Description
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.
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
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Mounting: Install in a vibration-free location with adequate cooling.
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Firmware Updates: Regularly update software via Woodward’s configuration tools.
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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.
