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    Influence of Low Order Harmonic Phase Angles on Tripping Time of Overcurrent Relays

    Access Status
    Fulltext not available
    Authors
    Masoum, Mohammad
    Masoum, Ali
    Masoum, A.
    Date
    2008
    Type
    Conference Paper
    
    Metadata
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    Citation
    Masoum, Mohammad and Masoum, Ali and Masoum, A. 2008. Influence of Low Order Harmonic Phase Angles on Tripping Time of Overcurrent Relays, in 40th North American Power Symposium 2008, Sep 28 2008. Calgary, Alberta, Canada: University of Calgary.
    Source Title
    Proceedings of the 40th North American Power Symposium 2008
    Source Conference
    40th North American Power Symposium 2008
    Faculty
    Department of Electrical and Computer Engineering
    School of Engineering
    Faculty of Science and Engineering
    URI
    http://hdl.handle.net/20.500.11937/28388
    Collection
    • Curtin Research Publications
    Abstract

    Experimental analyses are used to investigate the impact of low order harmonics on the operation and tripping times of overcurrent relays. Two analytical approaches based on relay characteristics provided by the manufacturer and simulations using PSCAD software package are used to estimate tripping times under non-sinusoidal operating conditions. Experiments were conducted such that the order, magnitude and phase angle of harmonics could be controlled by employing a computer-based single-phase harmonic source. Computed and measured tripping times are compared and suggestions on the application of overcurrent relays in harmonically polluted environments are provided.

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