OKB “GIDROPRESS” takes part in service life extension of nuclear power unit in Bulgaria.
Specialists of OKB “GIDROPRESS” and JSC “Rusatom Service” took part in a working meeting which took place at the “Kozloduy” NPP site since 10 till 15 December 2017. The meeting was held in the framework of activity on service life extension of “Kozloduy” NPP Unit 6 up to 60 years.
The issue of discussions at the meeting was the first version of strength calculation. About 40 calculations were discussed. The meeting participants took a decision to take the discussions results into consideration in the final version of the strength calculations.
At the “Kozloduy” NPP Unit 6 they use a reactor plant with VVER-1000 of well-proved V-320 commercial design. The Unit was commissioned in 1991. Based on this design 24 power units are constructed and operated in Russia (Balakovo, Kalinin and Rostov NPPs) and abroad (“Kozloduy” NPP in Bulgaria, “Temelin” NPP in Czechia, “Zaporozhy”, “Rovno”, “Khmelnitski”, South Ukraine NPPs in Ukraine).
The first Unit with reactor plant of V-320 design was commissioned at “Zaporozhye” NPP in December 1984. In all subsequent designs conceptual solutions of V-320 design were used.