Noninvasive detection of broken rotor bars in operating induction motors

A description is given of a computer-based noninvasive broken bar fault detector for squirrel-cage rotors of induction motors. The detector can be applied to existing motors without disassembly or shutdown and has the sensitivity to diagnose the presence of a single broken bar or an open end ring. I...

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Bibliographic Details
Published in:IEEE transactions on energy conversion 1988-12, Vol.3 (4), p.873-879
Main Authors: Kliman, G.B., Koegl, R.A., Stein, J., Endicott, R.D., Madden, M.W.
Format: Article
Language:English
Subjects:
A.c. Machines
Applied sciences
Bars
Conductivity
Electrical engineering. Electrical power engineering
Electrical machines
Exact sciences and technology
Fault currents
Frequency
Induction motors
Lamination
Magnetic fields
Magnetic flux
Rotors
Stators
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Summary:A description is given of a computer-based noninvasive broken bar fault detector for squirrel-cage rotors of induction motors. The detector can be applied to existing motors without disassembly or shutdown and has the sensitivity to diagnose the presence of a single broken bar or an open end ring. It is suitable for monitoring the trend of the motor signature, or it can be used as a one-time diagnostic tool.< >
ISSN:0885-8969
1558-0059
DOI:10.1109/60.9364