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以CRH3动车组用LB电磁接触器CX1015/08为研究对象,通过检测电磁接触器线圈电流曲线的变化来判断接触器的操动机构故障的新方法,采用线圈电流曲线进行波形分析来量化故障状态。通过进行相关试验验证并确认了此种方法的可行性,并提出了相应的对电磁接触器工作状态进行实时监测的测试系统的设计方案。
Taking the CR electromagnetic contactor CX1015 / 08 for EMU EMU as the research object, a new method to judge the fault of the actuator of the contactor by detecting the change of the current curve of the magnetic contactor coil is adopted. The coil current curve is used for waveform analysis to quantify the fault state . Through the related experiments, the feasibility of this method is verified and verified, and the corresponding design scheme of the test system for real-time monitoring of the working condition of the electromagnetic contactor is proposed.