345 kV 4000/6000 A 63 kA GIS (Pne.)

345 kV 4000/6000 A 63 kA GIS (Pne.)

Main technical data:

 
1
Rated voltage
kVrms
345
2
Rated maximum voltage
kVrms
362
3
Rated frequency
Hz
60
4
Rated current
Arms
4000/6000
5
Rated short-circuit breaking current
kArms
63
6
Rated short time withstand current (3s)
kArms
63
7
Rated power-frequency withstand voltage
kVrms
555
8
Rated lightning impulse withstand voltage
kVpeak
1300
9
Rated switching impulse withstand voltage
kVpeak
950
10
Rated breaking time
cycle
2
11
Rated delay trip time
second
1
12
Standard duty cycle for breaker
-
CO-15sec-CO
13
Operation duty cycle for breaker
-
O-20cycle-CO
14
Rated pressure (20℃)
kgf/cm2.G
5.5/5.0
15
SF6 leakage rate
% / year
0.5
16
Control voltage
DC(V)
125
17
Operation mechanism for breaker
-
Pneumatic

345 kV GIS (pneumatic operating type) single line diagram:

 

345 kV GIS (pneumatic operating type) layout:

345 kV GIS (pneumatic operating type) structure diagram LINE BAY:

345 kV GIS (pneumatic operating type) structure diagram TIE BAY:

345 kV GIS (pneumatic operating type) structure diagram TR BAY:

 

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