What is Three phase power?
A form of alternating current. In AC, electrons move back and forth 50 or 60 times per second. In single-phase circuits, all the electrons wriggle simultaneously. This results in power supply drop to zero at the moment of flow direction change. In 3-phase power circuits, three separate wires are used, where electrons change direction of their movement at slightly different points of time, which does not interrupt power supply. Three-phase power is mostly used in dwellings with major central air conditioning units, heavy tools, or other power-consuming devices.