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
Description
Gas Insulated Switchgear (GIS) is 3-phase AC high voltage switchgear which is used for the control, measurement, protection and switching of transmission lines. Since 1984, more than 5000 bays have been in service, some exported to Thailand, Equatorial Guinea and other countries.
ZF5T -72.5/126/145 GIS contains major substation equipments, such as circuit breaker, disconnector, earthing switch, voltage transformer, current transformer and surge arrester. All components are three-phase in one closure.
Main Features
Main Features
1. The mechanism is oil/gas free, simple construction, easy maintenance and reliable operation.
2. The enclosure is made of aluminum alloy to ensure light weight, low temperature-rise and strong anti-corrosion..
3. Double sealing systems are adopted to guarantee high reliability in gas tightness and the annual gas leakage rate is leaa than 0.5%.
4. Excellent insulating, conducting and current carrying performances.
Technical Parameters
|
Specifications
|
Unit
|
Value
|
|||||
|
Rated voltage
|
kV
|
72.5
|
126
|
145
|
|||
|
Rated current
|
A
|
2000/3150
|
|||||
|
Rated frequency
|
Hz
|
50/60
|
|||||
|
Rated short-time withstand current (r.m.s)
|
kA
|
40
|
|||||
|
Rated peak withstand current
|
kA
|
100/104
|
|||||
|
1min rated power frequency withstand voltage (r.m.s)
|
To earth & between pole
|
kV
|
140
|
230
|
275
|
||
|
Across isolating distance
|
kV
|
160
|
265
|
315
|
|||
|
Rated lightning impulse withstand voltage (peak)
|
To earth & between pole
|
kV
|
325
|
550
|
650
|
||
|
Across isolating distance
|
kV
|
375
|
630
|
750
|
|||
|
Rated SF6 gas pressure（20℃）
|
CB compartment
|
MPa
|
0.5
|
||||
|
Others
|
MPa
|
0.4
|
|||||
|
Rated SF6 annual leakage
|
%
|
≤0.5
|
|||||
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