• R. Fehr

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    The Basics of AC Motors

    Sept. 1, 2003
    Powering industry since replacing the steam engine From tiny hysteresis motors that drive electric clocks to huge synchronous motors that develop more than 50,000 hp, the alternating...
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    The Basics of Transformers

    Aug. 1, 2003
    By raising and lowering voltage levels, transformers make power systems versatile.
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    The Basics of Parallel Circuits

    June 1, 2003
    Components in parallel share current, but not necessarily equally.