CHENNAI: Russian integrated nuclear energy major Rosatom announced on Monday that it has completed the welding of the heads of the steam generators of Unit 5 of the Kudankulam nuclear power plant project.
According to Rosatom, preliminary support components and 11,000 heat exchange coils have been completed inside the steam generator.
Automatic welding of the heads is carried out with heating at a temperature of 120-250 degrees for seven days. Welding the two welds required 660 kg of wire and 935 kg of flux.
In addition, specialists will perform local heat treatment of welds and a full range of technical inspections, including hydraulic testing and eddy current testing of heat exchange tubes, Rosatom said.
The steam generator is a heat exchange equipment, part of the reactor installation and belongs to the elements of the first class of safety. The equipment is approximately 14 meters long, over 4 meters in diameter and weighs 350 tonnes. The equipment of one of the four steam generators of the nuclear power plant.
India’s nuclear power plant operator Nuclear Power Corporation of India Ltd (NPCIL) has two 1,000 MW plants (units 1 and 2) at Kudankulam, while four more (units 3, 4, 5 and 6) are under construction .
All six units are built with Russian technology and equipment provided by Rosatom.