Basic Principles of Planning VAR Control on the American Electric Power System

The broad principles are described which are used in the planning of VAR supply and control on the American Electric Power System. The discussion relates to the selection, utilization, and coordination of various VAR supply and control equipment, such as generators, synchronous condensers, static capacitors, and shunt reactors. Emphasis is placed on the importance of a well planned and coordinated VAR control in the design of a reliable power system.