The full-load efficiency of a 400 V, 3-phase, 6 pole induction motor is 85%. It draws a line current of 80 A at 0.8 power factor lagging when it delivers full-load at 5% slip. Calculate the shaft output and shaft torque.
The power of the motor is
The mechanical power output is
The synchronous frequency of a 6-pole motor is 1000 min-1, which corresponds to angular
The angular velocity of the shaft is
The shaft torque: