Simulation Analysis for Opening Performance of Medium Voltage Vacuum Circuit Breaker Based on ADAMS and Maxwell

Abstract

Abstract. The circuit breakers play a important role in control and protect the power system and the vacuum circuit breaker has been widely used in the field of medium voltage with its excellent opening performance. Virtual prototyping technology is also became more and more popular in design and optimization of the vacuum circuit breaker.In this paper, the electromagnetic simulation software Ansoft Maxwell is used to analyze the electric repulsion of the circuit breaker in the case of open the rated short circuit breaking current. The 3D model that was built by CREO is imported into ADAMS .Then constraints, contact force, and the electric repulsion force that was analysezed in Ansoft Maxwell is added into the 3D model. Therefore, we can carry on the multi-body dynamics simulation to the 3D model. Then We can get the opening performance of the vacuum circuit breaker in the condition of open circuit rated short circuit breaking current. The simulation results show that the circuit breaker can still meet the performance requirements in the condition of open circuit rated short circuit breaking current.