Fault diagnosis in rotating electrical machines by side bands frequency spectra technique

被引：3

作者：

Flores R. ^{[1
]}

Asiaín T.I. ^{[1
]}

机构：

[1] Departamento de Ingeniería Eléctrica, SEPI-ESIME-IPN, México D.F.

来源：

Informacion Tecnologica | 2011年 / 22卷 / 04期

关键词：

Faults; Induction motor; Sidebands; Spectral analysis; Synchronous generator;

D O I：

10.4067/S0718-07642011000400009

中图分类号：

学科分类号：

摘要：

In this article a methodology to diagnose faults in rotating electrical machines is presented. The method uses spectral frequency analysis of the phase currents sidebands. Online systems to verify the magnitude of these frequencies, caused not only by mechanical faults but also electrical faults, are presented. The results of a faulty set formed by a direct current motor plus a synchronous generator of 5 kVA and two squirrel-cage induction motors of 5 HP, one with slacked bearings faults and other with broken rotor bars, are presented. Also, the results of the spectra using a conventional current sensor are compared with those of a Rogowski coil, showing that the results of both sensors are suitable to detect machine faults.

引用

页码：73 / 84

页数：11

共 15 条

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