The main advantage of a three-phase power system is a more balanced electrical load. This type of system uses three voltage sources to supply the same load.
Another advantage of a three-phase system is that it supplies continuous power. This helps three-phase motors run better than one-phase or two-phase motors. This type of power system is also helpful for large data centers, manufacturing companies and other industrial applications. For example, using one three-phase system eliminates the need to install multiple single-phase systems in a data center, reducing cabling and installation costs. Reducing the amount of equipment needed to operate the data center also reduces cooling costs and saves energy.