The term 'cogging' is associated with___________?
Correct answer: D. induction motors
- A. three phase transformers
- B. compound generators
- C. D.C. series motors
- D. induction motors
Explanation
Cogging is the tendency of an induction motor to refuse starting when rotor and stator slot harmonics lock magnetically. It is therefore associated with induction motors, especially when slot numbers have an unfavourable relationship.
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