How can you change the direction of rotation of a three-phase motor?

Changing the direction of rotation of a three-phase motor can be effectively accomplished by switching the positions of any two of the three supply wires. In three-phase systems, the motor's rotation direction is determined by the phase sequence of the electrical power being supplied. By interchanging two of the supply wires, the phase sequence is reversed, which in turn reverses the magnetic field rotation within the motor. As a result, the motor's rotor follows this change, thus altering its rotational direction.

This principle is fundamental in three-phase motor applications because it provides a simple and efficient method to reverse motor rotation without the need for complex adjustments or additional equipment. Understanding this process is crucial for troubleshooting and operational adjustments in industrial and commercial settings where three-phase motors are commonly used.