+86 18030182217
+86 18030182217
sandydcsplc@gmail.com
Description
Woodward 9907-167 505E Digital Governor for Industrial Steam Turbines
Product Overview
The Woodward 9907-167 is a second-generation 505E digital governor designed for mission-critical steam turbine control in industrial applications. As part of Woodward’s renowned 505E series, this module provides precise speed and load regulation, ensuring stable operation of steam turbines in power generation, oil & gas, and marine environments. It supports single extraction and/or admission control with configurable parameters, making it suitable for turbines requiring complex pressure and flow management .
Equipped with a 32-bit microprocessor, the 9907-167 offers real-time control and diagnostics, with a front-panel LCD display and pushbutton interface for on-site configuration. It features dual redundant power inputs (18–32 VDC) and surge protection to withstand voltage fluctuations, while its conformal-coated circuit boards ensure reliability in harsh conditions (-25°C to +65°C ambient temperature) .
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 9907-167 |
| Manufacturer | Woodward Inc. |
| Product Type | Digital Governor for Steam Turbines |
| Processor | 32-bit microprocessor |
| Input Voltage | 18–32 VDC (dual redundant) |
| Output Channels | 2 actuator outputs (4–20 mA/20–160 mA), 8 relay outputs, 6 programmable analog outputs (4–20 mA) |
| Communication | 2x RS-485 (Modbus RTU/ASCII), compatible with Woodward RemoteView software |
| Operating Temperature | -25°C to +65°C (standard); -25°C to +55°C with optional NEMA 4 enclosure |
| Storage Temperature | -40°C to +85°C |
| Dimensions | 14″ x 11″ x 4″ (356 x 279 x 102 mm) |
| Weight | <10 lbs. (4.5 kg) |
| Certification | CE, UL, cUL |
| Redundancy Support | Hot-swappable in redundant configurations |
| Fault Detection | Overspeed, undervoltage, communication failures |
Key Features and Advantages
Precision Control: Leverages PID algorithms to maintain turbine speed within ±0.25% accuracy, critical for applications requiring stable power output (e.g., combined cycle power plants) . Its dual actuator control ensures smooth valve positioning for optimal steam flow management.
Rugged Design: The module’s conformal coating and NEMA 4 enclosure (optional) protect against dust, moisture, and vibration, making it suitable for offshore platforms and chemical plants. Its wide temperature range supports deployment in extreme climates .
Flexible Integration: Supports Modbus communication for seamless integration with DCS/PLC systems, enabling remote monitoring and diagnostics. It interfaces with Woodward’s 2301A load sharing controllers and 5466 I/O modules for scalable automation solutions .
User-Friendly Interface: The front-panel LCD display and keypad allow operators to monitor real-time parameters (e.g., speed, pressure) and adjust setpoints without additional software. Fault codes and event logs simplify troubleshooting .
Redundancy Capabilities: Dual power inputs and hot-swappable architecture minimize downtime during maintenance. Redundant communication ports ensure continuous data exchange with upstream systems .
Application Areas
The Woodward 9907-167 excels in industries requiring reliable steam turbine control:
- Power Generation: Manages steam turbines in cogeneration plants, ensuring stable electricity and heat supply. Its overspeed protection feature safeguards against catastrophic failures .
- Oil & Gas: Deployed in refineries and LNG facilities to control steam-driven compressors and pumps. The module’s surge protection is critical in high-voltage environments .
- Marine: Used in ship propulsion systems to regulate turbine speed and load, adhering to IMO standards for fuel efficiency and emissions control .
- Manufacturing: Integrates with process steam systems in paper mills and chemical plants, optimizing energy consumption and production output .
Successor Model and Upgrades
The Woodward 505 XT is the recommended successor to the 9907-167, offering Ethernet connectivity, enhanced diagnostic capabilities, and drop-in compatibility. The 505 XT supports IEC 61131-3 programming and advanced cybersecurity features, making it ideal for Industry 4.0 applications . For users requiring SIL-certified solutions, Woodward’s Flex 500 series is recommended .
Installation and Maintenance
Installation:
- Mount the module in a grounded control cabinet with adequate ventilation.
- Connect 18–32 VDC power to terminals J1 and J2 for redundancy.
- Interface with turbine speed sensors (proximity probes) and actuators using shielded cables.
- Configure parameters via the front-panel keypad or Woodward’s ProAct software .
Maintenance:
- Regularly inspect for loose connections and corrosion. Clean the enclosure with a dry cloth.
- Monitor diagnostic LEDs for fault indicators (e.g., red LED for communication failure).
- Replace worn-out components (e.g., relays) with Woodward-certified spares. Schedule annual firmware updates to address security patches .
Product Warranty and Support
Woodward guarantees the 9907-167 against defects in materials and workmanship for 1 year from purchase. Customers gain access to Woodward’s global technical support network, including 24/7 remote diagnostics and on-site training. Documentation (datasheets, wiring diagrams) is available via Woodward’s online portal .
9907-167.pdf
HS:8443919090
Contact info
- WhatsApp: +86 18030182217
- Email: sandydcsplc@gmail.com
- Phone: +86 18030182217
- Wechat: +86 18030182217
- Website: www.xiongbaparts.com
