TRIAL COMMISSIONING OF THE VIBRONOISE DIAGNOSTICS SYSTEM AT SOUTH-UKRAINE NPP-2

In December 2015, within the framework of the Complex (Consolidated) Safety Upgrade Program for the Units of NPPs, the trial commissioning of the vibronoise diagnostics system (SVShD) took place at South-Ukraine NPP-2.

During outage-2015, SVShD was installed and its complex adjustment took place.

SVShD is designated for vibration monitoring and diagnostics of the main technological equipment of the reactor facility, including the reactor with the core internals, to detect abnormal vibration states of the equipment caused by its defects, change of its fastening conditions or increase in hydrodynamic loads to the equipment from the primary coolant flow in the normal operation mode.

Based on the positive results of the preliminary complex testing and readiness of SVShD for trial operation, it was decided to carry out trial commissioning of SVShD and metrological certification.