Study concerns a frequency changer to convert 3200-cps power from the SNAP-50/SPUR generator to 400-cps power for induction pump motors. The cycloconverter method of frequency changing is best suited for frequency changers using silicon controlled rectifiers (SCR) with induction motor loads. The cycloconverter can be located some 20 feet away from the a-c generator with little degradation in system performance. The transmission line is quite heavy, however, to keep power losses low. The reliability of the frequency changer is low unless redundant SCR's and control circuits are used. The choice of three-phase or two-phase motors and frequency changer must be based on a thorough analysis of the SNAP-50/SPUR system and its possible modes of failures. The nuclear radiation tolerance of the frequency changer has been established based on available information. It is recommended that radiation tests on components and circuits be performed before finalizing the limits of radiation tolerance.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Snap-50/Spur Frequency Changer. Preliminary Design and Specification


    Contributors:
    C. L. Doughman (author) / R. D. Jessee (author) / P. Knauer (author)

    Publication date :

    1965


    Size :

    108 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





    Snap 50/Spur

    NTIS | 1966


    Snap-50/Spur

    D. R. Basel / R. W. Briggs / C. M. Gauthier et al. | NTIS | 1966


    The SNAP-50/SPUR Program

    Taylor, J. Edward / Szego, George C. | AIAA | 1966