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Lesics - How does an Induction Motor work?



The invention of induction motors permanently altered the course of human civilization. This hundred-year-old motor—invented by the great scientist Nikola Tesla—is the most common motor type, even today. In fact, about 50 percent of global electric power consumption is due to induction motors. Let`s get into the workings of induction motors, or more specifically, into Nikola Tesla`s genius thinking.



You might have seen that in order to start a high power rating induction motor, a starting technique called star-delta is used. In this video, we will understand why a star-delta starter is needed, and how it is accomplished practically with help of animation.



Working of 3 Phase Induction motor is explained in this video with help of animation. They are the most commonly used electric motors. Here basic operation principle of an induction motor is introduced in a logical manner. Concepts of rotating magnetic field, synchronous speed and slip is well introduced in this video.



Induction motors have been ruling the industrial world for many decades. In the induction motors used in lift and hoists, you will see a type of rotor called a slip ring rotor, whereas in most of the other applications you will see a simpler, squirrel cage type of rotor. Why are there two different designs of rotor construction for induction motors? We will explore this in the video.