●Brief Description
GW16B/17B Series of disconnectors are improved by us on the basis of Series GW16/17 disconnectors. Besides the traditional virtues of single-arm folding style, this new-type products adopt the hot-galvanizing process on surfaces of exposed ferrous metal components and double-seal rolling contact finger. By means of the above modification, GW16B/17B Series of disconnectors will hold the dominant position in the disconnector market.
● Main Features
1 Reasonable new structure, reliable performance and service;
2 Excellent mechanical properties, small operating force, long mechanical endurance;
3 Moving contact is single-arm folding style, the driving components are sealed in the conducting rod with no influence of bad weather;
4 Improve anticorrosive, waterproof, dustproof, anti-freezing capability and mechanical stability, etc., remove the defects such as contact heating and big opening impulse to make the performance more reliable.
● Technical Parameters
Specifications
|
Unit
|
Value
|
Rated voltage
|
kV
|
252
|
363
|
550
|
Rated current
|
A
|
2500/3150
|
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
|
|
|
|
|
|
|
|
|
|
|