Over Speed Protection for Steam Turbines

ProTech 203
The Woodward ProTech 203 Overspeed Protection System monitors three individual magnetic pickups (MPUs) to provide overspeed protection for steam turbines, gas turbines, or other prime movers, and can operate above 10 000 rpm, where mechanical overspeed devices may become unreliable.

TG611, TG Governor with Overspeed Protection
Directly replaces TG Governors
API 611 Compliant Overspeed Testing

Woodward TG611 governors are mechanical-hydraulic speed-droop governors for controlling small steam turbines. These governors control turbine speed by sensing turbine rotor speed via their input drive shaft, comparing this speed to an internal speed setpoint, then using a rotary output terminal shaft connected to the turbine’s governor valve to control turbine inlet steam flow. This self-contained governor utilizes an integrated drive-shaft-driven ballhead assembly to sense turbine speed, and an integrated drive-shaft-driven oil pump to create the necessary output force to move/control the turbine’s governor valve.

Contact GCS for product specifications and technical manuals