A $75$Hp$,460$V$,4$pole motor has the following equivalent circuit parameters:

R$1=0\mathrm{.}045$ R$2=0\mathrm{.}247$

X$1=0\mathrm{.}266$ X$2=0\mathrm{.}122$

RC $=768$ Xm $=9\mathrm{.}02$

S $=0\mathrm{.}012$

You are supplying power to this motor with a three$-$phase Delta$-$Wye con$-$

nected $150$kVA transformer that has an impedance referred to the low side

of $0\mathrm{.}06+$j$0\mathrm{.}13.$

a$.$ What is the motor terminal voltage when the motor is operating at full

load?

b$.$ What is the terminal voltage at locked rotor?