Application and discussion of anti-bouncing circuit for high-voltage breaker

As the designs for various types of protective device,breaker and operating box are not standardized in power projects,the anti-bouncing circuit of circuit breaker operating mechanism and the anti-bouncing circuit of protective device operating box could not cooperate properly at the same time with the breaker in reclosing operation during site commissioning,which is generally solved by disabling the anti-bouncing circuit of operating box.The one from two principle is discussed and it is suggested to insert the normal-close contact of circuit breaker in the closing monitoring circuit while both the anti-bouncing circuits are kept,which ensures the proper cooperation.Practical application proves its reliability and correctness.