A $60-$Hz$,110-$V$,$ six$-$pole, two$-$phase induction motor has the following equivalent$-$circuit

parameters:

rs $=0\mathrm{.}28$ Lls $=1\mathrm{.}60$ mH Lms $=41\mathrm{.}0$ mH

r$\text{'}$r $=0\mathrm{.}17$ L$\text{'}$lr $=0\mathrm{.}80$ mH

This machine is supplied at rated voltage and frequency. $($Use constant$-$speed, steady$-$state

analysis.$)$

a$.$ Calculate $,$

$,$ and $.$

b$.$ Use the single$-$phase equivalent circuit to compute the starting current, neglecting

transients. $(109\mathrm{.}5/-63\mathrm{.}75$A$)$

c$.$ Use the equivalent circuit to compute the no$-$load current. $($In absence of no$-$load speed,

or information to determine it$,$ you can approximate the no$-$load slip $0\mathrm{.}0.)(6\mathrm{.}84/-$

$89\mathrm{.}0$A$)$

d$.$ Use EQ $8-78($from your notes$)$ to calculate the blocked$-$rotor, i$.$e$.,$ starting, torque.

$(31\mathrm{.}31$ N$$m