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Main Equipment for Unit-3 Of Kudankulam Nuclear Power Plant Delivered

Power News - Published on Tue, 20 Aug 2019

Image Source: Kudankulam
The supply of the main equipment for the third unit of the Kudankulam Nuclear Power Plant in Tamil Nadu (India) was completed. Mr Andrey Lebedev, Vice-President for projects in India of ASE, Russia`s Rosatom State Atomic Energy Corporation Engineering Division, said that all main equipment items located within the red line of the reactor pit installation have been supplied.
Rosatom State Corporation is main equipment suppliers and technical consultants for the Kudankulam Nuclear Power Plant project.

The shipment consisted of the molten core catcher, embedded parts of the reactor pit, dry protection, heat-insulation of the cylindrical shell/barrel, truss buckstay, reactor vessel. These are part of the enhanced safety features in VVER-1000 reactors. A thrust truss and devices for neutron flux monitoring chambers allocation are expected to be delivered by the next shipload.
A core melt localization device or a “core catcher,” is one of the most important passive safety systems of modern nuclear power plants of Russian design. CMLD is installed at the bottom of the plants’s protective shell. It is designed to localize and cool the molten core material in case of a hypothetical accident that could lead to damage to the core. The “core catcher” allows the integrity of the protective shell to be preserved and thus excludes radioactive emission in the environment, even if the hypothetical accident is serious.
The passive safety systems are capable of functioning even in the event of a complete loss of power supply. They can provide full safety without the active systems and an operator. For example, the passive heat removal system (PHRS) ensures long-term heat removal from the reactor core section if all the other power supply sources fail. If necessary, the system can switch on without external interference and function under the influence of purely natural factors.

Mr Andrey Lebedev said that “Taking into account that four steam generators, a pressurizer, main coolant pipelines and a bubbler were delivered earlier, ASE has mostly completed the procurement of the containment equipment for the third unit to ensure uninterruptible and continuous operations for the reactor plant construction which is on the critical path of the project.”

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Posted By : Ratan Singh on Tue, 20 Aug 2019
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