12KV Outdoor high voltage vacuum circuit breaker

1.12kv outdoor high voltage vacuum circuit breaker
2.Vacuum arc technology
3.Safe, easy operation
4.Imported epoxide resin

 

Main features:

SPV-12/24 circuit breaker applies vacuum arc theory. This circuit breaker is a three-phase separated box. It can meet the usage in high altitude, high temperature and humid areas and avoid any phase to phase fault and earth fault because of small phase spacing.The shell of the circuit breaker applies stainless steel which is corrosion resistant for forever use.The insulation of overall encapsulating pole and current transformer applies imported outdoor epoxide resin, which is resistant to low temperature, ultraviolet radiation and ageing with long life span.The compact disconnecting switch which is small and light can be installed; the stainless steel and integrative disconnecting switch and lightning arrester can also be installed.

Main technical data of circuit breaking:

NO.	Item		Unit	Data
				12KV	24KV
1	Rated voltage		kV	12	24
2	Rated frequency		Hz	50	50
3	Rated current		A	630/1250	630/1250
4	Rated short circuit breaking current		kA	20 /25	20/25
5	Rated impulse withstand current		kA	50/63	50/63
6	Rated short-duration withstand current/duration		kA/s	20 /4, 25/4	20 /4, 25/4
7	Rated short circuit making current (peak)		kA	50/63	50/63
8	Rated operating order		O-0.3s-CO-180s-O
9	Mechanical lifetime		times	10,000	10,000
10	Rated short circuit breaking current breaking times		times	50	20
11	1 min Rated short-duration power-frequency withstand voltage	(Wet) Phase-phase, phase earth/ Across isolating distance	kV	34/36	50/64
		(Dry) Phase-phase, phase earth/ Across isolating distance	kV	42/49	65/79
12	Rated lighting impulse withstand voltage (Peak) Phase-phase, phase earth/ Across isolating distance		kV	75/85	125/145
13	1 min rated short-duration power-frequency withstand voltage for auxiliary circuit		V	2000	2000