An induction motor has thefollowing specifications: a 8-pole squirrel cage rotor, operates at25 hp off of a 220 V line-to-line 3-phase service, 60 Hz, 64 amps of line current, and under full load runs at 830 RPM. The motordraws 20.8 kW at full load.
(i) Calculate the slip.
(ii) Determine the percent speed regulation if the no-load speed is895 RPM.
(iii) Determine the power factor of the induction motor.
(iv) Determine the motor torque in ft-pounds.
(v) Determine the percent power efficiency of this induction motor.