The Woodward 9907-166 R is a 505E digital governor designed for steam-turbine control applications. The 505E family provides microprocessor-based control of steam turbines and is designed to manage turbine speed, load, and related operating functions. The 9907-166 R version is associated with a 125 VDC power supply configuration and is intended for integration with compatible turbine control and plant systems. It can support applications requiring precise speed and load regulation, extraction or admission control depending on the configured 505E model, and communication with external plant-control equipment. The exact I/O and control configuration should be matched to the installed turbine system before replacement.
| Specification | Details |
|---|---|
| Brand | WOODWARD |
| Model | 9907-166 R |
| Series | 505E |
| Product Name | Digital Steam Turbine Governor |
| Power Supply | 125 VDC |
| Controller Type | Microprocessor-Based Digital Governor |
| Primary Application | Steam Turbine Control |
| Main Functions | Speed / Load Control |
| Control System | 505E Turbine Control |
| Installation | Turbine Control Panel |
| Interface | System-Dependent I/O and Communication |
| Application Areas | Power Generation / Industrial Steam Turbines |
| Condition | New Surplus / Used, depending on inventory |
| Status | Legacy / Maintenance Spare |
FAQ
Q: What is the Woodward 9907-166 R used for?
A: It is a 505E digital governor used to control and regulate compatible steam turbines.
Q: What power supply does the 9907-166 R use?
A: The listed model is the 125 VDC version. Verify the installed system’s DC supply before replacement.
Q: What does the 505E control?
A: The 505E platform is designed for steam-turbine control, including turbine speed and load regulation. Depending on the configured application, additional extraction/admission functions may also be supported.
Q: Can any 505E model replace the 9907-166 R?
A: Replacement should not be assumed based only on the 505E family name. Power-supply rating, I/O configuration, software settings, turbine application, and hardware revision should all be checked.
Q: What should be checked before installation?
A: Confirm the complete 9907-166 R part number, 125 VDC supply, turbine application, I/O wiring, configuration parameters, and existing Woodward control-system documentation.
Recommended WOODWARD Models
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