An over-excited synchronous motor takes__________?
Correct answer: A. leading current
- A. leading current
- B. lagging current
- C. both A. and (b)
- D. none of the above
Explanation
Increasing field excitation beyond the unity-power-factor point makes a synchronous motor over-excited, causing it to draw leading current. This leading current can compensate lagging current in other loads.
Last updated
Practise Electrical Machines
1,061 free Electrical Machines MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
The typical value of SCR for modern alternator is____________?
If the efficiency of a machine is to be high, what should be low __________?
Which of the following does not change in a transformer ?
In a transformer the energy is conveyed from primary to secondary_________?
A transformer core is laminated to__________?