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
PRODUCTS
Brief Description
GW27-252/363/550 HV disconnectors are developed by Pinggao based on the same kind of domestic and foreign products, with rated voltage from 110 kV to 550 kV and rated current from 2000 A to 5000 A. This series of products are three-column horizontal-rotation style, with the world-class performance and anticorrosive capacity. In main blade system, the movement of conducting tube is a kind of composite action that horizontal move combines with axial rotation, which decrease the operating moment of force for the opening and closing. The operation of earthing switch is stable and reliable with simple structure.
Main Features
1 Integral structure of earthing blade is simple with reliable performance.
2 The base of porcelain insulator is welded and hot-galvanized with excellent anti-corrosive capacity. And the spring of earthing blade is not only insulated, but enclosed completely to enhance anti-corrosive performance.
3 Mechanical interlocking structure is simple and reliable.
Technical Parameters
Specifications
|
Unit
|
Value
|
||||
Rated voltage
|
kV
|
252
|
363
|
550
|
||
Rated current
|
A
|
2000/3150/4000/5000
|
3150/4000/5000
|
4000/5000
|
||
Rated frequency
|
Hz
|
50/60
|
||||
Rated short-time withstand current (r.m.s)
|
kA
|
50
|
63
|
63
|
||
Rated peak withstand current
|
kA
|
125
|
160
|
160
|
||
1min power frequency withstand voltage (r.m.s)
|
To earth/Between phases
|
kV
|
395
|
510
|
680
|
|
Across isolating distance
|
kV
|
460
|
580
|
800
|
||
Lightning impulse withstand voltage (peak)
|
To earth/Between phases
|
kV
|
950
|
1175
|
1550
|
|
Across isolating distance
|
kV
|
1050
|
1175 +(205)
|
1550 +(315)
|