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Woodward 9907-517

Product Name:​ 2301A Series Electronic Load Sharing and Speed Control.
Product Introduction:​ The 9907-517 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 90–150 Vdc or 85–132 Vac specifications.
  • Control Functions: Simultaneously implements both speed control and load sharing.
  • Speed Ranges (switch-selectable): 500–1500 Hz, 1000–3000 Hz, 2000–6000 Hz (factory default), 4000–12000 Hz.
  • 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: Simultaneously implements 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.
Application Scenarios:​ Load sharing and speed control for diesel generators, gasoline generators, steam turbine power generation, and gas turbine power generation.
Working Principle:​ By monitoring the output power of each generator and the speed signal of the prime mover, the electronic controller automatically adjusts the fuel supply of each unit, achieving balanced load distribution during parallel operation.

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