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The GCN building, housing the main circulating pumps, the MCPs. The main circulating pumps were intended to maintain circulation of coolant (water) through the reactor. These pumps are some of the most important components of any nuclear power plant. The pumps are huge, about 4 meters tall, and were intended to work in heavy-load conditions, pumping up to 800 m3 per hour of radioactive water, with temperatures ranging up to 280оС. In total, each RBMK reactor would have eight main circulating pumps, housed in two buildings with four pumps each.Today, all eight of the main circulating pumps of the 5th unit have been dismantled. The bottom right photo shows the central shaft of the main circulating pump, together with the basic bearing, right before being buried at the PZRO "Burjakovka", a radioactive waste disposal site.
3. Turbine hall. This building housed two turbogenerators, with a capacity of 500 megawatt each.They used type К-500-65/3000 turbines and type ТVV-500-2 generators.
The turbines' condenser building. In the foreground of the center photo sits the delivery device, in the background the condenser, a K-10120.
2. The trench dug our for the 6th unit turbine hall foundations. The most beautiful and photogenic place in the third stage. The trench has been filled with water, reinforced with concrete columns, complete with huge, rusty BK-1000 cranes, and towering over these is the 70 meter high building the of reactor house.