The reactor emergency stop system and emergency core cooling system maintain the safety of nuclear power plants by stopping, cooling, and containing the reactor.
Features
Maintaining the safety of nuclear power plants in an emergency
Stopping: Inserts the control rods into the reactor and stops the nuclear reaction to perform an emergency shutdown of the reactor.
Cooling: Injects cooling water into the reactor using emergency reactor core cooling water pumps.
Containing: Closes the isolation valves to contain radioactive material in the reactor vessel.
Improved reliability and maintainability through the use of digital technology
Quadruple modular redundancy using 2 out of 4 logic
Facilitates testing and maintenance during operation
Overview of Nuclear Power Plant Safety
Overview of the digital safety system
Quadruple configuration of four modules (modules 1-4) that are electrically and physically isolated
Assuring reliability Quadruple modular redundancy (2 out of 4 logic)
Improved maintainability Facilitates testing and maintenance during operation (Bypassing one system, continuing operations with 2 out of 3 logic)
