The Static and Dynamic Analyses of actuator with Branch Magnetic circuit for Electronic trip of Low-Voltage Circuit Breaker

摘要

The fast permanent magnet actuator for electronic trip is widely used in low-voltage circuit breaker. Based on 3D finite element method combining with the multi-body dynamic calculation, the paper analyzes the static and dynamic characteristics of the actuator with branch magnetic circuit, and the reliability design of actuator to be linked with branch magnetic circuit is also discussed.