DETECTION OF A MISSING STATOR SLOT WEDGE IN AN ELECTRICAL MACHINE

A missing stator slot wedge in an electrical machine can be detected by analyzing a current spectrum of the machine in a high frequency area. A current spectrum is provided from a current measurement, and values of the current spectrum in the high frequency area used to determine whether a stator sl...

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Bibliographic Details
Main Authors RODRIGUEZ PEDRO, PINTO CAJETAN
Format Patent
LanguageEnglish
Korean
Published 08.07.2013
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:A missing stator slot wedge in an electrical machine can be detected by analyzing a current spectrum of the machine in a high frequency area. A current spectrum is provided from a current measurement, and values of the current spectrum in the high frequency area used to determine whether a stator slot wedge is missing or not. The conclusion can be based on values of a relative current amplitude IdB or on presence of certain harmonics in the high frequency area.
Bibliography:Application Number: KR20137011767