Some Aspects of the Process Control and Protection Systems of a Westinghouse PWR

The paper describes, briefly, some of the control and protection systems of a Westinghouse PWR. The behavior of the reactor during load change transients is depicted and the response of some of the control systems is given. The criteria used in the design of the protection system and the relationship of the various standards to the design are discussed. The application of these criteria to the protection system is illustrated by the use of two typical protection systems. Future developments in the field are considered.