| Customization: | Available |
|---|---|
| Type: | High-voltage |
| Structure: | Three-column Disconnector |
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GW4 Type serial High Voltage Outdoor isolator /Disconnector /disconnecting switches comply with requirements in GB1985-2004 High-voltage Allemating Disconnecting Switches and Earthing Switches,IEC62271-102:2002AC Disconnecting Switches and Earthing Switches ,and IEC60694:1996 Common Clause for High voltage Switchgear and Control Devices.
Ambient Condition:
• Altitude:≤1000-3000m
•Ambient temperature:no more than 40°C and no less than -30°C(no less than -40°C in alpina areas )
•Wind speed:≤34m/s
•Earthquake intensity:≤8 degree
•Air pollution :IV
•Ice thickness:≤100mm
•the installation location shall be free from flammable ,explosive dangerous articies,chemical corrosion and flerce vibration
•The pollution grade of post insulator :o for general type and 2 for pollution resistance type.
| Type | GW4-40.5 | GW4-72.5 | GW4-126 | GW4-126G | GW4-145 | |
| Rated voltage kV | 40.5 | 72.5 | 126 | 126 | 145 | |
| Rated current A |
630 1250 2000 2500 |
630 1250 2000 2500 |
630 1250 2000 2500 |
630 1250 |
1250 2000 2500 |
|
| Short time withstand current ( rms) kA |
20 31.5 40(46) |
20 31.5 40(46) |
20 31.5 40(46) |
20 31.5 |
20 31.5 40(46) |
|
| Peak withstand current ( peak ) kA |
50 80 100(104) |
50 80 100(104) |
50 80 100(104) |
50 80 |
50 80 100(104) |
|
| Rated short-time power frequence withstand voltage ( rms ) kV | to each | 80 | 140 |
185 (230) |
185 | 275 |
| between breaks | 110 | 160 |
210 (265) |
210 | 315 | |
| Lighting impulse withstand voltage ( peak ) kV | to each | 185 | 325 |
450 (550) |
450 | 650 |
| between breaks | 215 | 375 |
520 (630) |
550 | 750 | |
| Horzontal force of terminal N |
550 (750) |
735-750 | 1000 | 1000 | 1500 | |
| Weigh of signle pole kg | 80 | 200 | 240 | 300 | 3 | |
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