Answer Happy

Problem 3: A 3-phase induction motor with 6 poles is connected to a voltage source with an amplitude of 180 Vrms and a frequency of 100 Hz. The circuit has negligible line impedance and you can assume the simplified circuit model is valid. The motor has R, = 2 2, R=0.4 2, X, -3 2, X =12, and X=100 2. In addition, the motor is providing a Tdev of 5 Nm. What is the slip and speed of the motor in rpm using the derived slip/torque equation for the motor? (15 points) Problem 4: A 3-phase induction motor is connected to a voltage source with v. (t)=100 cos (3851) V The motor has R = 42, R=0.5 2, X₁=2 , X=122, and X = 50 2. a) If the motor is spinning at a speed of 1200 rpm while operating in its normal operating range, how many poles does the motor probably have? (5 points) b) What is the developed torque, Taev, for the motor when spinning at 1200 rpm? (5 points) c) What are all of the possible motor speeds if the developed torque, Taev, is 10 Nm? (10 points)