- Application Notes
- Product Specification
- Software Manual
- Technical Manual
The TG611-17 die-cast aluminum mechanical-hydraulic speed droop governor controls API611 steam turbines driving pumps, compressors, or generators where isochronous (constant-speed) operations is not required. The governor controls turbine speed by sensing turbine rotor speed via the input drive shaft, comparing this speed to an internal speed set point, then using a rotary output terminal shaft connected to the turbine’s governor valve control turbine inlet steam flow.
This self-contained governor utilizes an integrated driveshaft-driven ball head assembly to sense turbine speed, and an integrated driveshaft-driven oil pump to create the necessary output force to move/control the turbine’s governor valve. The TG611-17 governor includes a special Overspeed Test Device (OSTD), allowing controlled and safe turbine overspeed trip testing initiated from any speed setting in a safe matter.
Same as: A8516-045 plus Integrated Overspeed Test Device
Where isochronous (constant-speed) operation is not required, the TG611-17 drives steam turbines in: