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CEZ a.s. - The first Temelín Unit produces electricity again. The planned outage lasted two months.


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    9. 6. 2022

    The first Temelín Unit produces electricity again. The planned outage lasted two months.

    Today at 2:21 o'clock, Unit 1 of Temelín NPP started to produce electricity again. After replacing a quarter of the fuel assemblies, operators have connected it to the transmission system. The technicians also checked the safety systems, preventively replaced the generator's rotor, and managed to do almost eighteen thousand activities, including six dozen investment actions. Together with the Dukovany power plant, all six nuclear units are currently operating. The fourth Unit of the Dukovany Nuclear Power Plant is now planned to be shut down for inspection and refueling.

    Temelín's Unit 1 began to deliver electricity into the grid again at 50 % of the reactor rated power. The energy sector is now waiting for tests at eighty percent of reactor rated power and verification of the proper functioning of the equipment in both the nuclear and non-nuclear parts.

    "We verify the even distribution of power in the reactor, and we also closely monitor the turbine set, where hundredths of millimeters decide at its operation. The first days will show us whether it will be necessary to tune the settings of the turbine generator,"

    said Jan Kruml, Director of the NPP Temelín.

    The work around the generator, the equipment where electricity is directly produced, was highly demanding. "We changed the generator shield and also its rotor. Recently, we have a checked rotor in the machine, which has previously served as a backup. We do this replacement regularly every few years," added Jan Kruml.

    During the outage, technicians exchanged forty-two of the 163 fuel assemblies, checked safety systems, or conducted a six dozen investment actions.Including the external suppliers, around a thousand people participated in the outage works.

    "We plan and coordinate the outages of our six nuclear units so that there is minimal concurrence. From Temelín, the work is now moving smoothly to the shutdown of the fourth Unit in Dukovany, which began at the end of last week,"

    stated Bohdan Zronek, member of the Board of Directors of CEZ and Director of the Nuclear Energy Division.

    Another outage awaits Temelín in the second half of July. The technicians try to replace the fuel assemblies in the largest Czech Units in a period of lower consumption and higher production from renewable sources.

    Marek Sviták , mluvcí CEZ, Jaderná elektrárna Temelín

    Disclaimer

    CEZ a.s. published this content on 09 June 2022 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 09 June 2022 09:50:39 UTC.

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