Q2. Assume that a 200 MVA, rated 15 kV (line), 3-phase, Y-connected AC generator has negligible losses and synchronous reactance X = 2.1 (2 per phase. It is operated on an infinite bus having a phase voltage of 8660.5 V and angle 0. The internal emf E and the power angle demf of the generator are found to be 23 kV and 35, respectively. a. Draw the Generator equivalent circuit (1 Mark) b. Determine the line current and 3-phase real and reactive power delivered to the infinite bus (2 Marks) c. If the AC generator has been set to deliver 90 MVA to infinite bus at 0.8 p.f. lagging, determine E, 8, Is