ZN63(VS1)-12 medium voltage breaker medium voltage contactor vacuum contactors, China ZN63(VS1)-12 medium voltage breaker medium voltage contactor vacuum contactors Supplier,Factory

ZN63(VS1)-12 medium voltage breaker medium voltage contactor vacuum contactors

Zhejiang Shanghu Electrical Co., Ltd. [China]

1. High precision mechanical structure 2. High conductivity copper

Description

ZN63(VS1)-12 series indoor vacuum circuit breaker is a three-phase AC 50 Hz, rated voltage of 12kV indoor switchgear, control and protection for industrial and mining enterprises, power plants and substations, electrical facilities,and for frequent operation place. Adopting VET operating mechanism and circuit breaker integrated, design can be used as a fixed installation unit can also be equipped with special advance mechanism, the composition of handcart unit used. Some of the main circuit can use the whole solid seal post, in order to achieve smaller circuit breakers, high reliability,maintenance-free, can be equipped with KYN28A-12(GZS) and other handcart switch cabinet in the home can also be used with fixed XGN switchgear.

Technical data

NO	Item		Units	Parameters
1	Rated voltage		kV	12
2	Rated insulation level	Rated Lightning Impulse voltage tolerance	kV	75
		1 min Frequency voltage		42
3	Rated short-circuit breaking current		kA	20/25	31.5	40
4	Rated current		A	630 1250	630 1250 160 2000 2500 3150	1250 1600 2000 2500 3150 4000
5	Rated thermal stability of current(RMS)		kA	20/25	31.5	40
6	Dynamic Stability rated current(peak)			50/63	80	100
7	Rated short-circuit closing current (peak)			50/63	80	100
8	Rated shortcircuit breaking current breaking number		Times	50
9	Frequency tolerance of the secondary circuit voltage(1 min)		V	2000
10	Rated operating sequence			0-0.3s-CO-180s-CO 0-180s-CO080sCO
12	Rated a single 1 back-to-back electric current breaking device group		A	630/400 800/400(40kA)
13	Mechanical life		Times	10000