Control device for vacuum circuit breaker

A vacuum breaker control device used in railway locomotives vacuum circuit breaker low-voltage control. Through the vacuum circuit breaker control unit to improve the design to solve the inherent electric locomotives will replace the air circuit breaker vacuum circuit breaker brings technical obstacles. Vacuum circuit breaker control means comprises a self-reset switch opening, self closing double switch, holding coil, delay relay, from multiple intermediate relay and the normally closed solenoid valve, further comprising a lock normally open, closed auxiliary chains, normally open self-locking , and the normally closed auxiliary chain feeding point connected to the main power supply by a circuit breaker from multiple instant energized into a certain delay DC, held in a vacuum circuit breaker closing state. Stable performance of the present invention, safe and reliable, to the inherent electric locomotive air main circuit breaker upgrading provides a reliable technical basis to facilitate the upgrading work inherent in electric locomotive circuit breaker.