4.1.6(c)

Drawal at Vijayawada (AP-VJ)*=

400 kV Vijayawada Line-I (AP-61) (AP-62)

400 kV Vijayawada Line-II (AP-63) (AP-64)

400 kV Vijayawada Line-III (AP-45) (SR-72)

400 kV Vijayawada Line-IV (AP-46) (SR-73)

400 kV Gazuwaka Line-I (AP-47) (SR-78)

400 kV Gazuwaka Line-II (AP-48) (SR-79)

Drawal at Vemagiri (AP-VM)*=

400 kV side of ICT I (AP-05) (AP-06)

400 kV side of ICT II (AP-41) (AP-42)

400 kV Mamidipally line-I (AP-77) (AP-78)

400 kV Mamidipally line-II (AP-79) (AP-80)

400 kV Kalpaka line-I (AP-83)

400 kV Kalpaka line-II (AP-84)

Drawal at Khammam (AP-KM)*=

400 kV side of ICT-1 (AP-07) (RM-28) (AP-08)

400 kV side of ICT-II (AP-09) (RM-29) #(AP-10) # Reverse polarity

400 kV side of ICT-III (AP-11) (RM-30) (AP-12)

400 kV side of ICT-IV (AP-13) (RM-31) (AP-14)

400 kV side of ICT-V (AP-15) (RM-32) (AP-16)

400kV Ditchipally line (RM-20) (RM-40) (AP-49)

Drawal at RSTPS (AP-RM)*=

400 kV side of ICT-1 (AP-17) (AP-18)


400 kV side of ICT-III (AP-21) (AP-22)

400 kV Mamidipalli line (AP-72) (AP-71) refer to para no. 4.1.6(b)

Drawal at Hyderabad (AP-HY)*= (AP-17)+(AP-19)+(AP-21)-(AP-72)

Gazuwaka

Vijayawada

6

Khammam

RSTPS

Vemagiri

Hyderabad

1

2

4

5

3

(AP-07)+(AP-09)+(AP-11)+(AP-13)+(AP-15)+(RM-20)

(AP-61)+(AP-63)-(AP-45)-(AP-46)-(AP-47)-(AP-48)

(AP-01)+(AP-69)-(PG-01)-(PG-03)+(AP-81)+(AP-82)

(AP-03)+(AP-43)+(AP-73)+(AP-75)x 0.98

(AP-05)+(AP-41)+(AP-77)+(AP-79)+(AP-83)+(AP-84)



Sl.


Main

Meter

Check

Meter, if

any


400 kV side of ICT-1 (AP-23) (AP-24)


400 kV side of ICT-III (AP-27) (AP-28)

Drawal at N'Sagar (AP-NS)*=



Drawal at Cuddapah (AP-KD)*=



Drawal at Gooty (AP-GY)*=

400 kV Bus-I Interconnector (PG) (AP-33) #(AP-34)

400 kV Bus-II Interconnector (PG) (AP-35) #(AP-36)

Drawal at Nellore (AP-NL)*=

400 kV Hyderabad line (AP-86) (AP-85)

400 kV Gooty line (AP-88) (AP-87)

Drawal at Kurnool (AP-KL)*=

400 kV N'Sagar line (AP-59) (CK-22)

400 kV Raichur line (AP-60) (CK-21)

Drawal at M'Nagar (AP-MN)*=

400 kV Cuddapah line (AP-65) (SR-09)

400 kV Sriperambadur line (AP-66) (SR-30)

Drawal at Chittoor (AP-CH)*=

400 kV Ramagundam line (AT-02) (SR-15)

400 kV Hyderabad line (AT-01) (SR-04)

Drawal at Gajwel (AP-GL)*=

400 kV Ramagundam line (AT-17) (RM-16)

400 kV Hyderabad line (AT-18) (SR-05)

Drawal at MALKARAM (AP-ML)*=

400 kV side of ICT I (AT-03) (AT-04)

400 kV side of ICT II (AT-05) (AT-06)

400kV Boopalapally Line-I (AT-13) (AT-15

400kV Boopalapally Line-II (AT-14) (AT-16)

