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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...
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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.
| 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 |
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.
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.
