The 9907-175 (Model: 9907-175) is a specialized 2301D-ST digital control module designed for the precise speed governing and load sharing of small steam turbines. Operating as a microprocessor-based system, the 9907-175 (Part Number: 9907-175) is engineered to manage single-valve steam turbines driving generators, compressors, or pumps in high-demand industrial sectors such as oil and gas and power generation. It replaces legacy analog systems with advanced digital logic, providing a stable platform for both isochronous and droop speed control.
This variant is specifically configured for digital speed control architectures that require integrated load-sharing capabilities across multiple units. The 9907-175 (Model: 9907-175) excels in automating startup and shutdown sequences, protecting the turbine from mechanical stress while ensuring optimized power distribution. Its rugged construction and high-fidelity signal processing make it a reliable choice for mission-critical applications where turbine stability and system protection are paramount.
The 9907-175 (Model: 9907-175) provides a robust digital interface for steam turbine management and parallel operation.
| Feature | Details |
| Manufacturer | Woodward |
| Model Number | 9907-175 |
| Series | 2301D-ST (Steam Turbine Specialized) |
| Product Type | Digital Load Sharing and Speed Control |
| Input Power | 18–32 VDC (Nominal 24 VDC) |
| Functionality | Isochronous and Droop Load Sharing |
| Processor | 32-Bit Microprocessor-based |
| Memory Capacity | 8–16 MB Flash / 4–8 MB RAM |
| Speed Sensing | Magnetic Pickup (MPU) or Proximity Probe |
| Control Logic | Automated Startup, Shutdown, and Protection |
| Actuator Compatibility | Proportional Actuators (Non-PWM variant) |
| Operating Temperature | –40°C to +70°C |
| Housing | Industrial Aluminum Chassis |
| Weight | 1.85 kg (4.08 lbs) |
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