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Woodward 9907-661
Product Name: 2301A Series Electronic Load Sharing and Speed Control (9905/9907 product line).
Product Introduction: The 9907-661 belongs to Woodward’s 2301A series of the 9905/9907 product line. This series of controllers is used to control load sharing and speed for generators driven by diesel engines, gasoline engines, steam turbines, or gas turbines.
Detailed content
Technical Specifications:
- Power Supply: Multiple voltage class models are available, including low-voltage models (20–40 Vdc) and high-voltage models (90–150 Vdc or 88–132 Vac).
- Speed Ranges (switch-selectable): 500–1500 Hz, 1000–3000 Hz, 2000–6000 Hz (factory default), 4000–12000 Hz.
- Control Mode: Supports Isochronous mode and Droop mode.
- Actuator Output: 0 to 200 mA, 30 to 45 Ω.
- Operating Temperature: -40 to +85 °C (-40 to +185 °F).
- Load Sharing Accuracy: Within ±5% of rated load with speed settings matched.
- Vibration: 4 Gs, 5 to 500 Hz. Shock: 60 Gs.
- Weight: Approximately 1.8 kg (4 lb).
Functional Features:
- Core function is to simultaneously implement the two major functions of speed control and load sharing.
- Speed control maintains stable speed of the prime mover (engine/turbine).
- Load sharing ensures proportional load sharing when multiple units operate in parallel, avoiding single-unit overload or uneven load distribution.
- The controller is housed in a sheet-metal chassis and consists of a single printed circuit board.
Application Scenarios: Load sharing and speed control for diesel generators, gasoline generators, steam turbine power generation, and gas turbine power generation.
Working Principle: Through an electronic control circuit, it monitors generator output and prime mover speed signals, automatically adjusting the fuel supply of each unit to achieve balanced load distribution during parallel operation.
