ABSTRACT
An electrical power system may be defined as having four major components:
In Chapter 4 we studied the generation, transformation, and transmission of electrical energy . We now turn our attention to the utilization of electrical energy . Electric utility engineers refer to these energy sinks as “loads” on the system . Loads are the most complex part of a power system because of their number and diversity . They range from a watt or two (e .g ., a plug-in night light) to megawatts (e .g ., an electrified rail system) . On even a medium-sized system, they number into the millions and are spread over the entire utility service area . Our objective in this chapter is to investigate a few of the more common load types . Bear in mind that entire books have been written on each load type, so our study must be concise and limited in scope . Still, this material should serve as a useful starting point for more in-depth work, should the reader have the need and interest .
