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
GW7 Series disconnector are 3-pole outdoor HV a.c electric devices, including 40.5kV, 72.5kV, 126kV and 145 kV disconnectors, which own 3-pole double-horizontal-break construction, consist of installation base, supporting insulator, rotating insulator, moving contact, fixed contact and earthing switch, etc.
Main Features
1 Reasonable structure, excellent performance and reliable service;
2 Excellent mechanical properties, small operating force, high reliability, long mechanical endurance;
3 Brilliant anticorrosive capability.
4 Small circuit resistance and good waterproof performance.
Technical Parameters
Specifications
|
Unit
|
Value
|
|||||
Rated voltage
|
kV
|
40.5
|
72.5
|
126
|
145
|
||
Rated current
|
A
|
630/1250/2000
|
630/1250/2000
|
1600
|
1600/2000
|
||
Rated frequency
|
Hz
|
50/60
|
|||||
Rated short-time withstand current (r.m.s)
|
kA
|
20/25/ 31.5
|
25/31.5/40
|
31.5
|
31.5/40
|
||
Rated peak withstand current
|
kA
|
50/63/80
|
63/80/100
|
80
|
80/100
|
||
1min power frequency withstand voltage (r.m.s)
|
To earth/Between phases
|
kV
|
70
|
140
|
230
|
275
|
|
Across isolating distance
|
kV
|
80
|
160
|
265
|
315
|
||
Lightning impulse withstand voltage (peak)
|
To earth/Between phases
|
kV
|
170
|
325
|
550
|
650
|
|
Across isolating distance
|
kV
|
195
|
375
|
630
|
750
|