ZAT CONTROL SYSTEMS

In the area of classical power generation and heating plant industry we form standard and new solutions for control and information systems for optimising the operation of controlled technologies including the implementation of safety automation elements.
We have been cooperating with both domestic and foreign technology suppliers so that demanding requirements of the contemporary state-of-the-art control systems are taken into account in our supplies.

Process automation:

• We implement functions for control of blocks, non-blocks (auxiliary facilities) and desulphurization

• We control power blocks in the whole operation scale including start-up and shut-down, dynamic transition between stable operation modes and extraordinary failure conditions

• Power blocks control is in accordance with requirements of the Transmission Grid Code

• The control system provides ultimate power change depending on failures of corresponding technological equipment.

• Control interventions are designed so that they enable maximum possible power changes without exceeding the temperature stress in the most critical part of the technological equipment

  • Turbine control with modules

    • Revolutions measuring and evaluation

    • Turbine revolutions control

    • Block control in “Island” mode

    • Power control

    • Primary and secondary control of power

    • Input press control

    • Manual control of control valves positions

    • Control of control valves positions

    • Press and quantity control in steam bleeding

    • Limiting control in steam bleeding

    • Manual control of a steam bleeding flap

    • Positions control of diffusion ring blades (Francis and Kaplan turbine)

     

  • Launch control

    • Launch systems with direct current generator launchers

    • Launch systems with launchers without slip rings

    • Static launch systems

    • Launch systems with alternating current launchers exciters

     

  • Distribution plants control

    • System features:

      • Two-value processing of conditions of all switching elements

      • Failure signalling (for selected signals – 10ms resolution)

      • Blocking conditions implemented on the level of process stations and In-Touch

      • Measuring alternating and direct parameters and P, Q, and cos calculation

      • Balance processing of measured values

      • Evaluation of synchronization conditions

      • Parameterization of protections

      • Transformer cooling control

      • Special SW functions:

        • Transformer HV tension control

        • Choking coil tuning

         

       

     

   

• Turbine control (steam, water)

• Safety automation :

• ZAT Decision Suite

• Burners automation

  • System features:

    • Certified automation for gas, oil,as, oil, and combined burners control – EN298

    • Automatic start and control of one-grade, two-grade or continuously controlled oil, gas or combined (oil-gas) burners with a fan and an ignition system

     

   

• Protection systems

  • System features:

    • Boiler and turbine protections are designed so called Fail-Safe systems two-channel or threechannel in accordance with the ÈSN EN 61508 (SIL3) standard. Turbine revolution measuring is designed to protect three-channelled and for control as two-channelled.

    • Protection system is designed functionally and physically by means of an individual Fail-Safe system (independently of operation control system function)

     

   

• Sequence of Recorder - SOE

  • System features:

    • It records and stores technologically significant events with high-time resolution

    • It enables monitoring as much as 600 binary inputs in one rack of a system

    • It provides time resolution as short as 1 ms with external time synchronization possibility regarding the absolute time

    • Analysis of acquired data by own SW means

    • Independency of control system

    • Data exported to an SQL database

     

   

• SW super-structure of ZAT Control System for operation optimization of power generating plants

  • Efficiency improvement of the entire block

  • Boiler power losses reduction

  • Continual maintenance of gas emissions in the range of current standard values by plant power requirements

  • lowering, particularly by optimal control of condensate cooling system operation

   

• ZAT Decision Suite with modules:

  • Combustion optimization module

  • Module of boiler gas emissions optimization (NOx, CO)

  • Module of turbine operation optimization

  • Module of condensate cooling system operation optimization

  • Module of power plant operation optimization in stationary modes

  • Module of operation optimization in the mode of system services delivery

  • Central module

   

In the area of open cast mining and raw material transport we deliver large portfolio of complex supplier and engineering services as the main supplier of the Automated Control System of Technology Processes Dispatching centres control our supplies of overburden removal and coal mining in open-cast mines and even respective technologies of coal cleaning plants or mine water pumping. We put enormous stress on high technical quality of both our equipment and our workers so that we are always able to meet Your- Client’s, requirements.

