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- Subject
- Synchronous Motorselectrical-engineering-mcqs › synchronous-motors
- Published
- 19 Oct 2018
- Last updated
- 28 May 2026
Explanation
A synchronous motor produces synchronous torque solely when running at synchronous speed. It cannot develop this torque if the rotor speed deviates from synchronous speed, regardless of load or excitation conditions.
More Synchronous Motors MCQs
Practice related questions from the same subject.
- 1.What is the primary application of an over-excited synchronous motor?
- 2.What factors determine the maximum power output of a synchronous motor?
- 3.For a synchronous motor, the breakdown torque is proportional to which of the following?
- 4.What is the term for a synchronous motor operating at a leading power factor without any mechanical load?
- 5.When a synchronous motor is correctly synchronized with the power supply, operating without any load and experiencing negligible losses, what will be the condition of the stator current?
- 6.What does the coupling angle, also known as the load angle, of a synchronous motor represent?
- 7.What is the term for the highest torque a synchronous motor can produce while stationary, regardless of the rotor's angular position, at rated stator voltage and frequency?
- 8.What will happen to an unloaded salient pole synchronous motor if its field winding becomes open circuited?
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