The three control systems
To achieve the highest safety and availability levels of the OPAL reactor, it has three completely independent systems:
The first protection system is based on a state-of-the-art controller that monitors safety parameters to detect potentially dangerous conditions. Its main functions are to trigger the first shutdown system and to isolate the reactor containment system.
The second protection system of the reactor consists of a wiring system that monitors a different set of safety parameters.
Both systems have three independent and redundant measurement channels for each safety parameter.
The control and monitoring system is based on a cutting edge computerized system with a high level of availability, which processes information in real time. It monitors the reactor and plant parameters and reports them to the main control room, the emergency control center and the local supervision centers.
The system functions:
The neutron flux is monitored by the following set of measurement channels that cover the operating conditions of the reactor, from being switched off to being in full operation: