A 500-kVA, 60Hz, 5000V, Y-connected, 10 pole synchronous has internal parameters of Armature Resistance 1ohm amd Synchronous Reactance 10ohms. The generator is operating at rated values and 0.9 pf leading. Pmech=10000W, Pcore=5000W, Pstray=1000W
a.) Find the internal induced voltage and torque angle.
b.) Find the input power to the generator in horsepower and watts.
c.) Find the input torque to the generator.
d.) If armature current and field current are kept constant, find the new value of the terminal voltage if the power factor is changed to 0.7 lagging.