Two alternators of equal rating operate in parallel. If one alternator has higher excitation, it will:

Option 1: Take more kW load

Option 2: Take more kVAR load

Option 3: Run at higher speed

Option 4: Supply less current

Correct Option: 2

Explanation

Higher excitation means higher internal EMF, so that alternator supplies more reactive power. Real power sharing remains unchanged unless mechanical input is varied.

Two alternators of equal rating operate in parallel. If one alternator has higher excitation, it will:

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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