This study focuses on monitoring the evolution of the hydrothermal parameters of a pressurized water reactor, with an estimated electrical output power of 600 MWe, using a simulator called PCTRAN, version 6.0.4, available from the IAEA, which is based on a generic two-loop pressurized water reactor (PWR) system In the second scenario, a forced shutdown was attempted by the immediate insertion of the control rods, which resulted in confusion in the water levels inside the compressor, the steam generator, as well as the flow rate of the first cooling cycle. The effectiveness of the protection system inside the reactor to avoid any emergency situation or change Out of control for various hydrothermal parameters The changes in the parameters of the installation did not result in any accident or unexpected danger, these parameters eventually returned to their acceptable values.

PCTRAN, Thermal hydraulics, PWR, turbine leading mode, negative reactivity.