The electrical and mechanical design information and the electrical and thermal testing performed on the 440-208 V RMS, 20 kHz, 25 kVA prototype node transformer are summarized. The calculated efficiency of the node transformer is 99.3% based on core loss and copper loss test data, and its maximum calculated load regulation is 0.7%. The node transformer has a weight of 19.7 lb and has a power density of 0.8 lb/kW. The hot-spot temperature rise is estimated to be 33 degrees above the cold plate mounting base. This proof-of-concept transformer design is a viable candidate for the Space Station Freedom application.


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    Title :

    20 kHz, 25 kVA node power transformer


    Additional title:

    Ein Leistungstransformator für 20-kHz-25-kVA-Knoten


    Contributors:
    Hussey, S. (author)


    Publication date :

    1989


    Size :

    5 Seiten


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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