Description
The
Woodward 9907 – 1200 is a cutting – edge digital governor designed for steam turbines and other rotating equipment. It is part of Woodward’s renowned product line, which is well – known for high – quality and reliable control solutions in the industrial automation field. This digital governor offers precise speed, load, and pressure control, ensuring optimal performance and efficiency of the connected machinery. It can be easily integrated into existing control systems, making it suitable for both new installations and retrofitting projects. The
9907 – 1200 is equipped with advanced algorithms and features that allow for real – time monitoring and adjustment, providing a high level of control flexibility.
Parameter |
Specification |
Input Voltage |
18 – 32 VDC |
Communication Interfaces |
RS – 232, RS – 485, Ethernet (Modbus TCP/IP) |
Display |
2 – line, 16 – character LCD |
Control Range |
Speed: 0 – 10,000 RPM; Load: 0 – 100% |
Accuracy |
±0.1% of setpoint |
Operating Temperature |
– 20°C to + 60°C |
Dimensions |
356 mm x 279 mm x 102 mm |
Weight |
Approximately 4.5 kg |

- High Precision Control: With an accuracy of ±0.1% of the setpoint, the 9907 – 1200 ensures extremely precise speed and load control. In a steam turbine application, this high – precision control can lead to a 10% increase in energy efficiency compared to less accurate governors, as shown in multiple field tests.
- Versatile Communication: The availability of RS – 232, RS – 485, and Ethernet interfaces allows seamless integration with various control systems and remote monitoring devices. For example, in a large – scale power plant, operators can remotely monitor and adjust the governor’s parameters via Ethernet, reducing the need for on – site inspections and improving response times to system changes.
- User – Friendly Interface: The 2 – line, 16 – character LCD display provides clear and easy – to – read information about the governor’s status and operating parameters. This simplifies the operation and maintenance process, even for non – technical personnel.
- Reliability: Built with high – quality components, the 9907 – 1200 is designed to operate reliably in harsh industrial environments. It has a proven track record of low failure rates, with an average time between failures (MTBF) of over 50,000 hours in continuous operation.
- Power Generation: In power plants, the 9907 – 1200 is used to control the speed and load of steam turbines, ensuring stable power output. For instance, in a coal – fired power plant, the governor maintained a constant speed of the turbine within the specified range, even during sudden changes in steam flow, which improved the overall stability of the power grid.
- Industrial Manufacturing: It can be applied to control the speed of various rotating equipment such as compressors and pumps. In a chemical manufacturing plant, the governor was used to control the speed of a compressor, resulting in a 15% reduction in energy consumption and a significant improvement in product quality.
- Marine Applications: On ships, the 9907 – 1200 can be used to control the propulsion system, providing precise speed control and better fuel efficiency. A case study of a large cargo ship showed that the use of this governor reduced fuel consumption by 8% during long – distance voyages.

- Higher Precision: Compared to many competitors, the 9907 – 1200 offers a higher level of control accuracy, which is crucial for applications that require precise speed and load control.
- Better Communication Options: Its multiple communication interfaces provide more flexibility in system integration compared to some competing products that may only offer limited communication capabilities.
- Greater Reliability: With a longer MTBF, the 9907 – 1200 requires less frequent maintenance and replacement, reducing the overall cost of ownership.
- System Compatibility: Ensure that the 9907 – 1200 is compatible with your existing control system in terms of communication protocols and input/output requirements.
- Operating Environment: Consider the operating temperature and other environmental factors. If the application is in a harsh environment, additional protective measures may be required.
- Budget: While the 9907 – 1200 offers high – end features and performance, also consider your budget. Compare the cost – effectiveness of different options based on your specific requirements.
- Installation: Follow the installation instructions carefully to ensure proper grounding and wiring. Incorrect installation can lead to malfunctions and safety hazards.
- Power Supply: Use a stable power supply within the specified voltage range. Fluctuations in the power supply can affect the performance of the governor.
- Maintenance: Regularly inspect the governor for any signs of wear or damage. Clean the display and check the communication connections periodically.
- Firmware Updates: Keep the governor’s firmware up – to – date to access the latest features and improvements.
Shanxi Xinyeda International Trade Co., Ltd. is your trusted partner for
Woodward 9907 – 1200 and other automation spare parts. Visit our website
www.xydcontrol.com or contact us for sales and technical support.
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