Drawal at Warangal (AP-WL)*=

At 220 kV/132 kV inter-State lines

1 Kakinada 132 kV Yanam line (PO-05) (PO-06)

2 Tandur 230 kV Sedam line (AP-51) (CK-53)

3 Gooty (RS) 220 kV Bellary line (AP-52) (CK-55)

4 Chitthoor(220 kV) 220 kV Tiruvalam line (AP-53) (TN-56)

5 Sulurpet 220 kV Gummidipoondi line (AP-54) (TN-57)

AP's Drawl on ISTS network (AP-91)* = (AP-GZ)+(AP-VJ)+(AP-VM)+(AP-KM)+(AP-RM)+(AP-HY)+(AP-NS)

AP's Drawl on 220kV/132KV inter-state lies (AP-92)*=(AP-51)+(AP-52)+(AP-53)+(AP-54)+(PO-05)

Total Drawl by APTRANSCO (AP-93)*=(AP-91)-(AP-92)

Gooty

#Meters connected with

reverse polarity

Mehaboobnagar

(APTRANSCO)

Nagarjunasagar

8

9

7

14Gajwel 400 kV

(APTRANSCO)

Warangal 400 kV

15Malkaram 400 kV

(APTRANSCO)

16

(AP-23)+(AP-25)+(AP-27)

-(AT-02)-(AT-01)

Nellore

(AT-03)+(AT-05)+(AT-13)+(AT-14)

+(AP-KD)+(AP-GY)+(AP-NL)+(AP-KL)+(AP-MN)+(AP-CH)+(AP-GL)+(AP-WL)

-(AP-59)-(AP-60)

-(AT-17)-(AT-18)

(AP-29)+(AP-37)

-(AP-65)-(AP-66)

13Chittoor 400 kV

(APTRANSCO)

(AP-31)+(AP-39)

Cuddapah

(AP-33)+(AP-35)

-(AP-86)-(AP-88)

12

10

11Kurnool

(APTRANSCO)



4.3(b) Drawl by KPTCL from Grid

At ISTS network

Sl.


Main

Meter

Check

Meter, if

any


400 kV side of ICT-I (CK-01) (CK-02)

400 kV side of ICT-II (CK-03) (CK-04)

Drawal at S'hally (CK-BG)*=



33kV side of Aux. Transformer (PG-05)

Drawal at Kolar (CK-KL)*=

400 kV Mahboobnagar line (CK-21) (AP-60)

400 kV Munirabad line (CK-23) (CK-24)

400 kV Gooty line I (CK-64) (AP-67)

400 kV Gooty line II (CK-65) (AP-68)

Drawal at Raichur (CK-RA)*=

400 kV side of ICT I (CK-05) (CK-06)

400 kV side of ICT II (CK-68) (CK-69)

Drawal at Munirabad (CK-MB)*



400 kV JSW line (CK-26) (CK-39)

Drawal at Guttur (CK-GU)*=



Drawal at Hiriyur (CK-HI)

400 kV Hiriyur Line-I (CK-29) (CK-32)

400 kV Hoody line-I (CK-30) (CK-31)

400 kV Hiriyur Line-II (CK-35) (CK-33)

400 kV Somanahalli s/c line (CK-36) (CK-37)

400 kV Somanahalli D/C line I (CK-48) (CK-62)

400 kV Somanahalli D/C line II (CK-49) (CK-63)

400 kV Mysore line I (CK-44)

400 kV Mysore line II (CK-45)

400 kV Gooty line (CK-38) (AP-89)



Drawal at Mysore (CK-MY)*=



Drawal at Hoody (CK-HD)*=

Somanahalli

=(CK-05)+(CK-68)

(CK-07)+(CK-19)+(CK-26)

=(CK-15)+(CK-72)

Hiriyur

Kolar

Raichur

Munirabad

Nelamangala

Guttur

Mysore

Drawal at Nelamangala(CK-NL)*= -(CK-29)-(CK-30)-(CK-35)-(CK-36)-(CK-48) -(CK-49)-(CK-44)-(CK-45)-

(CK-38)

(CK-40)+(CK-42)

2

-(CK-21)-(CK-23)-(CK-64)-(CK-65)

(CK-11)+(CK-66)-(PG-05)

Hoody

8

9

4

7

3

5

6

1

(CK-01)+(CK-03)

(CK-09)+(CK-13)



Sl.


