Woodward 9907-573 is a high-performance electronic speed and load sharing controller belonging to Woodward 2301A series, specially designed for diesel/gas engines, gas turbines and steam turbine-driven generator setsWoodward. As the core prime mover regulation component, the Woodward 9907-573 supports both isochronous constant-speed control and droop load distribution modes, accurately adjusting fuel actuator output to stabilize generator frequency and realize balanced load sharing during parallel unit operation. With built-in multi-channel signal acquisition, fault monitoring and industrial anti-interference circuits, the Woodward 9907-573 ensures stable grid synchronization and overload protection, widely deployed in on-site power generation and heavy-duty prime mover control systems with high reliability requirements.

Core Product Specifications

• Brand: Woodward
• Model: 9907-573
• Availability: In Stock
• Delivery Time: Within 3 working days after payment confirmation
• Guarantee: 12 months warranty
• Condition: Brand New Original
• Input/Output: Speed sensor frequency input; proportional actuator drive output; multi-channel digital alarm/shutdown relay outputs; analog load signal input for parallel load sharing
• Operating Temperature: -40°C to +85°C, adaptable to harsh power house and engine room environments
• Size/Weight: Integrated metal sheet chassis with terminal block layout, compact panel mounting design for cabinet installation
• Communication: Compatible with Woodward LinkNet and Modbus RTU serial interface, supports parameter configuration and real-time data upload to upper monitoring HMI
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Key Features & Advantages

1. Dual-Mode Speed & Load Sharing Regulation

   Supports switchable isochronous and droop control logic. Isochronous mode maintains fixed generator speed for single unit or isolated bus parallel operation; droop mode realizes automatic power balance for multiple generators connected to public infinite grid, effectively avoiding overload and frequency fluctuation risks.

2. Wide Range Adjustable Speed Response

   Four optional frequency speed ranges (500–1500Hz / 1000–3000Hz / 2000–6000Hz / 4000–12000Hz) via internal switches, compatible with all mainstream turbine and engine speed sensors, flexible matching for various generator prime movers.

3. Complete Built-In Safety Protection Logic

   Integrates overspeed detection, actuator fault monitoring and abnormal load alarm functions. It outputs relay shutdown signals once critical faults occur to cut fuel supply instantly, preventing generator over-speed damage and unplanned equipment downtime.