Why these two new sensors at two Nuclear power plants in Kudankulam

Indian atomic power operator, Nuclear Power Corporation of India Ltd (NPCIL) will install new sensors supplied by Russia’s integrated nuclear power major Rosatom at its two running reactors in Tamil Nadu’s Kudankulam.
According to Rosatom, an agreement has been signed with the NPCIL to supply thermocouples for four power units in Kudankulam.
The new sensors designed for thermal control of nuclear power plant process equipment will replace the old ones in the internal reactor control systems of the Units 1 and 2 in Kudankulam.
High-accuracy resistance thermocouples are a critical element of the in-reactor control system, and their stable functioning ensures safe operation of nuclear reactor equipment.