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Unit 2 of Belarus NPP has reached minimum controllable power level

Communications Division of ROSATOM Engineering Division, PUBLISHED 29.03.2023

On March 25, the reactor of Power Unit 2 of Belarus NPP (general designer and general contractor is Rosatom State Corporation Engineering Division) was brought to minimum controllable power level. At 19:42 (Moscow time), the neutron flux was registered for the first time, and controlled self-sustained nuclear reactor began.

Achievement of the minimum controllable power level (less than 1% of the rated power) makes it possible to proceed to the final part of tests of the Power Unit physical start-up stage. To confirm compliance with the design and clarify the rated neutron and physical characteristics of the reactor first fuel loading, the specialists will take measurements of the actual state of the core. Reliability of functioning of protections, interlocking and the entire nuclear physical control and nuclear safety systems of the reactor plant will also be checked.

The results of the tests will be submitted to the authorized bodies of the Republic of Belarus for obtaining a permit for the Unit power start-up, after which gradual increase of the power will begin. Simultaneously with the performance of all the necessary physical start-up operations, specialists will continue the planned preparation for the subsequent stages of the start-up works - power start-up and trial operation.

Belarus NPP with two VVER-1200 reactors with a total capacity of 2 400 MW is being built in Ostrovets (the Republic of Belarus). A Russian generation III+ design has been selected for the first NPP in Belarus, which fully complies with the international standards and safety requirements of the International Atomic Energy Agency (IAEA). Power Unit 1 of Belarus NPP, which became the first nuclear facility of the latest III+ generation built abroad using the Russian technologies, was put into commercial operation on June 10, 2021.

Topics: Commissioning, Belarus


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