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Doctors Medicines MCQs Q&A

  1. High field current
  2. Low short circuit ratio
  3. High core losses
  4. Low field current
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Option 4 : Low field current

  • When field current is reduced, the motor pull-out torque is also reduced in proportion
  • Lowering the field strength lowers the internally generated voltage (Ea)
  • This is usually undesirable as it will make the machine appear inductive
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