Electrical Engineering XYZ MCQs
In induction generator the slip is always:
- Zero
- Positive
- Negative
- Any of the above
Correct answer: 3. Negative
Explanation: In generator operation, a prime mover (turbine or engine) drives the rotor above synchronous speed (negative slip). The stator flux induces current in the rotor, but the opposing rotor flux is now cutting the stator coils, a current is induced in the stator coils 270° behind the magnetizing current, in phase with magnetizing voltage. The motor delivers real (in-phase) power to the power system.