Note: - You are attempting question 4 out of 12 A 3 phase, 11 kV, 25 MVA, 60 Hz, salient pole, synchronous motor is running from a 11 kV, 60 Hz, balanced three-phase supply. The machine reactances are...

Extracted text: Note: - You are attempting question 4 out of 12 A 3 phase, 11 kV, 25 MVA, 60 Hz, salient pole, synchronous motor is running from a 11 kV, 60 Hz, balanced three-phase supply. The machine reactances are X 1.2 p.u, = 0.6 p.u (with the machine rating as base). Neglect mechanical losses and armature copper losses. The maximum power input is obtained with no field excitation. Determine the power factor of the motor in this condition. (a) 0.32 Lagging (b) 0.32 Leading (c) 0.43 Lagging (d) 0.43 Leading Answer O A O B Submit fs v & 5 7 8