In industry, predictive maintenance has become a strategic concept. Economic interest of online diagnosis of faults in electric machines gave rise to various researches in that field. This paper proposes a local approach to tackle the problem of breaking bars and end-rings of squirrel cage in induction machines based mainly on the signature of the local variables, such as the normal flux density. This allows a finer analysis, by use of a finite element based simulation.
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Bentounsi et al. (1998) studied this question.
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