15-07-2017, 03:20 PM
Power engineering, also called power system engineering, is an electrical engineering subfield that deals with the generation, transmission, distribution and use of electrical power, and electrical appliances connected to such systems. Although much of the field deals with the problems of three-phase alternating current, the standard for large-scale power transmission and distribution in the modern world, a significant part of the field deals with the conversion between AC and DC and The direct current. The development of specialized energy systems, such as those used in aircraft or in electric rail networks. Electrical engineering draws most of its theoretical base from electrical engineering.
An electrical power system is a network of electrical components deployed to supply, transfer and use electrical energy. An example of an electric power system is the grid that provides power to an extended area. A power grid power system can be broadly divided into the generators that supply the power, the transmission system that transports the power from the generation centers to the load centers and the distribution system that feeds the energy to the houses And nearby industries. Smaller power systems are also found in industry, hospitals, commercial buildings and homes. Most of these systems are based on three-phase AC, the standard for large-scale power transmission and distribution throughout the modern world. Specialized energy systems that do not always depend on three-phase alternating current are found in airplanes, electric rail systems, transatlantic and automobiles.