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Study of broken bars in three-phase squirrel-cage induction motors at standstill

Lookup NU author(s): Dr Wenping Cao

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Abstract

This paper investigates the characteristic performance of broken bar faults in induction motors at standstill by 2D time-stepping finite-element and experiential approaches. Three identical rotors with the same stator are employed to generate one healthy-rotor, one-broken-bar and two-broken-bar fault cases in a three-phase 1.1-kW squirrel-cage induction motor. The focus is placed on how the broken bar affects air-gap flux density, stator and rotor currents, torque and magnetic force, as well as iron and rotor bar losses. Numerical results are validated by some experimental measurements obtained from a dedicated test rig.

Publication metadata

Author(s): Xie Y, Gu C, Cao W

Publication type: Article

Publication status: Published

Journal: International Transactions on Electrical Energy Systems

Year: 2013

Volume: 23

Issue: 7

Pages: 1124-1138

Print publication date: 01/10/2013

ISSN (electronic): 2050-7038

Publisher: John Wiley & Sons Ltd.

URL: http://dx.doi.org/10.1002/etep.1642

DOI: 10.1002/etep.1642

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