Rotary indoor high voltage disconnector

Model:GN30-12
Gn30-12 rotary indoor high voltage disconnector is a new type of rotary knife contact disconnector. Its main structure is to fix two sets of insulators and contacts on the upper and lower planes of the three-phase common low frame, and rotate the knife contact. So as to realize the closing and opening of the switch.

Model:GN30-12

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Product Description

Gn30-12 rotary indoor high voltage disconnector is a new type of rotary knife contact disconnector. Its main structure is to fix two sets of insulators and contacts on the upper and lower planes of the three-phase common low frame, and rotate the knife contact. So as to realize the closing and opening of the switch.Gn30- 12d switch is a form with grounding knife added to gn30-12 switch, which can meet the needs of different power systems. This product has compact design, small occupation space, strong insulation capacity, and is easy to install and adjust. Its performance meets the requirements of gb1985-89 AC high voltage disconnectors and earthing switches. It is suitable for indoor power systems with rated voltage of 10kV AC 60 hertz and below. It is used for opening and closing circuits with voltage and no load. It can be used together with high-voltage switch cabinet or separately.

Product features

◆ the altitude shall not exceed 1000m.
◆ ambient air temperature: upper limit +40 ℃; Lower limit -10 ℃.
◆ relative humidity: the daily average value shall not be greater than 95%; The monthly average value shall not be greater than 90%.
◆ the seismic intensity shall not exceed 8 degrees.
◆ places without serious dust, chemical corrosive and explosive substances.
◆ places without frequent violent vibration.

Product Parameter (Specification)

Parameter project		GN30-12/400-12.5	GN30-12/630-20	GN30-12/1000-31.5	GN30-12/1250-31.5
		GN30-12D/400-12.5	GN30-12D/630-20	GN30-12D/1000-31.5	GN30-12D/1250-31.5
Rated voltage (kV)		10
Maximum voltage (kV)		11.5
Rated current (a)		400	630	1000	1250
Thermal stability current (KA)		12.5	20	31.5
Thermal stability time (s		4
Dynamic stable current (KA)		31.5	50	80
Rated absolute Marginal level	Rated impulse voltage (kV)	75
	1min power frequency withstand voltage (kV)	42