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GW4-12/40.5D(W) Outdoor HV Disconnect Switch
 
GW4-12/40.5D(W) Outdoor HV Disconnect Switch

Summary
GW4-12/40.5 outdoor high voltage disconnect switch is used to open and close high voltage circuit in rated voltage 12/40.5kV, AC 50/60Hz system, the anti-pollution type is especial suitable for serious pollution area.

Ambient conditions
1. Altitude:≤3000m;
2. Ambient temperature:-25~+40℃ ;
3. Wind speed:≤35m/s;
4. Earthquake intensity:≤8 grade;
5. Ice thickness:≤10mm;
6. Anti-pollution type is special suitable for serious pollution area;
7.Applicable occasions should free from inflammable, explosives and severe vibration.

Model


Technical specification
Item Unit Data Note
Rated voltage kV 12/40.5
Rated current A 630 1250
Rated peak withstand current kA 50 80
4s short-time withstand current 20 31.5
Rated static pull on connection terminal N 735
Rated power frequency Hz 50/60
1min power frequency withstand voltage kV Phase to phase, phase to earth: 185/275 Suitable for three
pole linkage
across open contacts: 210/315
Lightning impulse withstand voltage(peak) kV Phase to phase, phase to earth: 450/650
across open contacts: 520/750
Suitable for three
pole linkage
Weight of switchbody kg ≈240
Operating mechanism CS14 manual
Earth method Without earth, single earth, double earth
Post insulate creepage distance mm Normal type: 1870 anti-pollution: 3050
With earth switch Short-time withstand current kA 12.5(2s) 20(2s)
Peakwithstand current 31.5 50

Disconnect switch is contain of frame, post insulator, conductive part, with earth and operating mechanism etc, earth blade is mounted with rotating shaft, static contactor is mounted on the bar, there is a mechanism linkage to ensure operating ordinally, one set Cs14 handle operating mechanical for no earth switch, two sets for singte earth switch, three sets for double earth switch.

Outline and installation dimension

 
 
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6  Indoor AC High Voltage Disconnect Switch Series
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