In case of a reluctance motor, when the load is increased so that it cannot maintain synchronous speed the motor will_____________?
Correct answer: D. run as induction motor
- A. become unstable
- B. draw excessive armature current and may burn out
- C. fall out of synchronism and come to stand still
- D. run as induction motor
Explanation
When the load exceeds the reluctance motor's pull-out torque, it loses synchronism and its squirrel-cage component allows it to continue as an induction motor. This operation occurs below synchronous speed with increased slip.
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