A three-phase round-rotor synchronous generator, rated 10kV, 50MVA, has armature resistance R of .01 per unit and synchronous reactance of Xd of 1.65 per unit. The machine operates on a 10-kV infinite-bus delivering 2000 A at 0.9 PF leading. a) Determine the internal voltage Ei and the power angle Delta of the machine. Draw a phasor diagram depicting its operation. b) What is the open-circuit voltage of the machine at the same level of excitation? c) What is the steady-state short-circuit current at the same level of excitation?