A 450-hp, 500-VL, 50-Hz, 0.82 power factor, four-pole Y-connected synchronous motor has a synchronous reactance of 0.22 2 and negligible armature resistance. Ignore its friction, windage, and core...

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Extracted text: A 450-hp, 500-VL, 50-Hz, 0.82 power factor, four-pole Y-connected synchronous motor has a synchronous reactance of 0.22 2 and negligible armature resistance. Ignore its friction, windage, and core losses. a. Illustrate the phasor diagram and calculate Ia, Eb, ô and 0 at rated conditions. b. Calculate the induced torque and the maximum possible induced torque of the motor for this field current setting. c. If Eb is increased by2 %, determine the new armature current and power factor