This lesson describes how an electric AC induction motor uses the principles of magnetism and magnetic fields to convert electrical energy into mechanical energy.
• Describe the makeup of a magnetic field
• State the law of magnetism
• Define the following terms: – Magnetic flux – Polarity – Motor slip – Synchronous speed • Describe electromagnetic force • Discuss the theory behind the operation of single-phase AC motor rotating stator fields • Explain the rotation of an AC squirrel cage rotor • Discuss the three-phase motor’s rotating stator field and its associated waveform
