For the following electric machine answer the following five cases: A 3-phase, 460−V,1740-rpm, 60−Hz,4-Pole, Y-connected wound-rotor induction motor has the following Parameters Per phase;
R 1=0.25Ω
R 2=0.2Ω
X 1=0.5Ω
X 2=0.5Ω
X m =30Ω
The starting current when started direct at rated voltage:
a)265.966 °A
b) 254.9∠−66 °A
c) 244.2∠−66 °A
d) 423∠−66 °A
e) none
