A three-phase slip ring induction motor is fed from the rotor side with stator winding short circuited. The frequency of currents flowing in short circuited stator is
- A. Slip frequency
- B. Supply frequency
- C. Frequency corresponding to rotor speed
- D. Zero
Answer: A. Slip frequency
Explanation: The stator is the secondary of a rotor-fed machine, so its currents are at slip frequency relative to the field. Medium confidence.