Phasor Diagram of the Induction Motor

This animation, created by Mahmoud Riaz of the University of Minnesota, presents an example in motion of an induction motor. As Riaz writes, "The steady-state characteristics of an induction motor are described by means of phasors, which are computed using the standard equivalent circuit and are then plotted in the complex plane in a speed range from standstill to synchronous. The input voltage is chosen as reference; the stator and rotor currents and the stator and rotor fluxes are shown. The trajectories of these phasors are seen to approximate portions of circles. The corresponding torque-speed curve is also plotted."