Design and research of a new type of electromagnetic vacuum circuit breaker

Abstract

The vacuum circuit breaker is the main switch of electric locomotive, controlling the on and off of the main circuit of electric locomotive. Existing vacuum circuit breaker of electric locomotives generally the air-driven, electromagnetic retention, this vacuum circuit breaker structure is simple and stable performance is high, but large mass, high air tightness requirements, the shortcomings of the noise. The design of this design according to the actual situation of electric locomotives, the design of a vacuum circuit breaker does not require compressed air drive, electronic control of mechanical manipulation mode of the circuit breaker, the new vacuum circuit breaker using electromagnet drive device to realize the vacuum circuit breaker opening and closing operation, while increasing the energy storage device for the vacuum circuit breaker closing operation to provide the necessary energy. This new type of electromagnetic vacuum circuit breaker has the characteristics of small size, simple structure, low cost and high reliability performance.