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Technical report on ZW20 permanent magnet mechanism
Time：2019-10-16 12:17:35 Hits：2
The dynamic characteristics of permanent magnet mechanism are determined by the comprehensive transition process of electromagnetic and mechanical. In order to effectively extinguish arc, the speed of moving contact should be accelerated. However, if the speed of moving contact is too high, the collision energy will be increased, which is not conducive to the improvement of electrical and mechanical life. Therefore, it is of great significance to accurately calculate and analyze the dynamic characteristics of the permanent magnet mechanism and make the reasonable coordination between the electromagnetic force and the kinetic reaction force during the operation of the circuit breaker.
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