A salient-pole synchronous generator with saturated Xd = 1.57

A salient-pole synchronous generator with saturated Xd = 1.57

A salient-pole synchronous generator with saturated synchronous reactances Xd = 1.57 per unit and Xq = 1.34 per unit is connected to an infinite bus of rated voltage through an external impedance X bus = 0.11 per unit. The generator is supplying its rated MVA at 0.95 power factor lagging, as measured at the generator terminals.
a. Draw a phasor diagram, indicating the infinite-bus voltage, the armature current, the generator terminal voltage, the excitation voltage, and the rotor angle (measured with respect to the infinite bus).
b. Calculate the per-unit terminal and excitation voltages, and the rotor angle in degrees.

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