We meet international safety standards in automated solutions for nuclear power generation.

We cooperate with national institutions (the State Office for Nuclear Safety). We create standard and innovative solutions for the implementation of control and information systems and significantly contribute to general nuclear power plant safety.

SGIU-M – system of group and individual operation control mechanisms for nuclear reactor VVER 1000

System characteristics:

• Performs all functions to secure all basic operating modes of the reactor
• Operates linear step motors of all safety regulation rods (group/individual control, drive control output section)
• Powers and protects linear step / synchronized motors of fuel rod drives
• Indicates safety regulation rods position, data transmission to the control room
• Includes a two-level operation diagnostic tool for continuous equipment status monitoring
• The most important parts of the system are triple channel redundant design

RRCS – group / individual regulation mechanism control system for nuclear reactor VVER 440

System characteristics:

• Performs all functions to secure all basic operating modes of the reactor
• It controls synchronous reactive motors of all regulation rod actuators (both group and individual control, power part for actuators control)
• It provides measuring of regulation rods positions, transfer and display of data in the main control room and the emergency control room)
• It incorporates two-level operational diagnostics for continual monitoring of the equipment status
• Operationally, the most significant system parts consist of a three-channel redundant design
• It supplies and protects step/ synchronous motors of fuel assembly actuators

SGPS – the protection system of steam generators designed for large changes limitation of feed water levels in steam generator

System features:

The basic function – to maintain the middle water level at the nominal level to reduce the risk of:

• Reactor power reduction by the reactor limitation system
• Thermal stress of steam generations after feed water level lowering
• Shut down of both turbines after feed water level rise

PCS and In-Core:

a technology information system that is the basic part of an automated control system of nuclear power plant technology A part of the PCS technology information system is the In-Core system of in-core temperature instrumentation

System features:

• Measuring and processing signals from analogue, discrete and initiative (change initializing) transducers
• Calculation of technical and economical indicators of a nuclear power unit
• Display of technological information with signalling the limit violation of technology values of selected parameters
• Operational and long-term archives of selected significant technological parameters
• Unification of various MMI means of the technology information system new optimised display tubes, improved availability of technological data in control rooms
• Monitoring conditions of M1 safety systems and the SGPS system
• PCS receives 10.000 technological and diagnostics signals with one-second frequency (measuring technological data from primary and secondary nuclear power plant parts, including special In-Core measurements)
• Implementation of new functions on the Safety Parameters Display (SPDS) (System), processing alarms, autonomous In-Core calculations (independent of the SCORPIO system)
• Advanced monitoring of a reactor core by means of the SCORPIO system, data from PCS Implementation of auto-diagnostic functions for continual monitoring of equipment status and failures detection of this equipment
• Reduction of transducer numbers of monitored/ controlled parameters by means of transducers shared by multiple systems

RVLIS - Reactor Vessel Level Instrumentation System

System features:

• Monitoring water level inside the TNR using level assemblies

• Measurements carried out by KNI-LM Assemblies manufactured by ŠKODA JS
  (based on original KNI Assemblies)‏

• Diagnostics
• Data transfer to parent systems

• Calibration while circuits being plugged in

Diagnostics of a secondary part

System features:

• “MDS SO – Monitoring and diagnostics system of the secondary part” – forms the diagnostics of the secondary part.
• MDS SO monitors and processes continually the behaviour of secondary part components and provides the plant operator with detailed information about the current status of the technological equipment, both from the point of view of momentary measuring and the time development of an event.
• Output information from MDS SO has supporting character when the plant operator decides to implement interferences into block operation from the point of view of the operation safety or block operation economy.
• Output information also helps the plant operator to plan repairs of the technological equipment based on its current status.

Main goals of MDS SO:

• To record changes in technological behaviour that can signalize the beginning of the development of a failure.
• To record events immediately and transient performances continuously during the course of operation that influence the lifetime use.
• To evaluate a slow change (function deterioration) of technology caused by operational wear-out.

Common part (auxiliary facilities)

System features:

In nuclear power plants, apart from the nuclear part (primary and secondary part) there is also the non-nuclear part, so-called common part (auxiliary facilities).

Controlled technologies of auxiliary facilities are formed by:

• auxiliary gas boiler room
• main interchange station
• heating, ventilation and air conditioning
• technology with the use of radiation check
• chemical water treatment
• Control and information systems of auxiliary facilities are implemented with systems utilized in fossil burning power plants

OUR APPLICATIONS:

In the Czech Republic:

• Dukovany NPP
• Temelín NPP
• Dukovany NPP
• Temelín NPP

Abroad:

• Zaporozskaya NPP, Ukraine
• South Ukraine NPP, Ukraine
• Chmelnickaya NPP, Ukraine
• Rovenskaya NPP, Ukraine
• Mochovce NPP, Slovakia
• Jaslovske Bohunice NPP, Slovakia