Based on the induction of research status of high-voltage switch

this paper summarizes the development and current status of hybrid circuit breaker technology

analyzes the interaction principle between vacuum arc and SF6 arc

studies the dynamic insulating property of hybrid circuit breaker and obtains the key interactive region between vacuum arc and SF6 arc

contrast describes the structure and control features of existing hybrid circuit breaker prototypes

clarifies the major problems of hybrid circuit breaker need to be further researched.The author concludes that the optimal control policy of contacts action should be verified

the breaking capacity gain curve of hybrid circuit breaker should be obtained when different vacuum interrupter and SF6 interrupter in series

which will provide an important theoretical basis for the industrial application of hybrid circuit breaker.