A visit to 132kv S/S PGIA visit to 132kv S/S PGI

Single Line Diagram-132/33/11kv Sub-station PGI

3 incomer from 400/220KV s/s Sarojini Nagar & 1 outgoing 132kv 3 incomer from 400/220KV s/s Sarojini Nagar & 1 outgoing 132kv line to Gomti Nagar & Martin purvaline to Gomti Nagar & Martin purva

132kv incomerincomer

outgoing

132kv incoming lines through Lightning Arrestor & is 132kv incoming lines through Lightning Arrestor & is connected to the Gantry through insulated discs.connected to the Gantry through insulated discs.

Disc insulators

Lightning Arrestor

Incomer gantryLightning

Arrestors

Bus bar for all 3 incomer & 1 outgoing line

The line moves ahead passing The line moves ahead passing through polycon insulators & to the through polycon insulators & to the circuit breakers (CB) moving ahead circuit breakers (CB) moving ahead

to the main bus barto the main bus bar

From Gantry the line moves through From Gantry the line moves through Capacitive Voltage Transformer Capacitive Voltage Transformer (CVT) & Current Transformer (CVT) & Current Transformer (CT) (CT)

Capacitive Voltage Transformer(CVT)

Current Transformer(CT)

Polycon Insulator

132KV SF6 CB

The line ,through the isolators is distributed The line ,through the isolators is distributed in the s/s through Main bus.in the s/s through Main bus.

Main Bus bar

132kv Bay

132kv Bay terminating to 20MVA 132/11kv 132kv Bay terminating to 20MVA 132/11kv TransformerTransformer

IsolatorsTransfer Bus

40MVA 132/11kv transformer 40MVA 132/11kv transformer feeding PGIfeeding PGI

Tendum isolator, used for Tendum isolator, used for rectification works to rectification works to isolate the equipmentisolate the equipment

Transformer Gantry

Transformer LA

Current Transformer(CT)

Tendum Isolator

33kv Sub-station with two 33kv Sub-station with two 40MVA(132/33kv) transformers40MVA(132/33kv) transformers

40MVA 132/33kv Emco Transformer

Post insulators

Current Transformer(CT)

33kv Bus Bar33kv GAntry

33kv Disc Insulators

33kv Gantries (1 & 2)

33kv side transformer & a single 33kv Bay33kv side transformer & a single 33kv Bay

Oil Tank

Cooling Fans

A single bay

RY

BCooling Fins

Jack Bus, used for the purpose of Jack Bus, used for the purpose of isolation of a bay for rectificationisolation of a bay for rectification

Two 5MVAr Capacitor Banks(10 MVAr) for power Two 5MVAr Capacitor Banks(10 MVAr) for power factor correction & voltage stability for distributionfactor correction & voltage stability for distribution

NCT (Neutralising Current Transformer)

RVT (Resistive Voltage Transformer)

Capacitor Cells

THANKING YOUTHANKING YOU

Chanmeet Singh Syal & Swapnil Srivastava.Chanmeet Singh Syal & Swapnil Srivastava.