说明：  Use the parameters of the Y-induction motor Show the torque plot versus speed and also the torque versus s at rated voltage. VLL reduced to 60 of VLL rated then to 30 of rated voltageR2 increased to have every time one of the following values: 0.2, 0.6, 3 and 10 ohms. This problem is from electrical machinary book its problem 7-7 but its done on matlab not by hand ...