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Is this motor over-excited or under-excited

  1. May 9, 2013 #1
    1. The problem statement, all variables and given/known data

    A three phase eight pole 50 hz star connected synchronous generator operating at nominal voltage of 6.6kv line, has a synchronous reactance of 6.6 ohm and negligible losses. When the field current is set to give an open circuit voltage of 4.5kv per phase the output power from the generator is 2.5Mw.

    2. Relevant equations

    3. The attempt at a solution
    I think its overexcited because when i analyze it with the current source replaced with a voltage source E and the synchronous reactance in series with the output, the voltage source E is greater than the input voltage 3810V terminal on stator so its supplying current from the current source but im not sure if im right :/??,
  2. jcsd
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