Performance improvement of spring operating mechanism for gas insulated circuite breaker by optimizing latch mechanism

A performance of circuit breaker is dependent on the dynamic behavior of spring operating mechanism (SOM) in terms of mechanical system. The response speed of the circuit breaker is one of important part in the performance of circuit breaker and the response speed of the circuit breaker was determined by latch mechanism. The latch mechanism consists of solenoid actuator and several linkages with joints and springs. In this paper, the design variables were selected by using sensitivity analysis and design of experiment (DOE). The optimum design was executed and the response time was reduced. To validate the optimum value, the simulation results were compared the experimental results which were measured using a high speed camera. The simulation and experimental results were similar in reduced time.