If you have a single phase motor, there is no "backwards" in the way that power is feed to the motor.

The direction is built into the motor. Now some motors, can be reversed. But that is done by change the wiring connected INSIDE the motor junction box.

Now a 3 phase motor has 3 hot leads plus the ground. And the directions on those are control by the order in which the 3 hot wires are connected.

If you aren't sure check the motor label. But, in most cases 3 phase power is limited to commercial buildings.

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Bob, are you actually the one who wrote this article? Whoever did sure used some poor English.

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