Main

Meter

Check

Meter, if

any


400 kV side of ICT-I #(CK-17) (CK-18)

# Meter connected with reverse

polarity,care to be taken while computing

drawal.


Drawal at Narendra (CK-ND)*=

220 kV Kadra line (KG-23)

220 kV Kodasalli line (KG-24)

Drawal at Kaiga (CK-KG)*=

At 220 kV/110 kV Inter-State Lines

1 Kadakola 220 kV Kaniampetta line (CK-51) (KL-55)

2 Sedam 220 kV Tandur line (CK-53) (AP-51)

3 Yerandahalli 220 kV Hosur line (CK-54) (TN-55)

4 Bellary 220 kV Gooty line (CK-55) (AP-52)

220 kV Xeldem line (CK-58) (GO-01)

220 kV Ponda line (CK-59) (GO-02)

6 Konaje 110 kV Manjeswar line (CK-52) (KL-56)

110 kV Ambewadi line I (CK-56) (GO-03)

110 kV Ambewadi line II (CK-57) (GO-04)

KPTCL's Drawl on ISTS network (CK-91)* = (CK-BG)+(CK-KL)+(CK-RA)+(CK-MB)+(CK-GU)

+(CK-HI)+(CK-NL)+(CK-MY)+(CK-HD)+(CK-ND)+(CK-KG)

KPTCL's Drawl on 220/110kV inter-state lines (CK-92)* = (CK-51)+(CK-53)+(CK-54)+(CK-55)+(CK-58)+(CK-59)

+(CK-52)+(CK-56)+(CK-57)

Total Drawl by KPTCL (CK-93)* =(CK-91)-(CK-92)

Supa

11 Kaiga

Narendra

Ambewadi5

7

10

(CK-17)+(CK-46)

(KG-23)+(KG-24)



4.3(c) Drawl by KSEB from Grid

At ISTS network

Sl.


Main

Meter

Check

Meter, if

any


400 kV Interconnector-1 (PG) (KL-01) (KL-02)

400 kV Interconnector-2 (PG) (KL-03) (KL-04)

Drawal at Trichur (KL-TC)*=

400 kV side of ICT-I (KL-05) (KL-06)

400 kV side of ICT-II (KL-07) (KL-08)

400 kV side of ICT-III (KL-09) (KL-10)

Drawal at Trivandrum (KL-TV)*=

220KV Tirunelveli-1 (KL-11) (TN-83)

220KV Tirunelveli-2 (KL-12) (TN-84)

Drawal at Edamon =

Sl.


Main

Meter

Check

Meter, if

any


1 Moozhiyar 220 kV Theni Line (KL-51) (TN-51)

2 Idukki 230 kV Udumalpet line (KL-53) (TN-53)

3 Kaniyampetta 220 kV Kadakola line (KL-55) (CK-51)

4 Manjeswar 110 kV Konaje line (KL-56) (CK-52)

5 Parasala 110 kV Kuzhithurai line (KL-58) (TN-58)

KSEB's Drawl on ISTS network (KL-91)*= (KL-TC)+(KL-TV)-(KL-11)-(KL-12)

KSEB's Drawl on 220/110kV inter-state lines

Total Drawl by KSEB (KL-93)*=(KL-91)-(KL-92)

Trichur1

Trivandurm

3 Edamon$

(KL-92)*= +(KL-51)+(KL-53)+(KL-55)+(KL-56)+(KL-58)

(KL-01)+(KL-03)

(KL-05)+(KL-07)+(KL-09)

$ Later on will be charged at 4000kV

(KL-11)+(KL-12)

2



4.3(d) Drawl by TNEB from Grid

At ISTS network

Sl.


Main

Meter

Check

Meter, if

any


400 kV Interconnector-1 (PG) (TN-01) (TN-02)


Drawal at S'budur(TN-MD)*=

400 kV side of ICT-I (TN-35) (TN-36)

400 kV side of ICT-II (TN-37) (TN-38)

400 kV side of ICT-III (TN-39) (TN-40)

Drawal at Alamathy(TN-AL)*=



Drawal at Salem(TN-SL)*=



400 kV side of ICT-III (TN-73) #(TN-74) # Meter connected with reverse polarity

Drawal at Udumalpet(TN-UD)*=



Drawal at Trichy(TN-TY)*=



Drawal at Madurai(TN-MI)*=



Drawal at Kalavinthapattu(TN-KL)*=



Drawal at Karaikudi(TN-KR)*=


400 kV side of ICT-II #(TN-71) (TN-72)



drawal.

