Designing a Permanent-Magnetic Actuator for Vacuum Circuit Breakers Using the Taguchi Method and Dynamic Characteristic Analysis.

Permanent-magnetic actuators (PMAs) are usually used for vacuum circuit breakers (VCBs) due to their fast linear motion and large holding force. As the holding force becomes larger, so does the current capacity of the circuit breaker. Producing a large holding force with the same PMA size is therefore important in PMA design. This paper presents a design method of a PMA for VCBs. To attain the des...