FKN-12/630-20 12kv vacuum high voltage pneumatic type load switch

FKN-12/630-20 12kv  vacuum high voltage pneumatic type load Switch 

 

TECHNICAL DATA

 

No.	Name			Unit	FKN12A	FKRN12A
1	Rated voltage			KV	12	12
2	Rated frequency			Hz	50	50
3	Rated current			A	630	125
4	Rated insulation level	power frequency withstand voltage(1min)	To ground,Interphase	KV	42	42
			breaker fracture		48	48
		lighting implus withstand voltage(peak)	To ground, Interphase		75	75
			breaker fracture		85	85
5	Rated short-time withstand current(thermal stability current)		Load switch	KA	20
			Grounding switch		20
6	Rated short-circuit duration(thermal stability time)		Load switch	S	4
			Grounding switch		2
7	Rated short circuit closing current(peak)				50
8	Rated breaking current		load breaking current	A	630
			closed loop breaking current		630
			Cable charging current		10
			breaking no-load transformer capacity	KVA	1250
9	Rated short-circuit breaking current(Current limiting fuses)			KA		31.5
10	Rated transf current			A		1200
11	Mechnical life			times	2000	2000
1	Fracture opening distance			mm	≥175
	Interphase center distance				210±2
	interphase air distance				≥
	travel				210±4
	overtravel				≥40
2	three-phase non-simultaneity of contact closing			ms	≤0
	three-phase non-simultaneity of contact opening				≤5
	Proper release of shunt release				40~65
3	Dominant loop resistance			μΩ	≤130

 

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Buy recommendation :

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2. According to the customer's requirement ,different specifications of the items can be mixed shipments and lower freight. 
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Product Categories : Vacuum Circuit Breaker