SKYDDSKRETS FOR ETT FLERTAL PAVERKNINGSELEMENT, SOM ER ANORDNADE PARALLELLT OCH I SAMMA RIKTNING, SERSKILT VENTILER I SHUNT- ELLER UTLOPPSLEDNINGAR FOR ANGAN VID KERNREAKTORANGGENERATORER

摘要

A turbine follow system and method for pressurized water reactors with a multiplicity of load bypass valves to provide a substitute load upon a load rejection by shunting excess steam around the load to a condenser. The system provides a circuit whereby not more than one valve is opened on any one system or operator error by utilizing circuit redundancy and a permissive gate operated by one of the redundant circuits.