How can motor rotation be reversed in a three-phase motor?

Reversing the rotation of a three-phase motor can be accomplished by altering the phase sequence. In a three-phase system, the order of the phases determines the direction of the magnetic field that rotates within the motor. By switching any two of the three phases, the phase sequence is inverted, which in turn reverses the direction of the motor. This method is widely used because it is efficient and does not require mechanical changes or adjustments to the motor or the load it drives.

The method of changing speed settings on the control panel primarily affects the operational speed of the motor rather than its direction. Modifying the voltage supply can influence the motor's performance but does not directly affect the direction of rotation. Adjusting mechanical connections might be necessary for installation or maintenance, but it is not a method for reversing motor rotation during normal operation.