Copyright ® Henan pinggao Electric Co.,Ltd 豫ICP备05010380号
Service
Company name: henan pinggao electric co. LTD
Address: Henan province of pingdingshan city
south ring road 22
Mail editor: 467000
E - mail : pinggao@pinggao.esgcc.com.cn
400-6700-312
If you need to consult other business, you can call the hotline directly.
General department: +86-375-3804029
Securities department: +86-375-3804064
Sales: +86-375-3803888
Customer service center: 400-6700-312
PRODUCT
PRODUCTS
Brief Description
ZF27-800 GIS, developed independently by Pinggao for controling, measuring, protecting and transforming the electric transmission line, consists of circuit breaker, current transformer, disconnector, earthing switch, main busbar, bushing and surge arrester, etc. The interrupter of circuit breaker is designed as double-break structure, and the hydraulic operating mechanism avoids the oil leak and slow-opening at zero pressure.
With rated current of 5000A and rated short-circuit breaking current of 50kA, this kind of GIS have been adopted in Substation GuanTing of 750kV power transmission project in Northwest China.
Main Features
1 All the hydraulic pipelines are set inside to avoid the leakage, which is domestic initiate.
2 High current carrying performance with the rated current of 5000A.
3 Excellent insulating level has achieved the high standard of DL/T593-2006.
4 High mechanical endurance and reliability.
Technical Parameters
|
Specifications
|
Unit
|
Value
|
|
|
Rated voltage
|
kV
|
800
|
|
|
Rated current
|
A
|
5000
|
|
|
Rated frequency
|
Hz
|
50/60
|
|
|
Rated short-time withstand current (r.m.s)
|
kA
|
50
|
|
|
Rated peak withstand current
|
kA
|
125
|
|
|
1min rated power frequency withstand voltage (r.m.s)
|
To earth & between pole
|
kV
|
960
|
|
Across isolating distance
|
kV
|
1270
|
|
|
Rated lightning impulse withstand voltage (peak)
|
To earth & between pole
|
kV
|
2100
|
|
Across isolating distance
|
kV
|
2100+(460)
|
|
|
Rated SF6 gas pressure（20℃）
|
CB compartment
|
MPa
|
0.6
|
|
Others
|
MPa
|
0.5
|
|
|
Rated SF6 annual leakage
|
%
|
≤0.5
|
|