In-core monitoring system

The in-core monitoring system assures monitoring of neutron-physical and thermohydraulic parameters of a reactor facility’s (RF) primary circuit and information support to an operator.

The latest modification (SVRK-M2) performs diversified calculations of neutron-physical parameters of the core using two software packages: the National Calculation Complex “lmCore” (SRPA “Impulse”) and “Beacon-TSM” (Westinghouse).

Functions:

monitoring of “mixed” loads with fuel of any suppliers including loads with fuel rod assembly of a different fuel rod height;
monitoring of loads with fuel profiled in axial and radial manners;
possibility to directly monitor linear power density at the fuel element level;
electronic album of neutron-physical characteristics based on predictive functions of the system;
informational support for an operator in power maneuvering modes.

System advantages:

Possibility to monitor neutron-physical and thermohydraulic parameters

of a core in stationary and transient modes, including modes of power unit operation at increased power;

Possibility to monitor cores

with TVS-WR fuel manufactured by Westinghouse, including cores with "mixed" loads (modification of SVRK-M2 based on the complex “ImCore”);

Informational support for an operator

to operate a power unit in power maneuvering modes;

Possibility of implementation

of new fuel cycles;

High degree of approbation of technical solutions

due to a long-term experience of operation at NPP power units.

Other solutions for nuclear power plants

Process information system (unit’s upper level)

Central control system for the NPP power unit which provides visualization, registration and documentation of technological process parameters in all operating modes of the power unit, control of critical functions and basic safety parameters.

Normal operation control systems for reactor and turbine divisions

The systems are designed to control normal operation control of NPP units’ technological systems.

System to monitor boron-10 isotope (boric acid) concentration

The main function of the boron concentration monitoring system based on neutron solution analyzers NAR-I – automatic continuous measurement of boron-10 (boric acid) concentration in coolant at NPP power units with WWER-type reactors.

Safety control system technological

The system is designed to initiate actuation and control of the power units’ safety systems.

Neutron flux monitoring system

The system is a part of a control and protection system (SUZ) of NPP power units.

Complex diagnostics system for equipment of a reactor facility’s primary circuit

It provides complex technical diagnostics of the primary circuit equipment by analyzing diagnostic information received from power unit monitoring and control systems, local diagnostic systems and its own databases.