12kV Outdoor Boundary Vacuum Circuit Breaker With Good Quality
12kV overhead power distribution line by line or at the end of a T user internal is at fault, because its into line switch time limit and substation protection operation qualification switch protection with the timing is not reasonable time limit, will cause the transformer substation outlet switch trip. If a fault nature is permanent, the substation coincidence will not succeed, it is a medium voltage users in local accident will make the whole 12kV power article distribution circuit. If the T abrasive-cloth adhered or client( responsibility the boundary) installed a outdoor boundary circuit breaker, after judge identify users in fault( flow, short circuit, such as one-phase ground fault), automatic fault isolation, can ensure that the fault zone users normal power. ZW32BF-12 outdoor boundary circuit breaker in 12kV feeding on the application can avoid aerial without the time, protect power, power fault accident narrow scope, shorten the time, protect power users of the main safety operation. And has the function of fault detection, protect control and communication function, can realize the automatic resection phase-to-ground fault and automatic isolation alternate with short circuit faults. Installation points suitable for 12kV power distribution lines into the responsibility of the user in the boundary line, can be applied to meet the requirements of the joint branch line.
●Environmental temperature: no high than 40℃, no less than -40℃. ●Air relative humidity: day average no greater than 95%, on average less than 90%. ●The altitude does not exceed 2000m. ●Wind pressure not more than 700Pa(equivalent to wind speed 34m/s) ●Seismic intensity not more than eight level. ●No fire, explosion, serious filthy, chemical corrosion and violent vibration of places. ●If the customers have other special requirements, can be in order to put forward , our company can offer most satisfied.
●Equipped with vacuum arcing chamber of the column in vacuum circuit breaker(performance is stable and reliable, and has no combustion and explosion danger, safety, free of maintenance, small volume, light weight and long service life etc; ●Circuit breaker using fully closed structure, sealed performance is good, help to improve the moistureproof, prevent condensation performance;
●Products can be reliable detection limits and judge out milliamperes zero sequence current and alternate with short circuit fault current realization of automatic resection single ground fault or alternate with short circuit fault;
●Product with users pay control box, prepaid expenses in electric end, can automatically cut off load, convenient power system of charge of electricity of collection;
●Operator seal in the switch internal, can avoid effectively switch from long outdoors environment and cause institutions rust.
●Operator novel, simple , reliable operation, small volume, mechanical life can reach 10000times.
●Has the fault detection function, protection control function and communication function;