Define The Principle Of 3 Phase Induction Motor

By | December 12, 2022



Three-phase induction motors are the most frequently used electric motors in the industrial sector. These motors use a rotating magnetic field created by the interaction of three currents of different phases to generate a torque, allowing them to drive machines and equipment in a wide range of applications. Despite their widespread usage, many people are unaware of the underlying principles governing how these motors operate. Understanding the fundamentals of three-phase induction motors can help engineers and technicians troubleshoot issues, make design decisions, and improve overall efficiency.

The principle of a three-phase induction motor is based on the concept of electromagnetism and Faraday's law of induction. As the name suggests, this motor is powered by three alternating currents of different phases. The interaction between these currents creates a rotating magnetic field, which induces an electrical current in the rotor. This current, in turn, produces a magnetic field that opposes the rotating magnetic field created by the stator, resulting in the creation of a torque that drives the motor. In this article, we will explore the science behind the three-phase induction motor and discuss the benefits of this type of motor compared to other types of motors.


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