Abstract

It has been shown that assessment of the conditions and diagnostics of defects in asynchronous electric motors operating in various industrial installations can be carried out by analyzing the spectrograms of consumed current. The spectrograms were obtained using the diagnostic system of rotary machines (DSRM). A technique to determine the conditions and degree of development of defects in electric motors during their operation is considered; the technique is based on the identification of amplitudes of spectral components of the current spectrum of a working electric motor, which are typical for a specific defect, and comparison of the magnitude of amplitudes with the detection threshold of this defect. The results of diagnostics of defects and their development with time for specific electric motors, as well as the conditions of these electric motors after repairing, have been considered.

中文翻译：

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消耗电流签名分析的异步电动机状态评估与诊断

摘要

已经表明，可以通过分析消耗电流的频谱图来对在各种工业设施中运行的异步电动机的状况进行评估并进行故障诊断。频谱图是使用旋转机械的诊断系统（DSRM）获得的。考虑了一种确定电动机运行过程中缺陷状况和程度的技术；该技术基于识别工作中的电动机的当前频谱的频谱分量的幅度，该幅度对于特定缺陷而言是典型的，并且将幅度的大小与该缺陷的检测阈值进行比较。特定电动机的缺陷诊断结果及其随时间的发展，