Presentation On A 132KV GSS NANGAL-SHERPUR
Presentation On A 132KV GSS NANGAL-SHERPUR
Presentation On A 132KV GSS NANGAL-SHERPUR
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Lighting Arresters
*Lightning arresters is a protective device which provides protection against high voltage
from lighting.
A lightning arrester has two terminals viz a high voltage terminal and a ground terminal.
It is used only for overhead line.
* ZnO type L.A.is mostly used.
WAVE TRAP
BUS BARS
Definition :A bus bar is a conducting bar that carries heavy currents to supply sever
al electric circuits.
When a number of generators or feeders operating at the same voltage level to be dir
ectly connected electrically, bus bars are used as the common electrical component.
Bus bars are copper rods or thin walled tubes and operate at constant voltage.
TYPES OF BUS BARS :
> Main bus bar
> Auxiliary bus bar
One bus bar is main Bus bar & another is spare or Auxiliary Bus bar.
When any apparatus become faulty which is directly connected
to main bus bar then we use Auxiliary Bus bar to keep supply
continue.
TRANSFORMER
Potential transformer
C.V.T.
CVTS are special kind of PTs using capacitors to step-down th
e voltage. A Capacitor voltage transformer(CVT) or Capacitan
ce coupled voltage transformer (CCVT) is a transformer used i
n power system to step-down extra high voltage signals and p
rovide a low voltage signal for measurement or to operate a
protective relay.
TRANSFORMER COOLING
* ONAN
Oil Natural Air Natural
*ONAF
Oil Natural Air Forced
ISOLATORS
* Isolators are designed to open a ckt under no load. Its mai
n purpose is to isolate portion of ckt from the other & is not i
ntended to be opened while current is flowing in the line.
*Isolators can be opened either manually or automatically o
nly after current has been interrupted by some other control
device.
*Isolators are of two types :
-Off load isolator
-On load isolator
CIRCUIT BREAKERS
A circuit breaker is a peace of equipment which can :-
>break a ckt automatically under fault conditions.
>make a ckt either manually or by remote control under fault conditions.
PRINCIPLE :-A ckt breaker essentially consists of fixed and moving contacts, called elec
trodes. Under normal operating conditions, these contacts remain closed and will not
open automatically until & unless the system becomes faulty. When a fault occurs on
any part of the system, the trip coil of the breaker gets energised & moving contacts a
re pulled apart by some mechanism. Thus opening the circuit.
Batteries chargers
Feeders
* Incoming feeder:132 KV feeder from shri mahaveer ji
*Outgoing feeders : *132 KV feeder to Gudachandra ji
* seven 33KV outgoing feeders
(a). 33KV to Kamalpura
(b). 33KV to Nangal-Pahari
(c). 33KV to jagdeespura
(d). 33KV Singhaniya
Three proposed feeders
Manmohanmeena7861@gmail.com