A 300 kW, 6600 V, 8-pole, 50 Hz, three-phase, Y-connected, non-salient pole (i.e., cylindrical rotor) synchronous motor has the following parameters:
Xs = 72 ohm /phase at 50 Hz, R =10 ohm/phase for operation near base speed, and Efo = 3200 V/phase at base speed.
(i) What is the base speed of the motor in mechanical rad/sec and rev/min?
(ii) Calculate the load angle ( of the motor when it delivers rated load at base speed.
(iii) Calculate the motor input current (I) and power factor (PF) of the drive for this condition of operation.
(iv) Calculate the maximum power and torque the motor is capable of developing while running at base speed.