鼠笼异步电动机常见故障的分析与诊断

FAULT ANALYSIS AND DIAGNOSIS OF SQUIRREL_ CAGE INDUCTION MOTORS *

对某省鼠笼异步电动机１９９５ ～１９９７ 年的故障情况进行了统计； 结合国内外其他统计结果， 研究了鼠笼异步电动机常见故障的原因、发展过程和早期征兆； 分别介绍了各种定、转子具体故障的诊断方法； 对各种方法， 特别是基于现代信号处理技术———小波分析的故障诊断方法进行了分析， 并讨论了其优缺点．

This paper presents a statistical survey of the faults of squirrel_cage induction motors that eccurred in one of China's provinces from 1995 to 1997. With close reference to similar statistical surveys both at home and abroad, the paper studies the causes, development process and initial indications of such faults. Various diagnosis methods for the stator and rotor faults are introduced. In particular, the diagnosis method which is based on modern signal processing techno_logy—wavelet analysis is discussed. Both its pros and cons are presented.