A 200 kV A, 3.3 kV, 50 Hz three-phase synchronous generator is star-connected. The effective armature resistance is 5 Ω/phase and the synchronous reactance is 29.2 Ω/phase. At full-load calculate the voltage regulation for the following power factors:
(a) 0.707 leading
(b) unity
(c) 0.707 lagging