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A switched reluctance machine has

  • A.permanent magnets on its rotor and a wound stator
  • B.a cage winding on its rotor and a wound stator
  • C.salient poles on both its stator and its rotor
  • D.salient poles on its stator and a smooth cylindrical rotor

Answer: C

Correct answer: salient poles on both its stator and its rotor

The doubly salient construction is what defines the machine. The rotor is plain shaped steel with no winding, no magnet and no cage, which makes it cheap, rugged and able to run hot and fast - and it is why the machine cannot start or run without its electronic converter.

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