Description
1. Product Description
GE HYDRAN M2 is a compact, permanently mounted online transformer monitoring device designed to detect early fault conditions in oil-immersed transformers. As part of GE’s advanced asset health management portfolio, the HYDRAN M2 continuously monitors dissolved fault gases (hydrogen, carbon monoxide, acetylene, ethylene) and moisture in oil, providing real-time data to prevent unexpected outages. Its modular design supports optional sensors (oil temperature, load, ambient conditions) and integrates with IEEE/IEC-standard mathematical models to calculate transformer health indicators like winding hot-spot temperature and insulation aging. With robust communication protocols (RS485, TCP/IP), the HYDRAN M2 seamlessly integrates into SCADA/DCS systems, making it ideal for power utilities, industrial plants, and critical infrastructure.
2. Product Parameters
| Parameter | Specification |
|---|---|
| Model | HYDRAN M2 |
| Brand | GE (General Electric) |
| Monitoring Parameters | Dissolved gas (H₂, CO, C₂H₂, C₂H₄), moisture (%RH/ppm), optional temperature/load |
| Sensor Types | Hydrogen-only or composite gas (100% H₂ + CO/C₂H₂/C₂H₄ sensitivity) |
| Communication | RS485 (standard), TCP/IP (copper/fiber optional), Modbus RTU/ASCII |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Protection Rating | IP65 (dust/water ingress protection) |
| Dimensions (W×H×D) | 263 × 58 × 28 mm (compact design for single-valve installation) |
| Weight | 4.3 kg |
| Compatibility | Mineral/synthetic ester oils; GE’s Perception™ Transformer Fleet Management software |
| Self-Diagnostics | Full system self-test (every 15 days), fault alerts (power failure, sensor issues) |
HYDRAN M2
3. Advantages and Features
- Early Fault Detection: Continuous monitoring of gas/moisture levels with configurable alarms (alert/warning thresholds).
- Low Maintenance: No moving parts, pumps, or field calibration; sensor lifespan >10 years.
- Easy Installation: Mounts directly to a transformer oil valve (no additional piping).
- Advanced Analytics: On-board IEEE-standard models for insulation aging, overload capacity, and cooling efficiency.
- Reliability: Third-generation design with a global installed base of 10,000+ units; IP65 rating for harsh environments.
Case Study: A utility company reduced transformer downtime by 40% using HYDRAN M2, detecting incipient faults 6 months before manual sampling would have identified them.
4. Application Areas and Use Cases
- Industries: Power generation/distribution, oil/gas, manufacturing, water treatment.
- Scenarios: Medium/large transformers, transmission substations, critical industrial equipment.
- Example: A manufacturing plant used HYDRAN M2 to monitor 50 MVAR transformers, triggering proactive maintenance based on moisture-in-paper calculations, resulting in 99.8% uptime over 3 years.
5. Competitor Comparison
Compared to similar DGA (Dissolved Gas Analysis) systems:
- Integration: Native support for GE’s asset management software (no third-party adapters).
- Flexibility: Optional analog inputs (4x) for temperature/load correlation (vs. limited inputs in 竞品).
- Cost Efficiency: 30% lower lifecycle costs due to modular design (replace sensors instead of full units).
HYDRAN M2
6. Selection Recommendations
- Monitoring Needs: Choose hydrogen-only sensors for basic applications; composite gas for comprehensive fault analysis.
- Environment: IP65 rating suits outdoor/harsh environments; verify oil type (mineral/ester) compatibility.
- Scalability: Plan for future sensor additions (e.g., load monitoring) using available analog inputs.
- Budget: Balance model complexity (basic monitoring vs. full analytics) with asset criticality.
7. Precautions
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Installation: Ensure oil valve is open during operation; torque fittings to 8–10 N·m.
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Maintenance: Schedule annual firmware updates; replace sensor membranes every 5 years (composite gas models).
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Environment: Avoid installation in high-vibration areas; maintain ambient temperature (-20°C to 60°C).
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Safety: De-energize the transformer before servicing; follow GE’s ESD protection guidelines.
