WOODWARD 8237-1246 ProTech-GII Configurable Overspeed Detection System
1. Product Description
The WOODWARD 8237-1246 is a high-reliability, configurable overspeed detection system designed for steam, gas, and hydro turbines. As part of Woodward’s ProTech-GII family, it ensures safe shutdown during overspeed or over-acceleration events, protecting critical equipment and personnel. The module features a 2-out-of-3 voted architecture for redundant trip relay outputs, Modbus® communication, and optional acceleration detection. With a bulkhead mount design and support for both high-voltage and low-voltage inputs, it integrates seamlessly into industrial control systems, particularly those requiring fast response times and fail-safe operation.
2. Technical Specifications
Parameter
Specification
Input Voltage
100–240 V AC/DC
Trip Relays
Dual redundant (2-out-of-3 voting) or three independent non-voted outputs
Communication
Modbus RTU/ASCII
Speed Readout
4–20 mA analog
Operating Temperature
-10°C to 60°C (14°F to 140°F)
Enclosure Rating
IP56 (bulkhead mount)
Dimensions
320 × 436 × 153 mm
Weight
1 kg (approx.)
3. Advantages and Features
Triple-Modular Redundancy: Ensures continuous operation even if one module fails, with online replaceability.
Fast Response: Detects overspeed within milliseconds, triggering shutdown to prevent catastrophic damage.
Flexible Configuration: Supports dual redundant or independent relay outputs, adapting to diverse system needs.
Sulfur Contamination Resistance: Reliable performance in harsh environments, such as oil and gas facilities.
Remote Monitoring: Modbus connectivity enables real-time data tracking and diagnostics.
4. Application Areas and Case Studies
Industries:
Power generation (steam/gas turbines)
Oil and gas (compressor control)
Water treatment (hydro turbines)
Marine propulsion systems
Case Study: A power plant in Texas reduced turbine downtime by 25% after installing the 8237-1246 to replace an aging overspeed system. The module’s online repair capability minimized maintenance interruptions.
5. Competitor Comparison
Compared to generic overspeed systems, the 8237-1246 offers:
Higher Safety: Voted relay architecture and triple redundancy.
Ease of Integration: Pre-configured for Woodward’s control ecosystems.
Cost Efficiency: Lower lifecycle costs due to rugged design and reduced downtime.
6. Selection Recommendations
System Compatibility: Ensure compatibility with Woodward’s ProTech-GII series and existing turbine control systems.
Environmental Factors: Verify temperature and humidity ratings match the installation environment.
Maintenance Strategy: Consider sourcing refurbished units or alternatives if long-term support is critical.
7. Installation and Maintenance Notes
Mounting: Install in a vibration-free location with adequate cooling.
Firmware Updates: Regularly update software via Woodward’s configuration tools.
Spare Parts: Secure backup modules to avoid operational delays.
Shanxi Xinyeda International Trade Co., Ltd. specializes in WOODWARD 8237-1246 and automation spare parts. Visit www.xydcontrol.com for sales and technical support.
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Full 12-month warranty on all components
Full 12-month warranty on all components
