Synchronous Motor Principles, Operation, and Power Factor Correction Techniques Quiz
easy
5 Questions
Question 1 of 5
What is the primary characteristic that distinguishes a synchronous motor from an induction motor?
Synchronous motors rotate at a speed directly proportional to the supply frequency.
Question 2 of 5
What type of excitation is required for a synchronous motor?
DC excitation on the rotor creates the magnetic field that interacts with the rotating field.
Question 3 of 5
How can a synchronous motor be used for power factor correction?
Over-excitation creates a leading power factor, compensating for lagging load current.
Question 4 of 5
What happens if the synchronous motor's rotor is not synchronized with the rotating magnetic field during startup?
The rotor must be locked in with the rotating field to operate.
Question 5 of 5
Which of the following is NOT a typical application of a synchronous motor?
Synchronous motors are not typically used to start transformers.
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