Research on the intelligent operating techniques of high voltage circuit breaker

This paper studies a new intelligent operation technology of high voltage circuit breaker(HVCB). An operating mechanism driven by a three-phase permanent magnet synchronous motor (PMSM) for HVCB is described. Through simulation model, the mechanism's opening and closing operations characteristics are simulated and calculated, and the relationship between the optimal moving contact travel of HVCB and the PMSM torque is analyzed. The main parameters and requirements of PMSM are proposed. The research results of this paper could provide technical support for realizing the intelligence of HVCB.