A three-phase, wye-connected, cylindrical-rotor synchronous generator rated at 10 kVA and 230V has a synchronous reactance of 1.5 Ω per phase and an armature resistance of 0.5 Ω per phase.
(a) Determine the voltage regulation at full load with:
(i) 0.8 lagging power factor, and
(ii) 0.8 leading power factor.
(b) Calculate the power factor for which the voltage regulation becomes zero on full load.