Dukovany Nuclear Power Plant – Reconstruction of sectional DC switchboards

In June, as the winner of a public tender, our company entered into a contract with ČEZ for the complex replacement of sectional DC switchboards in the Dukovany Nuclear Power Plant. These switchboards distribute electricity between the rectifier, the battery and DC consumers, protects outlets against overload, cycling and capacity testing of the battery. The aim is to comprehensively replace them with new switchboards over the coming four years.

The scope of the work includes the upgrade of the equipment, improvements in its reliability and safety and the reduction of the operating costs of maintenance. At the same time it is necessary to ensure compliance with the requirements of currently valid standards and regulations. Within the framework of our work we use our internal know-how as much as possible and provide our customers with fully prepared designs and documentation. At the same time, the production of the switchboards is commissioned and subsequently checked by Elektro Kroměříž. This is followed by the dismounting of the existing switchboards and the installation, inspection and testing of the new switchboards during outages of the individual power plant units. At the end of the process, as-is documentation is prepared, along with accompanying technical documentation. As part of this investment, 342 arrays will be replaced in 24 switchboards (for information – the average weight of one switchboard array is about 300 kg).