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

Discussion

Loading a synchronous machine beyond a certain value makes it slip poles. That limiting value is known as the

  • A.synchronising torque
  • B.pull-out torque
  • C.pull-in torque
  • D.starting torque

Answer: B

It corresponds to the peak of the power-angle curve, and beyond that point no load angle exists at which the developed torque can match the demand. Raising the excitation raises it in direct proportion, which is why an important drive is run somewhat over-excited.

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

Post your comment

Please log in or register to post a comment.