400kV Edamon-1 $ (TN-83) (KL-11)

400kV Edamon-2 $ (TN-84) (KL-12)

Drawal at Thirunelveli(TN-TL)*=



Drawal at Pugalur(TN-PU)*=




drawal.

400 kV side of ICT-II (TT-01) (TT-02)

Drawal at Arasur(TN-ARS)*=

7

(TN-77)+(TN-79)

(TN-09)+(TN-11)+(TN-73)

(TN-13)+(TN-15)

(TN-17)+(TN-19)

6 Madurai

4

Alamathy

(TN-35)+(TN-37)+(TN-39)

(TN-05)+(TN-07)

(TN-87)+(TT-01)

Kalavinthapattu

(TN-48)+(TN-59)

(TN-46)+(TN-71)-(TN-83)-(TN-84)

(TN-81)+(TN-75)

Udumalpet

Karaikudi

$ Later on will be charged at 4000kV

(TN-01)+(TN-03)

1 Sriperumbudur

Trichy

3 Salem

Pugalur

9 Thirunelveli

10

2

5

8

11 Arasur





Drawal at Hosur(TN-HO)*=

230 kV STCMS line-II (TN-41) (TN-61)

230 kV Villupuram line-I (TN-42) (TN-62)

230 kV Kadalangudi line (TN-43) (TN-63)

230 kV TNEB (tie-1) (TN-44) (TN-64)

230 kV TNEB (Tie-2) (TN-45) (TN-65)

Drawal at NLC TS II(TN-NL)*=

230 kV S.P.Koil-I (MA-01) (MA-11) (TN-26)

230 kV S.P.Koil-II (MA-02) (MA-12) (TN-27)

230 kV Arni (MA-03) (MA-13) (TN-28)

230 kV Acharapakkam (MA-04) (MA-14) (TN-29)

Drawal at Kalpakkam(MA-91)*=

220 kV Station Transf.-6T (NE-13) (NE-14) (NE-09)

220 kV Station Transf.-7T (NE-15) (NE-16) (NE-11)

Drawal at NLC TS I Expn(NX-97)*=

At 230 kV/110/66 kV Inter-State Lines

1 Theni230 kV Moozhiyar line # (TN-51) (KL-51)

# Meter connected with

reverse polarity

2 Udumalpet 230 kV Idukki Line (TN-53) (KL-53)

3 Hosur 230 kV Yerrandanahally Line (TN-55) (CK-54)

4 Thiruvelam 230 kV Chittoor line (TN-56) (AP-53)

5 Gummidipundi 230 kV Sulurpet line (TN-57) (AP-54)

6 Kuzhithurai 110 kV Parasala line (TN-58) (KL-58)

7 Uppatti 66 kV Koothmunda line (TN-54)

TNEB's Drawl on ISTS network (TN-91)*= (TN-MD)+(TN-AL)+(TN-SL)+(TN-UD)+(TN-TY)+(TN-MI)+(TN-KL)+(TN-KR)+(TN-TL)+

'TN(PU)+(TN-ARS)+(TN-HO)+(TN-NL)+(MA-91)-(NX-97)

TNEB's Drawl on 230/110kV inter-state lines (TN-92)*= (TN-51)+(TN-53)+(TN-55)+(TN-56)+(TN-57)+(TN-58)+(TN-54)

Total Drawl by TNEB (TN-93)* =(TN-91)-(TN-92)

(TN-31)+(TN-33)

(TN-41)+(TN-42)+(TN-43)+(TN-44)+(TN-45)

(MA-01)+(MA-02)+(MA-03)+(MA-04)

(NE-13)+(NE-15)

13 Neyveli TS-II

14 Kalpakkam

15NLC-TPS-I

Expansion

12 Hosur



4.3(e) Drawl by Puducherry Electricty Department from Grid

Sl.


