Belarus VVER--1200 Begins Final Tests

The pilot operation stage at the Belarus NPP unit 1 of III+Gen with VVER-1200 reactor technology began Tuesday, December 22, Russian nuclear giant Rosatom announced. This stage is the final testing stage for a reactor which, in this case, is a first for Belarus. It is also the first VVER-1200 design to be built outside of Russia.
Belarus NPPThe pilot operation stage involves a gradual ascension to full power. A permit to proceed to this stage was issued by the Board of the Ministry for Emergency Situations of the Republic of Belarus.
According to Mr. Vitaliy Polyanin, the Vice-President and Belarus NPP Construction Director of ASE EC JSC, “pilot operation is the final longest testing of the power unit prior to its commissioning. Specialists are to gradually perform a wide range of equipment tests and inspections at the reactor plant power ranging from 75% up to 100%, including dynamic tests with forced shutdown of the various main equipment. Only upon verification of actual parameters and characteristics of the systems and equipment operation for conformity with the design values, the power unit will be put into commercial operation. We are expecting it to be done in the first quarter of 2021”.
Start-up operations at Belarus NPP power unit 1 started on August 7, 2020, when the first fresh fuel assemblies were loaded into the reactor core. On October 11, 2020 the reactor was then brought to the minimum controlled power level (less than 1% of the rated power).
On November 3, 2020 the power unit has been connected to the unified power grid of the Republic of Belarus.

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