Description
Woodward 8237-1246 ProTech-GII Speed Detection System
1. Product Description
The Woodward 8237-1246 is a high-reliability safety module designed for critical rotating equipment, particularly steam turbines and generators in energy, manufacturing, and industrial sectors. As part of Woodward’s ProTech-GII series, this module provides advanced overspeed detection and protection, ensuring rapid shutdown to prevent catastrophic failures. It features dual redundant tripping relay outputs with a 2-out-of-3 voted architecture, enhancing safety by minimizing false trips. The 8237-1246 supports integration with turbine control systems and DCS platforms, offering real-time speed monitoring and fault diagnostics. Its rugged design and conformal coating protect against harsh environments, including sulfur contamination, making it suitable for offshore, petrochemical, and power plant applications.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Input Voltage | 24 VDC ±10% |
| Current Consumption | ≤1.5 A |
| Speed Sensor Inputs | 3 channels (MPU/proximity switches) |
| Trip Relays | 2 dual redundant (5 A at 28 VDC) |
| Communication | Modbus RTU (optional) |
| Operating Temperature | -40°C to +70°C (-40°F to +158°F) |
| Safety Compliance | IEC 61508 SIL 2, ISO 13849 PL d |
| Dimensions | 200 × 150 × 80 mm (7.87 × 5.91 × 3.15 in) |
3. Advantages and Features
- Dual Redundancy: 2-out-of-3 voting ensures fail-safe operation.
- Acceleration Detection: Optional feature to detect rapid speed increases.
- On-Line Testing: Supports manual or automatic overspeed tests without system shutdown.
- Sulfur-Resistant Design: Conformal coating protects against corrosive gases (IEC 721-3-3 Class 3C2).
- Modbus Integration: Enables seamless communication with plant control systems.
4. Application Areas and Case Studies
- Power Generation: Protects steam turbines in coal, gas, and nuclear power plants.
- Oil & Gas: Monitors compressors and pumps in offshore platforms.
- Industrial Machinery: Ensures safe operation of high-speed rotating equipment.
Case Study:
A European power plant reduced turbine downtime by 25% using the 8237-1246, which detected and mitigated a potential overspeed event during grid instability.
A European power plant reduced turbine downtime by 25% using the 8237-1246, which detected and mitigated a potential overspeed event during grid instability.
5. Competitor Comparison
- Higher Redundancy: Dual redundant outputs compared to single-channel alternatives.
- Corrosion Resistance: Sulfur-resistant coating outperforms standard modules in harsh environments.
- Flexible Configuration: Supports both voted and non-voted trip relay setups.
6. Selection Recommendations
- Safety Requirements: Ideal for SIL 2-rated systems requiring redundant protection.
- System Compatibility: Ensure compatibility with existing ProTech-GII modules for retrofitting.
- Environmental Conditions: Opt for sulfur-resistant models in petrochemical or marine settings.
7. Precautions
- Sensor Calibration: Regularly verify speed sensor inputs for accuracy.
- Software Updates: Apply Woodward’s latest firmware to maintain safety compliance.
- Installation: Follow IP65-rated enclosure guidelines in dusty or wet environments.
- Trip Testing: Perform periodic on-line tests to validate relay functionality.
声明
山西鑫业达国际贸易有限公司 is your trusted partner for Woodward 8237-1246 and automation solutions. Visit www.xydcontrol.com or contact us for sales and technical support.
山西鑫业达国际贸易有限公司 is your trusted partner for Woodward 8237-1246 and automation solutions. Visit www.xydcontrol.com or contact us for sales and technical support.
