If the prime mover input of an alternator running in parallel is increased, its:

Option 1: Voltage increases

Option 2: Reactive power increases

Option 3: Real power increases

Option 4: Frequency increases

Correct Option: 3

Explanation

Increasing prime mover input increases rotor torque and load angle δ. According to P = (EV/Xs) sinδ, real power output increases, while system frequency remains constant.

If the prime mover input of an alternator running in parallel is increased, its:

Explanation

In 1-ϕ IM if the slip of motor is S with regard to the forward rotating flux, then its slip with regard to the backward rotating flux will be:

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