If the centrifugal switch does not open at 70 to 80 percent of synchronous speed of motor, it would result in_________?
Correct answer: A. damage to the starting winding
- A. damage to the starting winding
- B. damage to the centrifugal switch
- C. overloading of running winding
- D. none of the above
Explanation
If the centrifugal switch remains closed, the starting winding stays energized after the motor has accelerated. The high current in this winding causes overheating and can damage it.
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 shaded pole motor is used for__________?
The speed/load characteristics of a universal motor is same as that of_____________?
In a ceilingfan employing capacitor run motor____________?
Speed torque characteristic of a repulsion induction motor is similar to that of a D.C____________?
In split phase motor main winding is of _____________?
In repulsion motor, maximum torque is developed when____________?