Research reactor and auxiliary technologies for the Institute of Nuclear Research "Řež"

Delivery for the most important European research reactor

The LVR-15 reactor, operated at the Řež Research Center, is one of the most important European research reactors. In the second half of 2015, the reactor protection and control system (SOŘ) was renewed and the reactor power regulator was replaced by our company ZAT.
As part of the project, we replaced the original protection and control system from the late 1980s. We developed, installed and tested a completely new system for the Řež Research Center, including neutron flux measurement devices. This product has became the basis for a similar power regulator for large energy pressurized water reactors.

The purpose of the protection and control system is several seemingly simple activities from starting the reactor, through changing the power during operation and standard shutdown to supervising their safety. The system provides the operator with the information necessary to control the reactor and at the same time automatically evaluates the technological quantities. For example, if the rate of change of power exceeded the specified values, the SOŘ would immediately shut down the reactor safely. The emergency chain falls into safety category A according to ČSN EN 61226 and is solved in the form of a relay with high reliability.