Electrical Power Transmission Trainer

The public electric power is supplied almost exclusively using three-phase systems with frequency of 50 or 60 Hz, depending on the country. The major advantage of AC three-phase over DC power systems is that the electrical power is generated economically in large power stations relatively far from the end users, transported at high voltage over long distances with very little power loss and finally made available to the consumers providing them with two different levels of voltage depending on the application needs.