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Following the accident at Chernobyl, all remaining RBMK reactors were retrofitted with a number of updates for safety. The largest of these updates fixed the RBMK control rod design. The control rods have 4.5-metre (14 ft 9 in) graphite displacers, which prevent coolant water from entering the space vacated as the rods are withdrawn.
A bigger problem was the design of the RBMK control rods, each of which had a graphite neutron moderator section attached to its end to boost reactor output by displacing water when the control rod section had been fully withdrawn from the reactor. That is, when a control rod was at maximum extraction, a neutron-moderating graphite extension ...
The plant has four nuclear reactors of the RBMK-1000 type, Units 1 and 2 of which are first generation units similar to that of Kursk and Chernobyl units 1 and 2, while the units 3 and 4 are second generation similar to Chernobyl 3 and 4. Each unit has a separate reactor building but the turbine hall is shared between 2 reactors. [2]
The Ignalina Nuclear Power Plant contained two Soviet-designed RBMK-1500 water-cooled graphite-moderated channel-type power reactors. After the Chernobyl disaster of April 1986, the reactor was de-rated to 1,360 MW. Each unit of the power plant was equipped with two K-750-65/3000 turbines with 800 MW generators built by the Kharkiv turbine ...
The first Kursk RBMK reactor shut down in December 2021, while the first Kursk II unit was expected to be commissioned by the end of 2022, and the second unit in 2023. In January 2023, the 235-tonne steel dome was set on the unit 1 containment building, where it will serve as a key barrier between the reactor and the environment. This lift ...
The three sites (Kursk I, Leningrad I, Smolensk I) which all consist of 3+ RBMK reactors are going to be replaced with VVER-1200 units at Leningrad and VVER-TOI units at Smolensk (2 units are already in pre-construction phase with planned completion in 2033 - each rated at 1250 MW per unit - out of a total of 4 units announced) [12] and Kursk ...
Two of the RBMK-1000 reactors are in shutdown and two are fully operational. Construction of Kursk-2, essentially new reactors of the VVER-TOI type, was begun in 2018. The two reactors are not ...
Automatic control is an integral part of the MKER design. Located between the reactor building and the turbine hall, the control room oversees the automatic control system and various plant safety systems. It occupies a protected central location, minimizing possibility of damage or compromise. [8]