Leningrad 1, the oldest RBMK reactor reconnected to the grid

 World Nuclear News stated that  Leningrad 1, the oldest operating RBMK unit, has been reconnected to the grid after the completion of work to resolve deformation of its graphite moderator.

This 38 year old reactorof 915 MW capacity  has been in the news for some time

Unit 4 of the Chernobyl reactor  which got severely damaged in 1986 was an RBMK reactor. These reactors use graphite as moderator. After the accident at the Chernobyl reactor, Russians have modified many features of the surviving fleet to enhance their safety. The fate of Leningrad 1 was under speculation for the past few months. Please see the following link.


Currently, Russia operates  11 RBMKs. WNN  noted that four first-generation units, Leningrad 1 and 2 and Kursk 1 and 2, have been operating since the 1970s. Leningrad 3 and 4, Kursk 3 and 4 and Smolensk 1 and 2 are second-generation units and all started up in the 1980s. Smolensk unit 3, which started up in 1990, was completed to third-generation standards.

“The 18-month project to restore the moderator included research, experimental and operational phases, including the development of specially designed machines and monitoring systems” WNN added.

WNN  stated that Similar work will be carried out  at the remaining RBMKs.

About ksparthasarathy

I am a former Secretary of the Atomic Energy Regulatory Board. I am a former Raja Ramanna Fellow in the Department of Atomic Energy. Free lance journalism is my hobby
This entry was posted in Uncategorized and tagged , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s