AC MOTOR THEORYAC MotorsFigure 1 Three-Phase StatorFrom one instant to the next, the magnetic fields of each phase combine to produce a magneticfield whose position shifts through a certain angle. At the end of one cycle of alternating current,the magnetic field will have shifted through 360°, or one revolution (Figure 2). Since the rotorhas an opposing magnetic field induced upon it, it will also rotate through one revolution.ES-12 Page 2 Rev. 0
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