Supplier Details

 

Year Established:2013

Business Type:

Management Certifiation:

  • disconnector

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:

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Description



Email: liujing@mec.com.cn
Skype:liujingmec
MSN:lijing_0612@126.com
 
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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Company Profile

Our  Group was established in the end of the year 1997. It covers a land area of 400,000㎡and a building area of 120,000㎡ in Dalian, P.R. China.Our Group has more than 1400 employees including 296 technicians and 45 experienced senior engineers.
Mainly Independently develops and manufactures 0.22-35KV Dry type Instrument Transformer, 35-220KV Oil-insulated and Gas-insulated Instrument Transformer, 10-40.5 Vacuum Switch and ≤220KV classes of Composite Insulation Arrester. The products sales network covers all over the country and capacity occupies about 15% of the national market. Part of our products are also exported to many countries and regions in Africa, Asia, Middle East, South America, etc. Presently
We owns 580 sets advanced production equipments and 168 sets precise test instruments to build a good platform for independ innovation. Every year, dozens of new products come out and over 30 products got national patent. Our Group has acquired different honorary titles more than 50 items. We are sincerely looking forward to co-operating with domestic and overseas friends.
 

MEC

 

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