A loss-less cylindrical rotor synchronous generator is floating on the system bus-bar after ___

A loss-less cylindrical rotor synchronous generator is floating on the system bus-bar after being properly synchronised and is running at no-load.

Now, if the prime mover is acting as a mechanical load on the machine, then

A. the torque developed by the machine will act in the saine direction as the prime mover torque.
B. the torque developed by the machine will act in the opposite direction to that of the prime mover torque.
C. the machine rotor would fall-back and the induced emf would lag behind the terminal voltage.
D. the machine rotor would overspeed and the induced emf would lead the terminal voltage.

Show Answer

Answer: C

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