Switch cabinet circuit breaker operating system closing coil state analysis method

The invention discloses a switch cabinet circuit breaker operating system closing coil state analysis method, and belongs to the field of monitoring. Firstly, a closing coil current waveform in the operation process of the switch cabinet circuit breaker is obtained; calculating and recording the duration of the first waveform of the closing coil current; analyzing the state of the closing coil of the circuit breaker by analyzing the waveform duration of the current first wave of the closing coil when the closing coil is just put into operation and at present; and the state of the coil is diagnosed by analyzing the duration of the current waveform of the closing coil. According to the method, the coil state can be diagnosed only by analyzing the current waveform duration of the closing coil, and the method is simple and easy to implement and has the advantages of being easy to implement on site, accurate in analysis and low in implementation cost. The method can be widely applied to the field of state monitori