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FEM based Assessment of Winding Inter-Tum Fault Indicators in Line Connected Induction Motors

Andriollo, M. and Kumar, R. R. and Tortella, A. and Zavagnin, Riccardo (2020) FEM based Assessment of Winding Inter-Tum Fault Indicators in Line Connected Induction Motors. [Conference Proceedings]

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    Abstract

    The paper aims at the definition of proper indicators for the effective detection of stator inter-turn faults in line connected induction motors. The procedure uses a finite element model related to a standard medium rated motor, tuned taking into account both magnetic saturation and the actual winding scheme. After the experimental check with reference to different load conditions, multiple fault indicators are evaluated by elaborating the motor current components. The same model predicts the effects of asymmetric voltage supply on the current harmonics to prevent misleading fault detection. Moreover, a relation between fault severity and the experimental setup to reproduce similar current asymmetries as in the actual fault condition has been examined. On this basis, some measurements have been carried out, enabling to have a broad check on the fault indicator effectiveness.

    Item Type: Conference Proceedings
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    T Technology > TK Electrical engineering. Electronics Nuclear engineering
    Divisions: School of Information Technology, Engineering, Mathematics and Physics (STEMP)
    Depositing User: Fulori Nainoca - Waqairagata
    Date Deposited: 27 Jan 2021 13:39
    Last Modified: 27 Jan 2021 13:39
    URI: http://repository.usp.ac.fj/id/eprint/12582
    UNSPECIFIED

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