ZF11C-252(L) GIS
Negotiable
China
No. 278 Huoju Road, Torch High-Tech Industrial Development Zone, Weihai City, Shandong Province
+86 631 5627756
Online Contact
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Product Introduction

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.

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