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.
Technical Data for GW4 High Voltage AC Disconnector Switch
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 4000 | 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 Frequency withstand Voltage(rms) kV | to each | 85 | 140 | 185(230) | 185 | 275 |
between breaks | 110 | 160 | 210(265) | 210 | 315 | |
Lightning Impulse withstand Voltage(peak) kV | to each | 185 | 325 | 450(550) | 450 | 650 |
between breaks | 215 | 375 | 520(630) | 550 | 750 | |
Horizontal Force of Terminal N | 550(750) | 735-750 | 1000 | 1000 | 1500 | |
Weight of Single Pole kg | 80 | 200 | 240 |