Main

Meter

Check

Meter, if

any


400 kV side of ICT-I (PO-09) (PO-10)



drawal.

400 kV side of ICT-II (PO-11) (PO-12)

2 Villianur 230 kV Neyveli Line (PO-02) (PN-01)

3 Bahur 230 kV Neyveli Line (PO-04) (PN-03)

4 Yanam 132 kV Kakinada line (PO-06) (PO-05)

Total Drawl by Pondicherry (PO-93)* =(PO-09) +(PO-11) -(PO-02)-(PO-04)-(PO-06)

4.3(f) Drawl by Goa Electricty Department from Grid

Sl.


Main

Meter

Check

Meter, if

any


1 Xeldem 220 kV Ambewadi line (GO-01) (CK-58)

2 Ponda 220 kV Ambewadi line (GO-02) (CK-59)

3 Ponda 110kV Supa line I (GO-03) (CK-55)

4 Ponda 110kV Supa line II (GO-04) (CK-57)

Total Drawl by Goa = (GO-93)* =-(GO-01)-(GO-02)-(GO-03)-(GO-04)

4.3(g) Drawl by POWERGRID HVDC from Grid

Sl.


Main

Meter

Check

Meter, if

any


33kV side of Aux.Transf.-I (PG-01)

33kVside of Aux.Transf.-II (PG-03)

2 Kolar HVDC 33kV side of Aux.Transformer (PG-05)

11 kV side of Aux.Transf.-I (PG-07) (PG-08)

11 kV side of Aux.Transf.-II (PG-09) (PG-10)

11 kV side of Aux.Transf.-III (PG-11) (PG-12)

Total Drawl by PowerGrid for HVDC Aux. Consumption

(PG-93)* =(PG-01)+(PG-03)+(PG-05)+(PG-07)+(PG-09)+(PG-11)

PG-07,PG-09,PG-11 are


polarity ,care to be taken

while computing drawal.

3 Talcher HVDC

1 Gazuwaka HVDC

1 Pondicherry



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FUTURE REQUIREMENT OF SEMs IN SR-II UPTO 2012.

Region Expected by Constituent Station Name Location of Installation Category Remarks

