» Unlabelled » Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction ?

Tuesday, 27 August 2013

Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction ?

(a)     Reduced current method
(b)     Tap changing control of transformer
(c)     Series parallel operation of motors
(d)     All of the above

Ans: b


at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)