The optimal design parameters selection of permanent actuator for vacuum circuit breaker based on dynamic characteristic analysis

In order to satisfy the closing and opening velocity of vacuum circuit breaker, it is very important that calculating the dynamic characteristic of permanent magnet actuator. Basing on the dynamic analysis, the design parameters of permanent magnet actuator, such as capacitor, actuator winding, nonworking air gap and other geometry of permanent magnet actuator are optimized in this article.