What is the effect of reversing two phases of a three-phase motor?

Reversing two phases of a three-phase motor results in the motor changing its direction of rotation. This is because three-phase motors rely on the sequence of the electrical phases to create a rotating magnetic field. When two of the phases are switched, the rotation of the magnetic field is effectively reversed, causing the motor to rotate in the opposite direction.

Understanding this principle is important; it is a common practice in motor control applications to reverse the direction of a motor for various operational purposes. This ability to control motor direction is crucial in applications such as conveyors and various types of machinery where directionality is key.

Regarding other possible effects, running at a higher speed or stopping functioning does not occur simply from reversing phases. Overheating could occur in other contexts, but it is not a direct consequence of phase reversal itself. Thus, the outcome of reversing two phases straightforwardly leads to the motor spinning in the opposite direction.