The VVER-TOI or WWER-TOI (Russian: Водо-водяной энергетический реактор типовой оптимизированный информатизированный, romanized: Vodo-Vodyanoi Energetichesky Reactor Tipovoi Optimizirovanniy Informatizirovanniy, lit.
The most important impacts, which parameters affected significantly technical solutions on VVER-TOI project are listed below: Nuclear power plant systems and components as a part of the base - case project are developed by reference to the following natural disasters and design human-induced impacts: Modern Nuclear power plants are characterized by the unprecedented low risk of ionizing radiation propagation and radionuclide emission to environment.
Combination of passive and active safety systems provided for in the VVER-TOI project ensures that core will not be destroyed for not less than 72 hours from the moment of severe accident happening in case of any possible scenario.
The corresponding technical solutions guarantee that reactor plant will be transferred to safe conditions at any combination of initial events (natural and human-induced) triggering to loss of all the electric power sources.
[5] The VVER-TOI reactor pressure vessel has fewer welds than the VVER-1200, all out of the central area, and a more symmetric arrangement of coolant nozzles.
The complex practical use includes the following: At the present moment there are no analogous technical implementations in Russia while designing complicated technological objects.