SECTION C: INDUCTION MOTORS QUESTION 6 A 4-pole, 400-volt, 50-Hz, three phase, induction motor has a rated power of 22.5 kW and a rated speed of 1465 r/min. Calculate: 6.1 The rated per unit slip. .2 The Rated current if the efficiency and power factor at full load is 91% and 0.88 lagging, respectively. 6.3 The brake (output) torque. (3) (3) (2) [7]