Research on the Difference Mechanism of High Voltage Circuit Breaker’s Opening/Closing Coil Current

High voltage circuit breakers are important protection and control equipment for the power grid. The defects faults of breaker seriously affect safety stability system. As key component operating mechanism breaker, opening/closing coils contain a large amount information about status mechanism. In order to investigate cause difference in current waveforms, this paper analyzes factors affecting coil based on actual high distinguishes characteristics caused by environmental Structural difference. At same time, changes under four different types analyzed. These results lay foundation evaluation current.