Kudankulam first reactor to resume power generation soon

August 23, 2017
Special Correspondent-The Hindu

As the second scheduled fuel outage in the first reactor of Kudankulam Nuclear Power Project (KKNPP) that commenced on April 13 has been completed, Atomic Energy Regulatory Board (AERB) has given permission for operating the reactor again for power generation.

Subsequently, power generation in the reactor was expected to cross significant level before this week-end, sources in the KKNPP said.

Of the 163 enriched uranium fuel assemblies in the 1,000 MW VVER (water-cooled water-moderated) rector – each measuring 4.57 metres and weighing about 705 kg – 50 spent fuel assemblies were removed during the maintenance and replaced with fresh bundles.

The 65-day-long first fuel outage of the first reactor commenced on June 24, 2015. Though the exercise took more time than expected as it was the first experience with a 1,000 MW Russian reactor for KKNPP engineers, the maintenance of the reactor was successfully completed, officials said.

The KKNPP administration, before the start of the second fuel outage, had announced that the removal of 33% of the spent fuel and loading of fresh enriched uranium bundles into the reactor core would be completed within 65 days even as the exercise began on April 13. However, the process has consumed more than 133 days.

KKNPP Site Director S.V. Jinna told The Hindu that the reactor was ready for criticality after the scheduled refuelling outage. “The AERB, after inspecting every vital parameter of the reactor, has given clearance for resuming power generation in the first reactor, which will attain criticality on Thursday. Within a week, it will get synchronised with the southern grid,” he said

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