Machine-translated by Google. Questions are authored in English.
Top

Discussion

Pole changing gives an induction motor

  • A.an improved power factor at every load
  • B.two or three fixed speeds
  • C.continuously variable speed over a wide range
  • D.the ability to operate above its synchronous speed continuously

Answer: B

A specially wound stator can be reconnected for different pole numbers, and the synchronous speed changes in inverse proportion. It is a discrete rather than a continuous method and is now largely displaced by converters.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.