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 incomer
incomer
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
Isolators
Transfer 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 Bar
33kv
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
R
Y
B
Cooling
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