Operation of Three-Phase & Single Phase Induction Motor

This course covers the comprehensive understanding of three-phase induction motors. It begins with the process of drawing the circle diagram of a three-phase induction motor, explaining the significance of no-load and block rotor tests. The course then delves into the different methods of starting a three-phase induction motor, including Direct Online (DOL) starting, reactor starting, and auto-transformer starting. It further discusses the concept of speed control in three-phase induction motors, introducing both traditional and modern methods. The course also covers the braking methods of three-phase induction motors, focusing on plugging and DC dynamic braking. Lastly, it transitions to single-phase induction motors, explaining their construction and operation. An illustrative example of a vehicle on a downhill track is used to explain regenerative braking.