ABSTRACT
There are various ways to describe electrical engineering. The following scheme (Irwin and Kerns, 1995, pp. 5-10) divides the discipline into seven areas:
Power engineering: Generating and transferring electrical energy from one location to another, and transforming it into forms that can do useful work. Power is most often generated by conversion of mechanical energy from a rotating shaft to electric energy in a generator. Power also can be produced by solar cells that convert solar energy into electrical energy or from chemical reactions, such as a battery. Power for residential and industrial use is distributed by high-voltage power lines and is used for purposes such as heating, illumination, and driving electric motors.
