Dynamic simulation of high-voltage circuit breaker concerning electrodynamic force

It is novel to construct dynamic model of VS1 vacuum circuit breaker by multi-body software ADAMS (Automatic Dynamic Analysis of Mechanical System), which is verified by experiment. The electrodynamic force model is also constructed by classifying the electrodynamic as Lorenz force and Holm force. Based on those two models, the breaking and closing process of the circuit breaker is simulated, the effects of varied short current on the mechanical characteristic are studied. The research provides basis for optimum design and condition monitoring of circuit breakers. The simulation results are verified by experiments, which indicated mat the simulation reveals the dynamic feature of the circuit breaker to some extent.