[en] Adjustment process of the automatic pressure regulation system in the first circuit of the first power unit at Zaporozhe NPP is described. The pressurizer is the main element of the system, in which saturation temperature of 346 deg C is maintained under operation pressure of 160 kg/cm2. Water temperature in the pressurizer is maintained at the required level by thermal electric heaters. Pressure deviations caused by thermal change in the coolant volume are compensated by heating regulation and jetting of a cold coolant in the pressurizer
Original Title
Opyt naladki sistemy avtomaticheskogo regulirovaniya davleniya v 1 konture serijnogo ehnergobloka s reaktorom VVEhR-1000