Key Foundations of the Three Phase System

The three-phase system refers to the most common mode of distribution, generation and transmission of electric power in alternating current. This system is basically based on the use of three balanced sine waves, 120 degrees apart, so that it is feasible to balance the system properly, making it more efficient when compared to three isolated systems. The process of transporting electric power from the generating units to the consumer units is basically composed of three subsystems. The system of energy generation, formed by the elements responsible for the conversion of energy from some primary source into electric energy.

The transmission system is constituted by the components responsible for the transportation of the energy obtained by the different generation systems to the distribution systems interconnected by the transmission system. The distribution system is composed of the elements responsible for the adequacy of energy for the use of large, medium and small consumers. Three-phase electric motors are usually more efficient through full use of magnetic circuits. The transmission lines allow the absence of the neutral and the coupling between the phases to reduce the electromagnetic fields.