Standby diesel generator station automatic control system (SDGS ACS)
SDGS ACS is one of the main parts of emergency power supply systems of all channels of the NPP power unit’s safety system.
SDGS ACS together with other adjacent systems assures control of startup, connection to a network and power operation of a diesel-generator unit (DGU), control of excitation and protection of a generator, control of auxiliary equipment.
Main functions:
- automatic maintenance in readiness and startup of DGU on reception of commands from the safety control system;
- automatic, automated, and manual control of DGU startup/stop from controls;
- automatic maintenance of DGU power operation;
- emergency or normal stop of DGU on actuation of protections;
- control of equipment of a compressor plant and an air dryer package;
- continuous automatic archiving, warning, displaying, and recording of technological and electrical parameters, events, and states during operation of SDGS ACS;
- automatic emergency and preliminary alarm with generation of generalized signals on display panels of MCR, BCR;
- transmission to unit’s IVS of data on values of technological parameters, modes of operation of SDGS ACS, state of protections, blocking.
System advantages:
Redundancy of equipment
Implementation of hardware and software for instrumentation and control equipment of SDGS ACS
Monitoring of electrical and technological parameters of DGU,
Ergonomic and user-friendly operator interface.
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.
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.
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.