【摘要】 介绍了新型的永磁机构真空断路器、永磁式交流接触器比传统的真空断路器、交流接触器具有的高节能、长寿命、无温升、免维护、无噪音等突出的特点。更多还原

【Abstract】 Compared conventional vacuum circuit-breakers and AC contactor,new permanent magnetic mechanism vacuum circuit-breakers and permanent magnetic AC contactors have the following conspicuous features,i.e.,high energy saving,long life-cycle,non-temperature rising,maintenance-free,non-noise.更多还原