A 1200 kVA, 6600 volts, 3-phase Y connected alternator, has an effective resistance of 0.4 ohms and a synchronous reactance of 6 ohms per phase. It delivers full load current at 0.8 lagging power...

A 1200 kVA, 6600 volts, 3-phase Y connected alternator, has an effective resistance of 0.4 ohms and a synchronous reactance of 6 ohms per phase. It delivers full load current at 0.8 lagging power factor at rated voltage. What will be the generated voltage if the power factor is change to 0.8 leading. Solve for the % voltage regulation both for 0.8 lagging and 0.8 leading power factors.