252 kV 4000 A 50 kA G.I.S

252 kV 4000 A 50 kA G.I.S

1
Rated Voltage
kVrms 252
2
Rated Current
Arms 4000
3
Rated Current
Hz 50/60
4
Rated Short-Circuit Breaking Current
kArms 50
5
Rated Peak Withstand Current
kApeak 130
6
Rated Short-Time Withstand Current(3sec)
kArms 50
7
Rated power frequency withstand voltage(1min)
kVrms 460/605
8
Rated lightning impulse withstand voltage
kVpeak 1050/1200
9
Opening Time
ms < 30
10
Closing Time
ms < 100
11
Breaking Time
ms < 50
12
CB Rated Operating Sequence
- O-0.3 s-CO-180 s-CO
13
Rated Short-Line Fault Current(L75/L90)
kArms 37.5/45
14
Rated Out-of-Phase Current
kArms 12.5
15
Rated Line-Charging Breaking Current
Arms 125
16
Rated Line-Charging Breaking Current
Arms 250
17
RatedSF6Gas Pressure (20℃)
MPa 0.6
18
Rated SF6 Gas Leakage
%/year < 0.5
19
Type of Operating Mechanism(CB)
- Spring Type

252kV GIS設備單線圖

252kV GIS設備配置圖

252kV GIS設備構造圖