DOL starting of induction motors is usually restricted to_____________?
Correct answer: A. low horsepower motors
- A. low horsepower motors
- B. variable speed motors
- C. high horsepower motors
- D. high speed motors
Explanation
DOL starting draws a large inrush current, which can cause excessive voltage drop in the supply network. It is therefore generally used only for low-horsepower motors whose starting current is acceptable.
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
The speed of a squirrel-cage induction motor can be controlled by all of the following except_____________?
The 'crawling" in an induction motor is caused by___________?
The power factor of an induction motor under no-load conditions will be closer to_____________?
In a three-phase induction motor, the number of poles in the rotor winding is always__________?
In three-phase squirrel-cage induction motors____________?
The maximum torque in an induction motor depends on___________?