Star-delta starting of motors is not possible in case of____________?
Correct answer: A. single phase motors
- A. single phase motors
- B. variable speed motors
- C. low horse power motors
- D. high speed motors
Explanation
Star-delta starting requires a three-phase motor with accessible stator winding terminals, so it cannot be used with a single-phase motor. It reduces the starting voltage and current by initially connecting the windings in star.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
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.
More Electrical Machines questions
A double squirrel-cage induction motor has______________?
In case of the induction motors the torque is___________?
The injected e.m.f. in the rotor of induction motor must have__________?
The starting torque of a squirrel-cage induction motor is___________?
In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be___________?
In case the air gap in an induction motor is increased____________?