Commissioning of the optoelectronic system for automated tilt measurement of the reactor of the third unit in the Mochovce nuclear power plant

A measuring system for automated measurement of the tilt of the reactor vessel of the third unit was developed in the Department of Optoelectronic Measurement Methods of the Institute of SAV Measurement and in 2022, together with the third unit of the Mochovce nuclear power plant, it is put into continuous operation. This measuring system uses the principle of hydroleveling and pendametry with optoelectronic sensing of measured values with a resolution of measuring the height of the level and the displacement of the pendameter hinge at the level of 1 micrometer. The measuring system is already in continuous operation and contributes to increasing the safety standards of the operation of the nuclear power plant in Mochovce.

Solvers: M.Keppert, M.Trutz, A.Kulišov, M.Janošíková, P.Ondrejkovič and M.Hain

Applicator of the result: Slovenské elektrárne, a.s.

Fig.1: Graphic representation of the time course of the change in the size and tilt angle vector of the reactor vessel at the 3rd block of the Mochovce nuclear power plant

Fig.2: Test bench with uncovered pendametric and hydroleveling sensors of the reactor vessel inclination measurement system