New protective circuits have been developed for power-factor ac motor controllers. Circuits prevent direct current and consequent motor heating that would normally result from failure of solid-state switch in controller. Single-phase power-factor controller with short detector compensates for short-circuit failure in either direction by applying full power to motor. Controller with open detector compensates for open-circuit failure in either direction by turning off power to motor.


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    Title :

    Failure Detector for Power-Factor Controller


    Contributors:
    Nola, F. J. (author)

    Published in:

    Publication date :

    1982-12-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English