Description of "Varispeed" drive manufactured by Electric Construction Co using standard d-c motor supplied from a-c mains through mercury arc rectifier; speed can be varied over very wide range, as much as 1000 to 1, providing constant torque throughout this speed range; typical installation depicted shows 267-hp shunt wound d-c motor driving automatic drawbench.


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    Title :

    Variable-speed power drive


    Additional title:

    Engineer


    Published in:

    Engineer ; 182 , n 4739


    Publication date :

    1946


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English


    Keywords :


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