Leningrad-II 2 begins pilot operation

19 November 2020

Russian regulator Rostekhnadzor issued a permit for the start of the pilot operation of unit 2 of the Leningrad-II NPP (also known as Leningrad 6), according to nuclear utility Rosenergoatom. Specialists will now begin a phased increase in the reactor power. “Pilot operation is the final and longest test of a power unit before commissioning. It will last about four months,” Rosenergoatom explained.

During this time, the specialists will increase the power of the reactor plant to 40%, 50%, 75%, 90% and 100% and will carry out almost 200 tests of the unit's technological systems and safety systems. "After reaching 100% capacity, completing all the prescribed tests at each power level, flawless and continuous  operation for at least 15 days, the power unit will be shut down to check the equipment and prepare it for commercial operation, after checking by the state commission,"  explained the chief engineer of Leningrad NPP-II Alexander Belyaev .

The first fuel assemblies were loaded into the reactor core in July after which the unit  was brought to the minimum controlled power, and was submitted to a series of tests. The unit was connected to the grid on 22 October. Formal commissioning is scheduled for 2021.

Photo: Ler