【摘要】 异步电机的预测维修是近年来提出的一种科学经济的维修体制，预测维修的关键是对电机的故障进行准确有效的监测与诊断。本文介绍的电流监测法，只需一个电流互感器和频谱分析仪就可实现对转子偏心、断条、裂环、相间短路、断路等故障的在线监测。更多还原

【Abstract】 he predicting maintenance of asynchronous motors is a scientific and economic maintenance system which is put forward in recent years. The key of the prediCting maintenance is to observe and diagnose the faults of asynchronous motors exactly and effetively. This article will introduce a current observation method in Which only need a current mutual inductor and a frequency spectrograph. This method can realize an on-line observation of broken and orcracked rotor, short-circuit and breaking between phrases and ect.更多还原