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Homework Help: No-load voltage

  1. May 1, 2010 #1
    1. The problem statement, all variables and given/known data

    The ratings of a dc generator are given (16 kW, 250 V, and 64 A) when it rotates at 1000 rpm. Then the question asks to find the no-load voltage at 1000 rpm when there isn't a circuit hooked up to the generator.

    2. Relevant equations

    P = IV
    V = IR
    Kirchhoff's circuit rules
    \omega = 2(\pi)(f)

    3. The attempt at a solution

    I know the answer is suppose to be 2400 V, but I have no idea why the no-load voltage is greater than 250 V.
  2. jcsd
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