Kudankulam unit 3 reactor building dome installed

01 December 2022

​The lower part and the top part of the 281-tonne dome for the reactor building at unit 3 of India’s Kudankulam nuclear power plant was preassembled on the ground before being lifted 62 metres and installed in the design position.

Preassembly helped cut construction time (Image: Rosatom)

The lifting, by a Liebherr LR 11350 heavy crane, took place on Wednesday in an operation that took about one hour and fifteen minutes.

Rosatom added that preassembling on the ground, with the installation of one structure instead of two, "made it possible to reduce the duration of construction and installation works at the reactor building by almost one month".

Andrey Lebelev, vice president of ASE JSC for Projects in India, said: "We share our experience and our technologies with our partners, we perform the necessary training and fulfill all the obligations. This allows us to be confident in the quality of our products and services and maintain the trust-based relations."

Kudankulam is a long-term strategic project between India and Russia that began with an intergovernmental agreement in 1988. Nuclear Power Corporation of India Limited is building four new VVER-1000 units of 1000 MWe each in Kudankulam, which is in Tamil Nadu in southern India - units 3, 4, 5 and 6. The expected completion dates for Kudankulam 3 and 4 are in 2023. Kudankulam 1 and 2 entered commercial operation in December 2014 and April 2017, respectively.

In July, Rosatom said that installing equipment at Kudankulam unit 3 using the "open top" technique - while the dome was open - had saved between five and seven months of construction time.

Researched and written by World Nuclear News