b) A 400V, star connected, 3-phase, 6-pole, 50Hz induction motor has following parameters referred to the stator: $R_{stator} = R_{rotor} = 1 \Omega$, $X_{stator} = X_{rotor} = 2 \Omega$, $X_m = 15 \Omega$, full load torque is 100 Nm developed at slip equal to 0.025.
Show that the starting current is several times higher than the rated current and this problem can be avoided by starting the motor at a lower operational frequency. Use single phase equivalent circuit in your analysis.
The AC drive is operated at constant torque at constant V/f ratio.