Quick Details
Description
Skype: liujingmec
liujing@mec.com.cn
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
|
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
Liaoning MEC Group Co., Ltd. is located in China’s famous coastal Dalian city. The company is a comprehensive group, the business scope includes international project contracting, international trade and domestic trade, environmental engineering, e-commerce, real estate and property management, warehousing and logistics , and investment.
The group company was founded in 1994. Up to now, the average annual turnover is around 2.2 billion yuans, of which, the volume of import and export amounts for more than USD 250 millions. The company keeps business relations with several thousand firms and enterprises home and abroad.
All along with the development during the past twenty years, we never forget our responsibilities to the society. The company is persistent in providing supports to the public welfares, its year in year out public donation activities have won broadly recognitions from the social communities as well as governmental authorities.
We adhere, with the company’s good HR resources and scientific management models, the ideas of advance decision making, moderate operation, prudent management, sustainable development, and abide by the core values of being realistic, to create and to share. We do our best to provide our customers with added service.
