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ZW32M-12 Series Outdoor High Voltage Permanent-Magnet Vacuum Circuit Breaker
● Product Information
ZW32M-12 series is mainly used for breaking and closing load current, overload current and short-circuit current in power system. It is suitable for protection and control in the power distribution system of substations and industrial and mining enterprises, as well as places for frequent operation of rural power grids. This circuit breaker has the characteristics of small size, light weight, anti-condensation, maintenance-free, etc., and can adapt to harsh climatic conditions and dirty environments; This product is operated by a permanent magnet operating mechanism; Because the permanent magnet operating mechanism is provided by the permanent magnet to provide the holding force, so that the switch is kept in the opening and closing position, the number of mechanical parts is small, and the mechanical transmission chain is short, which greatly improves the reliability and mechanism life of the switch..
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1.The pole-mounted vacuum circuit breaker equipped with vacuum interrupter has stable and reliable breaking performance, and has the characteristics of no combustion and explosion hazard, safety, maintenance-free, small size, light weight and long service life
2.The circuit breaker adopts permanent magnetic actuator mechanism with simple structure, few parts and only one moving part, which greatly reduces the source of failure and greatly improves the reliability compared with nearly one hundred parts of traditional spring mechanism. At the same time, the mechanical stripping and locking device which is easy to cause failure has been canceled, so that the operation reliability of the whole system has been greatly improved.
3.The unique self-adaptation and self-test functions of the permanent magnet mechanism controller can optimize the motion characteristics of the permanent magnet mechanism, so that the mechanical characteristics of the vacuum circuit breaker can be optimized, so as to prolong the life of the permanent magnet mechanism and the vacuum interrupter.
4.Because the product adopts a permanent magnet operating mechanism, it has the unique advantages of reliable and fast action, and its inherent action time will not exceed 10ms and the action time is consistent, which is very convenient for the setting and action of circuit breaker protection parameters at all levels.
5.The permanent magnet operating mechanism of the product has four functions: electric opening and closing, manual closing with load (with national patent) and emergency opening. Equipped with three-phase protection CT, zero-sequence CT and AB phase-to-phase voltage, the input amount uploaded by the controller is monitored in real time, and the type of circuit breaker fault is judged by comparing it with the fixed value, so as to deal with it accordingly.
6.The actuator is sealed inside the switch case, which effectively prevents the mechanism from corroding due to long-term exposure to the outdoor environment.
7.The operating mechanism is novel, simple, reliable in action, small in size, and has a mechanical life of up to 10,000 times.