Reversing the direction of a single-phase AC motor requires modifications to the motor's starting coils' circuitry rather than simply changing the polarity of the phase and neutral wires. The discussion highlights that merely rotating the plug of an appliance, such as an old fan, does not affect its operation, confirming that polarity changes alone are insufficient. For effective direction reversal, specific electrical modifications are necessary, as detailed in the linked resource.
PREREQUISITESElectrical engineers, technicians working with AC motors, and hobbyists interested in motor control and automation will benefit from this discussion.
That's not quite right.srinaath said:hi alll...we know that by changing the polarity of phase and neutral , direction of ac motor can be changed. but is there any automated device that does this job? ...