• Technology information systems and dispatching centres

• Belt conveyors control

  • System features:

    • Unmanned control

    • Main actuators control and control of stretching actuators with frequency converters

    • Stretching automation

    • Main actuators thermal model

    • Serial communication with ABB protections

    • Serial communication with EDIS – belt connections check

     

   

• Control of steam-navies and steam-paddies

  • System features:

    • Excavators motion control

    • Selected actuators control (lubrication, grater)

    • Programme control of mining (a plane of flat country, frontal and lateral sloping)

    • Serial communication

      • Converters

      • Electrometers

      • ABB protections

      • Electronic Fire-fighting Signalization

      • Bucket chain position

      • WIFI – data transfer into a corporation network

       

     

   

• Throw-off carriages and belt carriages control

  • System features:

    • Transport line starting from the control room

    • Caterpillar carriage control

    • Rotation control

     

   

• Stackers control

  • System features:

    • Excavators motion control

    • Selected actuators control (lubrication)

    • Automatic sectoring

    • Serial communication

      • Converters

      • Electrometers

      • ABB protections

      • Electronic Fire-fighting Signalization

      • WIFI – data transfer to the corporation network

       

     

   

• Stockyard machinery control

  • System features:

    • Stockyard machinery motion control

    • Selected actuators control (lubrication)

    • Automatic coal disposal

    • Serial communication

      • Converters

      • WIFI – data transfer into the corporation network

       

     

   

• Coal cleaning plants and crushing plants control

  • System features:

    • Belt conveyors control including all crushers, separators, flaps, and charging equipment

    • Automatic coal feeding of deep mine bins

    • Programme control of coal feeding of coal stockyard

    • Serial communication

      • Converters

      • Throw-off carriage position over a stockyard

       

     

   

• Control of pumping stations of mining and waste waters

  • System features:

    • Main and feeding pumps control

    • Automatic control of waste waters pumping from water levels

    • Attendance and monitoring system

    • Wireless data transfer

     

   

• System features:

  • Technology facilities control

  • Operational and failure data archiving

  • Heavy machinery energy consumption archiving

  • Evaluation of selected parameter trends

  • Shift reports and automatic logging of belt conveyors provisions

  • Data transfer into production information systems

  • Remote diagnostics

   

In the area of transport we focus on engineering deliveries that form spatially vast and extensive information and control systems with large quantity of signals A number of our systems remote control heavy-current traction equipment of the railway, namely in the West and South Bohemia. Supplies are always tailored for the particular area of use.
Remote control technique for railway tracks and transport routes administration

Remote control technique in facilities of:

• Dispatching centres systems

• Traction transformer houses (TT)

• Switching stations (SPS)

• Railway stations (ŽST)

  • Dispatching centres systems (significant parts of system)

  • Remote control technique in TT, SPS, ŽST facilities

    • Camera systems

    • Power consumption monitoring systems

    • R110kV Switchgears, R27kV distribution systems

    • Traction of the Czech Railway

    • In-house consumption, universal electrical supply

    • Short-circuit sight

    • Camera systems

    • Incorporation of communication with protections into remote control technique

    • Power consumption monitoring systems

   

Thanks to long-term experience, state-of-the art technologies and optimized processes we can help our clients to keep their competitive advantages in the control of any industrial process. We always offer individual solutions with stress on improving effectiveness, quality and safety of production processes. We particularly aim at raw materials deliveries control and control of resources for production, control of production process including individual production technologies or control, storage and expedition management.

We always adapt our choice of a final product to the wishes and needs of a client. Our solutions can be found in the following industrial fields:

• Brick industry

• Ceramic industry

• Food industry

• Chemical industry

• Rubber processing industry

• Paper processing industry

• Administration of theatre operation, TV studios and client centres