ZW8-12kv High Voltage 4 phase Vacuum Circuit Breaker Interruptor

  ZW8-12kv High Voltage 4 phase Vacuum Circuit Breaker Interruptor
Summary ZW8-12 series vacuum circuit breaker for a period of 12 kv, rated voltage of the three-phase ac 50 hz high voltage outdoor switchgear equipment, mainly used for breaking off site, city network and small power system load current, overload current, short circuit current. The product overall structure for the three-phase together box type, three-phase vacuum arcing chamber placed in a metal cabinet, using SMC insulating materials and insulation and insulation to ground, reliable performance, high dielectric strength. ZW8A - 12 by ZW8-12 circuit breaker with a combination of the isolation knife, called a combination circuit breaker, can be used as the section switch. The series of products of operating mechanism for CT23 spring energy storage type operating mechanism, divided into electric and manual.
Product feature City, the ideal equipment of the rural electric reform: Can be matched with the controller to realize remote control, telemetry and remote setting, and realize the four remote functions.
Flexible operation, convenient: This product is a east electric energy storage, electric points, both hand machine, manual and combination, and be able to close or long-distance remote control operation.
Open circuit superior performance: The breaking short circuit current 20 ka for 30 times.
Operating power is small, high reliability: New design of small electric spring mechanism, part number and operation work around (about 30 w) is reduced to the lowest level.    

no.	item		unit	data
1	rated voltage		kv	12
2	rated insulation level	1 min power frequency withstand  voltage, electrode, ground/fracture)		dry	42/49
				wet	34
		Lightning shock compression  (electrode, on the ground)		75
		Lightning shock compression(fracture)		85
3	rated frequency		hz	50
4	rated current		A	630
5	rated short circuit breaking current		KA	20
6	rated short circuit making current peak		KA	50
7	rated short time withstand current		KA	20
8	rated short circuit closing current peak		KA	50
9	mechanical life		TIME	30000
10	rated short circuit breaking current breaking times		TIME	30

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