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Speed Droop Governor WOODWARD 8516-038

Speed Droop Governor WOODWARD 8516-038

The WOODWARD 8516-038, also cataloged as the 8516-038 Speed Droop Governor, operates as a dedicated hardware component for closed-loop prime mover speed regulation and proportional load sharing within engine and...

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SKU: 8516-038
Vendor: Woodward
Category: Speed Droop Governor
Related Series:

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The WOODWARD 8516-038, also cataloged as the 8516-038 Speed Droop Governor, operates as a dedicated hardware component for closed-loop prime mover speed regulation and proportional load sharing within engine and turbine control loops.

Hardware Specifications

Parameter Specification
Model 8516-038
Brand WOODWARD
Origin USA
Weight 2 kg
Dimensions 2.3 x 1.8 x 0.9 cm
Operating Temp -40 to 70 deg C
Power Consumption 24 VDC nominal (18 to 32 VDC operational range)
Control Type Speed Droop Governor
Signal Input Magnetic Pickup Unit (MPU) / Speed Sensing Circuit

Actuator Loop Feedback Response and Thermal Heat Sink Dissipation

The internal control circuitry evaluates speed error relative to the droop setting and drives the actuator output signal to adjust fuel or steam metering valve positions. Integrated dynamic stabilization circuits optimize actuator loop feedback response during sudden electrical load steps, maintaining system stability without hunting. Solid-state output drivers utilize the metal housing for optimal thermal heat sink dissipation profiles during continuous high-current actuator driving cycles.

Frequently Asked Questions

Q: How is the speed droop percentage calibrated across multiple parallel generators?

A: Speed droop is adjusted via the onboard potentio-circuitry, typically set between 3% and 5% to establish proportional real-power load sharing based on generator rating capacity.

Q: What precautions should be taken regarding magnetic pickup input wiring?

A: Speed sensor leads must consist of twisted-shielded pair cable with the shield grounded at the governor chassis end only to prevent common-mode electrical noise interference on the speed control signal.

Field Installation Guidelines

  1. Mount the housing securely to a vertical panel using the designated chassis mounting points to maximize thermal dissipation.
  2. Route magnetic pickup signal lines in a separate shielded conduit away from high-voltage motor or generator stator leads.
  3. Verify that the system DC supply voltage remains within the specified 18 to 32 VDC range before applying input power.
  4. Connect the main ground lug directly to the protective earth grid using a short, low-impedance copper bus strap.
  5. Ensure adequate surrounding air clearance around the enclosure to avoid localized thermal saturation during continuous operation.