Retrofitting steam turbines with modern peak 200 control platforms

Repeatable start-ups & minimized process upsets with precision speed control

Upgrading your turbine from an old OEM mechanical or hydro-mechanical governor to the latest technology in digital speed control will enhance your turbomachinery performance. Once you upgrade your old mechanical governor with digital control, you will find that the turbine speed can easily be controlled with a few rpm range. This ensures stable operation throughout all operational phases, i.e. during unit start up, shutdown, parallel operation, Island mode, etc.

Shorter turnarounds with pre-designed retrofit kits already assembled & calibrated

Collaborating with you at the proposal stage provides a chance to review the various actuation options available, such as low thrust small actuator retrofitted to existing hydraulic pilot mechanisms all the way to a high thrust large actuator retrofitted to the main steam valve rack. Speed measurement kits are also evaluated and selection of passive or active speed sensors is determined, as well as the quantity required. Once a design is selected, MADSEN visits the site to collect data and dimensional measurements of the turbomachinery.
At turnaround, a MADSEN mechanical engineer can be dispatched to site if required for installation supervision of the mechanical retrofit.