400 kV TS-II Expn feeder-1 M

400 kV TS-II Expn feeder-1 C

400 kV Pugalur line-2 M

400 kV Pugalur line-2 C

No.of SEMs required 4

400 kV MTPS stg III line-I M

400 kV MTPS stg III line-II M


400 kV side of GT-1 S

400 kV side of SUT-1 S

400 kV side of GT-2 S

400 kV side of SUT-2 S

400 kV Tirunelveli line-1 M


400 kV Tirunelveli line-1 C







400 kV Cochin line-1 S

400 kV Cochin line-2 S


400 kV Edamon line-1 M

400 kV Edamon line-2 M

400 kV Trichur line-1 S

400 kV Trichur line-2 S

400 kV side of ICT-1 M


230 kV side of ICT-1 S



2010-11

2010-12

SR II

2010-11

SR II 2008-09

20010-11

SR II

SR II

SR II

TS-IINLC

POWERGRID Arasur

Kudankulam

POWERGRID Cochin

KSEB Edamon

NPC






400kV Trichur line I S

400kV Trichur line II S

400kV Udumalpet line I S

400kV Udumalpet line II S


400 KV interconnector -3 M

400 KV interconnector -3 S






400 kV Mysore Line-1 M

400 kV Mysore Line-2 M


400kV Kalivinthapattu line M

400kV SV Chatram line M


400kV Kalivindapattu line S

400kV Sriperumpudur line S

400kV Alamathy line I S

400kV Alamathy line II S

400kV Pugalur line S


400kV Kalivindapattu line I S

400kV Kalivindapattu line II S


SR II

SR II

SR II

SR II

SR II

SR II

POWERGRID Trichur

POWERGRIDChulliar

(Palakkad)2011-12

2010-12

2010-11

2010-12

TNEB

2010-11

2011-12 POWERGRID

TNEB

Pugalur

SV Chatram

Sholinganallur

KozhikodePOWERGRID


400kV SV Chatram line MLILO of 400 kV Sriperumbudur -

Kalivanthapattu line at SV Chatram

400kV Sholinganallur line I M

400kV Sholinganallur line II M

400kV Pugalur line M


400kV SV Chatram lineM LILO of 400 kV Sriperumbudur -

Kalivanthapattu line at SV Chatram


400kV SV Chatram line I M

400kV SV Chatram line II M

400kV NCTPS JV line I M

400kV NCTPS JV line II M


400kV Alamathy line I S

400kV Alamathy line II S

400kV Sriperumpudur line I S

400kV Sriperumpudur line II S


400kV Madurai line I S

400kV Madurai line I S


400kV Tutucorin JV line I M

400kV Tutucorin JV line II M


400kV Mysore lineI S

400kV Mysore lineII S


2011-12 POWERGRID

2011-12 TNEB

TNEB

2011-12

2011-12

POWERGRID

SR II

TNEB Tutucorin JVSR II

2011-12

2011-12

POWERGRID

SR II 2010-11

SR II

SR II

SR II

POWERGRID

Kalivanthapatt

u

Sriperumpudur

Madurai

Alamathy

Hassan

NCTPS JV






400 kV Somanahalli line-1 S

400 kV Somanahalli line-1I S

400 kV Nelamangala line-1 S

400 kV Nelamangala line-1I S






400 kV Nelamangala line-1 S

400 kV Hoody line-1 S


400 kV BTPS line-1 M

400 kV BTPS line-II M


TOTAL NO OF SEMS REQUIRED 93

SEMS REQUIRED FOR INSTALLATION AT REMOTE END OF FEEDERS FROM NLC II STG I 15

Note : 1) The above list is tentative in nature and was prepared based on Progress report for the month of March 2010

2) In all the above locations 'A' type SEMs are to be installed.

3) 15% extra SEMs may procured as spares

4) 5% extra may be required for LTA/MTOA/STOA customers.

2010-12 POWERGRID LILO off 400 kV Nelamangala-

Somanahalli D/C line at BidadiSR II

2010-12 POWERGRID Yelahanka

LILO off 400 kV Nelamangala-

Hoody

20010-11SR II

SR II

Bidadi

HiriyurPOWERGRID


FUTURE REQUIREMENT OF SEMs IN SR-I UPTO 2012.

400kV Kothagudam line I M

400kV Kothagudam line II M


400kv Khammam line I S

400kv Khammam line I S


400kV Simhadri II line I M

400kV Simhadri II line II M


400 kV Ramagundam line-1 M LILO of 400 kV Ramagundam-

Hyderabad line- 2 at Malkaram

400 kV Ramagundam line-2 M -do-

400 kV Hyderabad line-1 M -do-

400 kV Hyderabad line-2 M


400kV Chittoor line I S

400kV Chittoor line II S

400kV Nellore line I S

400kV Nellore line II S


400kV Krishnapatnam line I M

400kV Krishnapatnam line II M


400kV Krishnapatnam line I M

400kV Krishnapatnam line II M


400 kV Vijayawada line-1 M LILO of 400 kV Vijayawada -

Srisailam D/C at Narasarapet

400 kV Vijayawada line-2 M -do-


TOTAL NO OF SEMS REQUIRED FOR FUTURE PROJECTS 21

NO OF SEMS REQUIRED FOR REPLACING SML OLD MAKE SEMS 30

Note : 1) The above list is tentative in nature and was prepared based on Progress report for the month of March 2010

2) In all the above locations 'A' type SEMs are to be installed.

3) 15% extra SEMs may procured as spares

4) 5% extra may be required for LTA/MTOA/STOA customers.

AP2010-12

SR-I 2010-12 AP

POWERGRID

SR I

SR I

SR I

SR-I

SR-I

2010-12

2010-12

2010-12

SR I

SR I

2007-08

POWERGRID Gazuwaka

2010-11 Malkaram

Krishnapatnam

Nellore

AP

AP2010-12 Chittoor

Khammam

AP Narasarapet

POWERGRID

Kothagudam


Hand Book of SEMs in SR

Documents

vt secondary quantities

state owned inter

substation bus bars

remote central computer

cumulative varh transmittal

state transmission system

current day period

average rms voltage