Detection and analysis of rotor faults in induction motors by the measurement of the stray magnetic flux

Detection and analysis of rotor faults in induction motors by the measurement of the stray magnetic flux

This paper presents measured data and electromagnetic FEM field calculations as techniques for detecting and analyzing eccentricity in three-phase induction motors. Also it presents experimental results for detecting broken bars in induction motor rotors. A search-coil is used as magnetic field sens...

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Bibliographic Details
Main Authors: M. Rigoni, N. Sadowski, N. J. Batistela, J.P. A. Bastos, S. L. Nau, A. Kost
Format: Article
Language:English
Published: Sociedade Brasileira de Microondas e Optoeletrônica; Sociedade Brasileira de Eletromagnetismo
Series:Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Subjects:
Induction motor
Eccentricity
Finite element method
Broken bars
Magnetic field sensor
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-10742012000100006&lng=en&tlng=en
Description
Summary:This paper presents measured data and electromagnetic FEM field calculations as techniques for detecting and analyzing eccentricity in three-phase induction motors. Also it presents experimental results for detecting broken bars in induction motor rotors. A search-coil is used as magnetic field sensor to measure the stray magnetic flux outside the motor. It is a totally non-invasive method.
ISSN:2179-1074

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