Steam Turbine Controls

We have completed many control system upgrade projects in steam turbine plants. These plants include the following turbines:

  • Boiler feed pump steam turbines
  • CCGT steam turbines, train control
  • Base load steam turbines upto 600MW

The scope of each project varies depending upon the size of the turbine and the requirements of the client, however, they may typically include:

  • Removal of hydraulic governor systems.
  • Fitting hydraulic actuators for steam valves.
  • Fitting magnetic speed pick-ups.

The focus of all the systems installed is on improving operational reliability and reducing maintenance costs. This is achieved by removing, where possible, mechanical control equipment and replacing it with modern state of the art microprocessor-based controls.

The systems are controlled and monitored by screen-based HMI/SCADA systems that provide historical and real-time trending, greatly increasing the visibility for operators and engineers.

Governor Systems

TC41-SG Governor System

A low cost governing system for 1MW to 100MW steam turbines

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Boiler feed pump control

Speed governor control systems for steam driven boiler feed pumps.

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Auxilliary Controls

These systems have been traditionally controlled by stand-alone controllers often utilising electro-mechanical relay-based systems. These controllers can be replaced by a PLC-based controller which has the following advantages:

  • Improved reliability.
  • Improved fault diagnoses facilities.
  • Can be connected easily to a plant wide DCS system.

Water Treamment Plant Control

We have completed a number of control system upgrade projects on steam turbine water treatment plants with no downtime during installation.

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Steam Valve Actuation

We offer a solution to Steam turbine valve operation using electric motor servo valves. This solution can be offered as a pilot acting or direct acting solution.

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