BN-600 reactor

The reactor system is housed in a concrete rectilinear building and provided with filtration and gas containment.

In the first 24 years of operations, there have been 12 water-into-sodium leaks[2] in the steam generators, routinely addressed by isolating the faulty module with gate valves.

On-power refueling equipment allows for charging the core with fresh fuel assemblies, repositioning and turning the fuel assemblies within the reactor, and changing control and scram system elements remotely.

Each has a primary sodium pump, two intermediate heat exchangers, a secondary sodium pump with an expansion tank located upstream, and an emergency pressure discharge tank.

The operation of the reactor is an international study in progress; Russia, France, Japan, and the United Kingdom currently participate.

Main building of Beloyarsk Nuclear Power Station as seen from the Beloyarskoye Reservoir near Zarechny, Sverdlovsk Oblast, Russia. Beloyarsk has the largest fast breeder reactor , the ( BN-600 ), at 600 MW it is the second-most powerful breeder in the world. Construction of a second breeder reactor, the BN-800 reactor , was completed in 2016.
A cutaway model of the reactor. The core, that is the nuclear fuel at the heart of the reactor has dimensions of 2 meters in height by 0.75 meters in diameter, similar to the BN-800 reactor . [ 1 ]