The 3-phase power works with three alternating currents that are separated uniformly in phase angle. The three phases share a common leg, neutral in the installations.
A three-phase circuit provides greater power density than a one-phase circuit at the same amperage, keeping wiring size and costs lower. In addition, three-phase power makes it easier to balance loads, minimizing harmonic currents and the need for large neutral wires.
Says DR. Google!!!:lol: