Comparative experimental investigation of broken bar fault detectability in induction motors

K.N. Gyftakis, J.A. Antonino-Daviu, R. Garcia-Hernandez, M. McCulloch, D.A. Howey, A.J.M. Cardoso

    Research output: Contribution to journalArticlepeer-review

    62 Citations (Scopus)
    127 Downloads (Pure)


    It has been shown in the past that the zero-sequence current spectrum can be reliably used to detect broken bar faults in induction motors. Previous work was carried out with extensive FEM analysis. Although it allows detailed study of spatial and time-dependent electromagnetic characteristics of induction motors, FEM is a heavily time-consuming tool and this limits full study. So, in this work, extensive experimental testing has been performed to validate the zero sequence current spectrum for detecting rotor asymmetries. Three identical induction motors have been used: one healthy, one with a broken rotor bar, and one with two broken rotor bars. The motors were tested under different voltage supply levels and with different mechanical loads. The zero-sequence current spectrum was calculated after measuring the three phase currents. It is for the first time experimentally shown that this approach offers greater diagnostic potential than traditional MCSA.
    Original languageEnglish
    Pages (from-to)1452 - 1459
    Number of pages8
    JournalIEEE Transactions on Industry Applications
    Issue number2
    Early online date4 Dec 2015
    Publication statusPublished - Mar 2016

    Bibliographical note

    This article has been accepted for publication in IEEE Transactions on Industry Applications. It has also been published as conference proceedings in Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 2015 IEEE 10th International Symposium on, 461-467, DOI: 10.1109/DEMPED.2015.7303730
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    EPSRC funded FUTURE Vehicles project


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