ZF11C-252(L) Gas Insulated Metal-enclosed Switchgear (hereinafter referred to as ZF11C-252 GIS) is a 252kV high-reliability GIS independently developed and manufactured by Pinggao Group. It is suitable for power systems with a rated voltage of 220kV.
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ZF11C-252(L) GIS
Negotiable
China
No. 278 Huoju Road, Torch High-Tech Industrial Development Zone, Weihai City, Shandong Province
+86 631 5627756
pinggaowh@163.com
Product Introduction
Product Parameters
|
Project Name |
Unit |
Parameter Value |
|
|
Rated voltage |
kV |
252 |
|
|
Rated current |
A |
3150/4000 |
|
|
Rated short-circuit closing current |
kA |
125/171 |
|
|
Rated peak withstand current |
kA |
550 |
|
|
Rated short-time withstand current |
kA |
50/69(3s) |
|
|
Rated peak withstand current |
kA |
100 |
|
|
1min power frequency withstand voltage effective value |
To ground |
kV |
395/460 |
|
Fracture |
460/460(+145) |
||
|
Lightning impulse withstand voltage (peak) |
To ground |
kV |
950/1050 |
|
Fracture |
1050/1050(+206) |
||
|
Rated gas working pressure |
Circuit breaker gas compartment |
MPa |
0.60 |
|
Other gas compartments |
0.40 |
||
|
Gas replenishment alarm pressure |
Circuit breaker gas compartment |
MPa |
0.52 |
|
Other gas compartments |
0.35 |
||
|
Gas minimum functional pressure |
Circuit breaker gas compartment |
MPa |
0.5 |
|
Other gas compartments |
0.33 |
||
|
Annual leakage rate |
% |
≤ 0.5 |
|
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