Products - CHINA·LONGXI ELECTRIC CO.,LTD.

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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