New transformer to be installed at Mochovce NPP

Apr 2, 2021
Posted by Patrick Haddad

This year’s series of general overhauls (GO) has begun at the Mochovce Nuclear Power Plant (NPP) in Slovakia, including the installation of a new transformer. 

The main goal of the GO is to replace nearly a fifth of the fuel in the reactor and to carry out planned repairs and investment projects to increase safety. The overhaul will last about a month, but work on the 7% capacity increase will continue after the overhaul is completed.

The work includes the replacement of the turbine generator stator and unit transformer. In a similar way, Mochovce 2 was upgraded in late 2020.

During the first in the series of four planned overhauls this year – two at Bohunice NPP and two in Mochovce NPP – inspection of the reactor pressure vessel, emergency systems, technical water system, steam generators welds and other important components is planned. After the work is completed, power utility Slovenske Elektrarne will verify the containment tightness of the plants.

“The shutdown schedule has been elaborated in detail, all conditions and tools are prepared so that we can perform every activity in a safe and smooth way, at the required quality, while adhering to strict anti-pandemic measures, said Mochovce NPP director Martin Mráz.

Source: Nuclear Engineering International

Photo (for illustrative purposes): The cooling towers of Units 1 and 2 at Mochovce NPP / Courtesy of Slovenske Elektrarne


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