A Survey of Broken Rotor Bar Fault Diagnostic Methods of Induction Motor

Bilal Asad, Toomas Vaimann, Anton Rassõlkin, Ants Kallaste, Anouar Belahcen


Electrical machines particularly induction motors are playing a key role in domestic and industrial applications. They are acting as a work horse in almost every kind of industry and are responsible to consume a big proportion of total generated electricity worldwide. The faults in induction motors are degenerative in nature and can lead to a catastrophic situation if not diagnosed earlier. The failures can cause a big financial loss in the form of unexpected downtime. Broken rotor bar is a very common and frequently occurring fault in most of industrial induction motors. To select a better, accurate and reliable fault diagnostic technique, this paper presents a comprehensive literature survey of existing motor current signature analysis (MCSA) based fault diagnostic techniques. Different well known MCSA based fault diagnostic techniques are summarized in the form of basic theories, complexity of implementation, merits and demerits.

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