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摘 要
高压断路器对电力系统的可靠稳定运行至关重要。对高压断路器实施状态监测与故障诊断，可以有效的减少过早或不必要的停电试验和检修，减少维护工作量，降低维修费用，提高检修的针对性，可显著提高其运行的可靠性和经济性。
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ABSTRACT
High-voltage circuit breaker on the power system reliability and stable operation is of essential, The implementation of High Voltage Circuit Breaker Condition Monitoring and Fault Diagnosis, can effectively reduce the likelihood of premature or unnecessary power tests and maintenance, and reduce the maintenance workload, lower maintenance costs and improve maintenance of the targeted, thus significantly improve the reliability of their operation and economy.
First of all, the paper introduced the types，structures，characteristics, preventive test methods and on-line condition monitoring and fault diagnosis technology of high-voltage circuit breaker; Secondly, according to the Working Group 13.06 of the large power grids in accordance with international organizations, and China Electric Power Research Institute which have the High Voltage Circuit Breaker Fault statistic and the analysis of its generating causes, the paper determined the content of online condition monitoring; Analyzed the opening and closing coil current waveforms of circuit breaker switch, mechanical vibration signal, the fault current signal, insulation rod DC leakage current, arc-quenching chamber and the temperature rise control inside the box. And the corresponding relationship between the state monitoring signal and the fault of
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