Research on Influencing Factors of Contact Bounce Characteristics of Circuit Breakers Based on Correlation Analysis

Abstract

Circuit breakers are mainly used in circuit design to protect circuit safety. The circuit breaker will automatically open when abnormal conditions such as unstable current and voltage occur in the circuit. In order to reduce the fire or personal casualty accidents caused by circuit problems, the current circuit breaker models independently developed in my country are mainly vacuum circuit breakers. This type of circuit breaker has a long service life and high circuit protection safety. The domestic traditional circuit breakers have low performance of circuit breaker protection, and the frequency of failures is high. The problem of circuit breaker bouncing will affect the use of electricity and cause waste of resources. However, from the current vacuum circuit breaker, its working performance is good. Pursuing the research on the safety performance of the circuit breaker is an important prerequisite for developing the power industry and promoting the stable development of the power industry. It is widely used in the medium voltage field and has huge market potential. However, in actual operation, there are still some problems, which seriously affect the reliability of the switch. For example, multiple re-ignitions are caused due to the large rebound amplitude of the opening. Therefore, it is necessary to analyze and discuss how to reduce the effects of bouncing and other drawbacks.