Outdoor High Voltage Vacuum Circuit Breaker (Watchdog switch) ZW32-12FG/630

Model: ZW32-12F

Description:

The circuit breaker is mainly used for breaking and closing the load current.
Accept OEM&ODM:YES
Certificate: CE,Test reports
Production time: 7~ 12 working days
Warranty period: 12 Months
Delivery time: 15 days
Payment term: 50% deposit before production+50% balance before shipment(by T/T,D/P,Paypal)

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General
Technical Parameter

ZW32-12 Outdoor high voltage vacuum circuit breaker (watchdog switch) is an outdoor high-voltage power distribution switchgear device with rated voltage of 12KV and three- -phase AC of 50 Hz. The circuit breaker is mainly used for breaking and closing the load current. The circuit breaker is mainly used for breaking and closing the load current and overload current in the power system. Short-circuit, quick-break, grounding protection, optional reclosing times, local remote control and remote communication functions, suitable for protection and control in substation and industrial and mining enterprises' distribution systems.When the internal fault of the T-type wiring of the 12KV line occurs, or although it occurs inside the user's incoming line switch, but the protection action time limit and the substation outlet switch protection are not proper, the substation outlet switch protection will be opened. If the fault is permanent and the substation coincides unsuccessfull, an accident in the medium voltage user community will power down the entire distribution trunk. Such common incidents in the power grid will cause significant losses to society. ZW32-12 outdoor high voltage vacuum circuit breaker (watchdog switch) (hereinafter calld circuit breaker) is installed in the responsibility boundary of the overhead line, that is the front section of the user incoming line. The single-phase ground fault and the phase- -to- phase short-circuit fault in the user will be automatically cut off to avoid the fault in the user boundary and the power transmission trunk and ensure the safety of power users of faulty users and improve the relibility of power consumption.
Model Meaning

Working Condition
O Ambient air temperature: Max. +40C,Min.- 40°. O Altitude:≤2000m. O Wind speed: Not more than 34m/s (Equivalent to 700 Pa on a cylindrical surfacel. O Pollution level: IV. O No frequent violent vibration, the seismic intensity does not exceed 8 degrees. O The place should be no fire, explosion hazard, chemical corrosion.
Drawing

Environmental

No.	ltem	Unit	Data
1	Rated voltage	KV	12
2	Rated frequency	Hz	50
3	Rated current	A	630
4	Rated short circuit breaking current	KA	20
5	Rated peak withstand current	KA	50
6	Rated short-circuit withstand current	KA	20
7	Rated short circuit closing current(peak)	KA	50
8	Mechanical life	Times	10000
9	Rated short-circuit breaking current breaking times	Times	30
10	Power frequency withstand voltage (1 min):(wet)(dry)phase to phase,to earth/Between open contacts	KV	42/48
11	Lightning impulse withstand voltage (peak)phase to phase、to earth/ Between open contacts	KV	75/85
12	Secondary circuit 1min power frequency withstand voltage	KV	2

Outdoor High Voltage Vacuum Circuit Breaker (Watchdog switch) ZW32-12FG/630

Model Meaning

Working Condition

Drawing

Environmental

Yufeng Electric Co.,LTD

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