Assignment:
A 60-Hz 24-kV 250-MVA Y-Connected salient-pole synchronous generator (Xd=1.75 per unit, Xq=1.40 per unit) is operating with a phase-A to a neutral voltage of 14 cos wt kV and a phase-A current of 5.75 cos wt kA; the currents and voltages are balanced at three-phase. The rotor angle is known to be wt+37 degrees.
a) Draw a phasor diagram for this condition indicating the terminal voltage, armature current, location of direct and quadrature axes.
b) Using the phasor diagram in part (a), calculate the magnitude of the direct-and quadrature-axis armature voltage and current.