railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Alternator and Synchronous Motors
If If is the full load current/phase and %Xs is the percentage synchronous reactance, maximum power output of an alternator is:
1
Pmax = \(\frac{{\% {X_s}{I_f} \times 100}}{E}\)
2
Pmax = \(\frac{{{I_f} \times 100}}{{E{X_s}}}\)
3
Pmax = \(\frac{{E{I_f} \times 100}}{{\% {X_s}}}\)
4
Pmax = \(\frac{{\% {X_s} \times 100}}{{E{I_f}}}\)