Experimental evaluation method for capacitive current breaking performance of ultrahigh-voltage filter circuit breaker

The invention discloses an ultrahigh-voltage filter circuit breaker capacitive current breaking performance experiment evaluation method. The method comprises the following steps: firstly, determining a probability density function of filter circuit breaker breaking capacitive current arcing time; determining the number of times of breaking experiments in each experimental arcing interval, and counting the number of times of first breakdown of the breaking experiments in each experimental arcing interval to obtain the first breakdown probability and the non-breakdown probability of the ultrahigh-voltage filter circuit breaker in each experimental arcing interval; determining a first breakdown probability distribution function or a non-breakdown probability distribution function of the ultrahigh-voltage filter circuit breaker; finally, the breaking performance of the ultrahigh-voltage filter circuit breaker is evaluated, the residual life of the ultrahigh-voltage circuit breaker switching filter is determined