Main Circulation Pump Unit for Efficient Thermal Circulation in Nuclear Power Plants (GCNA)

GCNA - vertical centrifugal single-stage pump unit is an integral part of NPP. It is intended for creation of
forced circulation of the coolant in the first circuit of NPP and has an additional function of providing circulation of the coolant on run-out at various accidents with de-energisation of the power unit, which allows smooth exit of the unit to the natural circulation mode.