Neutron flux control equipment (product's name AKNP-I)

Copyright © 'Severodonetsk Research and Production Association "Impulse"'

AKNP-I designed for work in the systems of power control and emergency protection of reactor "VVER-1000".

This equipment provide:
• Decrease of risk of emergency situation;
• Increase of reliability of action of protection in emergencies;
• Reduction of an idle time of the block in scheduled repairs and reduction of number of emergency stops.

AKNP-I provide functions:
• Calculation and control of main reactor parameters such as power, period and reactivity;
• Formation of discrete signals for the systems of power control and emergency protection of reactor (SCPR) and for automatic control system of technological process (ACSTP);
• Formation of analog signals that proportional power and back proportional to the period for the SCPR and ACSTP systems;
• Representation of the information about meanings of power, period, reactivity and discrete signals to the operators of main control panel in an optical and acoustic kind;
• Continuous registration of the current meanings of power and period;
• Continuous diagnostics of equipment and representation of the received information to the operators of main control panel.

AKNP-I consists of three complete sets of means:
• Two complete sets for SCPR and main control panel (product's name AKNP-APZ);
• One complete set for reserve control panel (product's name AKNP-RShU).

       Each complete set provides the control of a neutron flux in all range of change of density of a neutron flux in an active reactor zone with three independent channels of measurement of a level of density (reactor power) and calculation of speed of change of a neutron flux (reactor period).

       The complex AKNP-I can be in addition completed with a archiving server (SA-AKNP) which is capable to store parameters produced during one year.