A 440-V, 60Hz, 4-pole, delta connected three phase induction motor has the following parameters in ohms/phase.
R1= .3, X1= .9, R2=.6, X2=.9 Rc=150, Xm=60
If the rotational losses are 6% of the developed power
A.) determine the efficiency when it runs at 3% slip.
B.) Calculate the starting current offering max points and will give a 5 star rating