A 120-V, 60-Hz, capacitor-run, two-pole, single-phase induction motor has the following parameters: Lmain = 47.2 mH Rmain = 0.38?, Laux = 102 mH Raux = 1.78?, Lr = 2.35?H R r = 17.2??, Lmain, r = 0.342 mH Laux, r = 0.530 mH. You may assume that the motor has 48 W of core loss and 23 W of rotational losses. The motor windings are connected with the polarity shown in Figure with a 40?F run capacitor.

a. Calculate the motor starting torque. With the motor operating at a speed of 3490 r/min, calculate

b. The main and auxiliary-winding currents,

c. The total line current and the motor power factor,

d. The output power and

e. The electrical input power and the efficiency.

Main Vyaain winding ell Auxiliary winding aus