A 20-MVA, 12.2 kV, 0.8-PF lagging , Y connected synchronous generator has a negligible resistance and syncronous reactance of 1.1 per unit. The generator is connected in parallel with a 60-Hz, 12.2-kV infinite bus that is capable of supplying or consuming any amount of real or reactive power with no charge in frequency or terminal voltage.
a) What is the synchrounous reactance of the generator in ohms?
b) What is the internal generated voltage Ea of this generator under rated conditions
c) what is the armature current Ia in this machine at rated condition?