A three-phase, two-pole, 400-V (per phase), 60-Hz induction motor develops 37 kW (total) of mechanical power (Pm) at a certain speed. The rotational loss at this speed is 800 W (total). (Stray-load loss is negligible.)
a. If the total power transferred to the rotor is 40 kW, determine the slip and the output torque.
b. If the total power into the motor (Pin) is 45 kW and RS is 0.5 Ω find IS and the power factor.