PAST EXAM PROBLEM

A six$-$pole squirrel$-$cage induction motor is driven by an inverter using field$-$oriented control, under steady$-$state operation. The rotor is spinning at $1100$ rpm $,$ and the inverter output frequency is $55$ Hz $.$ The motor parameters are: $r_s=0\mathrm{.}05,x_{ls}=x_{lr}^{\text{'}}=1,x_M=30,r_r^{\text{'}}=0\mathrm{.}1,{}_b=377ra\frac{d}{s}.$

Calculate the load torque.