Woodward 8516-180 TG611-13 Mechanical Hydraulic Governor

Woodward 8516-180 TG611-13 Mechanical Hydraulic Governor

The Woodward 8516-180 TG611-13, also cataloged as the TG-13 mechanical hydraulic governor, operates as a dedicated hardware component for speed and load regulation within turbine and engine control systems.

Hardware Specifications

V/Hz and Field-Oriented Vector Control

Although primarily mechanical-hydraulic, the TG611-13 governor integrates with actuator systems where turbine or engine drive loops may be complemented by electronic V/Hz or vector control schemes. This ensures:

• Actuator loop feedback response stability under varying load conditions.
• Harmonic distortion suppression when interfaced with electronic excitation or drive systems.
• Thermal dissipation profiles maintained through hydraulic fluid circulation and governor body mass.

Frequently Asked Questions (FAQ)

Q: Can the TG611-13 governor be hot-swapped during turbine operation? A: No. Mechanical hydraulic governors require full shutdown and depressurization before removal or replacement to avoid uncontrolled speed excursions.

Q: How is the speed setting adjusted? A: Speed is set via a screw-type mechanism. Adjustment must be performed with calibrated tools to ensure precise RPM control within the 4000 RPM limit.

Q: What safety feature is integrated? A: The unit includes over temperature detection (OTD) to prevent mechanical seizure or hydraulic fluid degradation under excessive thermal conditions.

Field Installation Guidelines

• Mount governor securely to turbine or engine frame using manufacturer-specified bolt torque.
• Ensure hydraulic lines are free of air pockets before commissioning.
• Maintain clearance for screw-type speed adjustment access.
• Verify clockwise rotation alignment with driven shaft prior to coupling.
• For ATEX environments, confirm grounding and sealing of hydraulic connections to prevent ignition risks.