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disconnector
The series of GW4 disconnectors are of double-column horizontal rotating structures, the disconnectors completely meet with the requirements of IECC6227-102 and other international standards. The products have all passed type tests successfully conducted in the internationally famous KEMA Laboratory, Holland. Please contact us! Email:liujing@mec.com.cn
Description
Skype: liujingmec
liujing@mec.com.cn
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The series of GW4 disconnectors are of double-column horizontal rotating structures, the disconnectors completely meet with the requirements of IECC6227-102 and other international standards. The products have all passed type tests successfully conducted in the internationally famous KEMA Laboratory, Holland.
Technical Parameters for Disconnector
|
Item
|
Unit
|
GW4-40.5
|
GW4-72.5
|
GW4-126
|
GW4-145
|
GW4B-252
|
|
Rated voltage
|
kV
|
40.5
|
72.5
|
126
|
145
|
252
|
|
Rated current
|
A
|
3150
|
630/1250/2000/3150
|
2000
|
3150
|
|
Rated short time withstand
current (3s)
|
kA
|
40
|
25/31.5/40/50
|
40
|
50
|
|
Rated peak withstand current
|
kA
|
100
|
63/80/100/125
|
100
|
125
|
|
Rated short time Power frequency withstand voltage
|
To earth
|
KV
|
70
|
140
|
230
|
275
|
460
|
|
Across open contacts
|
80
|
160
|
265
|
315
|
530
|
|
Rated lighting impulse withstand voltage
|
To earth
|
KV
|
170
|
325
|
550
|
650
|
1050
|
|
Across open contacts
|
195
|
375
|
630
|
750
|
1200
|
|
Creepage
|
Mm/kV
|
25 or 31
|
|
Isolating distance after main contact open
|
mm
|
530
|
950
|
1250
|
1550
|
≥2450
|
|
Isolating distance after earthing blade open
|
mm
|
560
|
520
|
910
|
1180
|
≥1800
|
|
Bending force of porcelain insulator
|
N
|
4000
|
6000
|
|
Torsion force of porcelain insulator
|
N.m
|
2000
|
|
Rated static mechanical load of terminal (transverse/horizontal/vertical)
|
N
|
500
|
1000/750/1000
|
2000/1500/1250
|
|
Weight of single pole
|
Kg
|
100
|
275
|
325
|
375
|
950
|
|
Mechanical endurance
|
Time
|
|
≥5000
|
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