Description
The Woodward 8290-046 is a specialized Governor Controller engineered to facilitate single-phase droop speed control. Operating on a 12V DC power supply, this unit is specifically calibrated for high-speed prime movers, including diesel engines and gas turbines, with a sensing range of 3000 to 6000 Hz. By utilizing droop control, the 8290-046 allows for stable parallel operation by intentionally allowing the engine speed to decrease slightly as the load increases, ensuring harmonious load sharing among multiple generation sets.
Product Specifications
- Operating Mode: Single-phase droop control
- Input Power: 12V DC battery supply
- Speed Sensing Range: 3000 – 6000 Hz
- Target Prime Movers: Diesel engines and gas turbines
- Weight: Approximately 0.95 kg (2.09 lbs)
- Dimensions: 135 mm x 115 mm x 50 mm
- Origin: Primarily manufactured in the United States
Frequently Asked Questions
💡 Why is “droop control” required for this model? Droop control is a fundamental stability mechanism for power systems. By allowing a small, predictable drop in frequency as load increases, it prevents individual governors from “fighting” each other when multiple generators are connected to the same bus, providing inherent system stability.
⚙️ What is the significance of the 3000–6000 Hz frequency range? This range corresponds to the signal generated by the magnetic pickup (MPU) mounted on the engine flywheel. A 3000–6000 Hz range is typical for high-speed industrial engines or gas turbines where precise speed monitoring is critical for turbine blade safety and output quality.
🛠️ Can this be used on a gasoline engine? No, this specific model is restricted to diesel and gas turbine applications. These prime movers have different fuel combustion dynamics and inertia profiles compared to spark-ignited gasoline engines, and the internal control logic of the 8290-046 is tuned specifically for the torque curves of diesel and turbine equipment.
🌐 How is the droop percentage adjusted? Droop adjustment is typically performed on the controller faceplate via an analog potentiometer. This allows the operator to fine-tune the “slope” of the engine’s speed response to ensure that the load is shared accurately with other generators in the network.
Recommended Alternative Woodward Series Models
To support your power generation management systems, the following ten models are frequently utilized within similar droop-governing and industrial prime mover applications:
- Woodward 8290-030
- Woodward 8272-544
- Woodward 8272-545
- Woodward 8273-500
- Woodward 9907-162
- Woodward 9907-825
- Woodward 8256-011
- Woodward 8256-084
- Woodward 8440-1947
- Woodward 5464-672
