永磁机构真空断路器应用综述

The Application of Permanent Magnet Driving Mechanism in Vacuum Circuit Breaker

通过阐述永磁机构的结构、工作原理及与其它机构(弹簧操动机构和传统电磁操动机构)的性能比较,突出永磁机构的特点和技术先进性。并针对用户最为关心的三方面问题(即永磁体的可靠性、储能电容的寿命和电子控制装置的可靠性)展开讨论,探讨了永磁机构在真空断路器上的应用前景。

Through the describing the structure and working principle of permanent magnet driving mechanism and comparing it with the other mechanisms （spring driving mechanism, traditional electro-magnetic driving mechanism）, the characteristics and advantages of this mechanism are put forward. Discussion on three points that users concerned very much, i.e. the reliability of permanent magnetism itself, the reliability of electronic controlling device and the working life of energy storage capacitor is made here. The further application of permanent magnet driving mechanism in vacuum circuit breaker is aolgroached.