The three control systems
To achieve the highest safety and availability levels of the OPAL reactor, three completely independent systems are provided:
- First protection system of the reactor
- Second protection system of the reactor.
- Control and monitoring system of the reactor.
The first protection system of the reactor is based on a last generation controller, which monitors safety parameters to detect potentially dangerous conditions. Its main functions are to trigger the first shutdown system and to isolate the confinement.
The second protection system of the reactor consists of a wiring system that monitors a different set of safety parameters.
Each of these systems have three independent and redundant measurement channels for each safety parameter.
The control and monitoring system is based on a cutting edge distribution, real-time computerized system of high availability; it monitors every reactor and plant parameter and sends reports to three manned facilities: to the main control room, to the emergency control center and to local supervision stations.
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