A 74.6-kW, three phase, 440-V (line to line), four pole, 60-Hz induction motor has the following (per phase) parameters referred to the stator circuit:
Rs=0.06-Ω, Rr=0.08-Ω, Xs=0.3-Ω, Xr=0.3-Ω, Xm=5-Ω
The no-load power input is 3240-W at a current of 45-A. Determine the line current, input power, developed torque, and efficiency at s=0.02.