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Please use this identifier to cite or link to this item: http://dspace.lib.cranfield.ac.uk/handle/1826/10395

Document Type: Article
Title: Current based Normalized Triple Covariance as a bearings diagnostic feature in induction motor
Authors: Swedrowski, Leon
Ciszewski, Tomasz
Gelman, Leonid
Issue Date: 1-Jul-2016
Citation: Swedrowski, L., Ciszewski, T., Gelman, L. (2016) Current based Normalized Triple Covariance as a bearings diagnostic feature in induction motor, 19th World Conference on Non-Destructive Testing, Munich, German, 13-17 June
Abstract: Diagnosis of induction motors, conducted remotely by measuring and analyzing the supply current is attractive with the lack of access to the engine. So far there is no solution, based on analysis of current, the credibility of which allow use in industry. Statistics of IM bearing failures of induction motors indicate, that they constitute more than 40% of IM damage, therefore bearing diagnosis is so important. The article provides an overview of selected methods of diagnosis of induction motor bearings, based on measurement of the supply current. The problem here is the high disturbance components level of the motor current in relation to diagnostic components. The paper presents the new approach to signal analysis solutions, based on statistical methods, which have been adapted to be used by this diagnostic system. First experimental results with use of this method are also presented, they confirm the advantages of this method.
URI: http://www.ndt.net/search/docs.php3?showForm=off&id=19787
http://dspace.lib.cranfield.ac.uk/handle/1826/10395
Appears in Collections:Staff publications (SATM)

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