3-Phase Induction Motor Has Its Speed Controlled Using A Voltage Source Inverter. The Input Power To The Motor Is 32 KW And The Stator Losses Are 1200 W. If The Slip At 50 Hz Supply Frequency Is 5% And The Friction And Windage Losses Are 750 W. Neglecting Rotor Iron Loss And The Inverter Losses, Determine: A. The Input Power To The Rotor. B. The Rotor

 

Q2. A 3-phase induction motor has its speed controlled using a voltage source inverter. The input power to the motor is 32 kW and the stator losses are 1200 W. If the slip at 50 Hz supply frequency is 5% and the friction and windage losses are 750 W. Neglecting rotor iron loss and the inverter losses, determine: a. The input power to the rotor. b. The rotor copper losses. c. The total mechanical power developed by the rotor. d. The output power of the motor. e. The motor efficiency. f. The synchronous speed at 25 Hz, given the synchronous speed at 50 Hz is 1500 rpm.