The Study For The On-line Monitoring Of Vacuum Circuit Breaker

The vacuum circuit breaker is one of the most important electric equipments in middle and low voltage domain of power distribution network,the normal or abnormal operation of which is of a direct impact on the overall system's stability and reliability.Therefore,it is great significant to study on-line monitoring of vacuum circuit breaker,and detect vacuum circuit breaker is running risk or not in time,so that we can take precautions before it is too late.This paper analyzes and summarizes the current algorithms and methods of on-line monitoring of vacuum circuit breaker,which involve the monitoring of contacts' electrical wear,degree of vacuum,mechanical performance and insulation performance and so on.And previous studies carried out on the basis of the improvement and innovation;At the same time, the paper analyzes a variety of possible interferences during the process of collecting the signals,and proposes the data-processing method to ensure that the collected signals' distortion is in the allowed range.