HYDRAN M2 | GE Electric Transformer gas monitoring system
Product Description
The GE HYDRAN M2 is an Advanced Transformer Gas Monitoring System designed for real-time detection of incipient faults in oil-filled transformers and reactors. It continuously analyzes dissolved combustible gases (DGA) generated by thermal/electrical faults, enabling early warning of insulation degradation, arcing, or overheating before catastrophic failures occur.
Key Features
- Multi-Gas Detection: Simultaneously measures H₂, CO, C₂H₂, C₂H₄, and C₂H₆ with ppm-level accuracy.
- TAP™ Technology: Thermal Conductivity/Pellistor hybrid sensors for 5-year+ calibration stability.
- Autonomous Operation: Self-compensating for oil temperature/pressure variations (-40°C to 85°C).
- Cybersecurity: IEC 62351-compliant data encryption for IEC 61850/MQTT communications.
- Zero Maintenance: Membrane-based oil sampling without pumps or consumables.
- Hazard Certification: ATEX/IECEx Zone 0 (gas groups IIC/T6) for explosive environments.
Product Specifications
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Parameter
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Specification
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Detection Range
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H₂: 0–2000 ppm · C₂H₂: 0–500 ppm · CO: 0–5000 ppm
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Accuracy
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±10% or ±10 ppm (whichever greater)
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Response Time
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<4 hours for 90% gas saturation
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Oil Compatibility
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Mineral/Synthetic/Ester fluids (IEC 60599)
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Outputs
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4–20mA, RS485, Ethernet (IEC 61850-8-1 GOOSE)
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Alarm Relays
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3x SPDT (250V AC/5A) for gas concentration
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Enclosure Rating
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IP66 (NEMA 4X) stainless steel
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Power Supply
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88–300V AC/DC or 24V DC (redundant option)
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Compliance
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IEEE C57.104, IEC 60599, IEC 62443-3-3
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Series Overview
Part of GE’s HYDRAN Transformer Intelligence Series:
- HYDRAN M2: Flagship DGA monitor with full gas suite.
- HYDRAN 201Ti: H₂-only monitor for budget applications.
- HYDRAN M2-R: Ruggedized version for mobile substations.
- HYDRAN iQ: Cloud analytics platform for fleet-wide DGA trend analysis.
Applications
- Power Transformers: Early fault detection in 66kV–1200kV grid assets.
- Wind Farm Substations: Condition monitoring in offshore platforms.
- Industrial Plants: Critical process transformers (steel mills, data centers).
- HVDC Converter Stations: Reactor health assessment.
- Railway Traction: Monitoring locomotive transformers.
Functional Role
- Fault Diagnosis: Duval Triangle/Rogers Ratio algorithms identify fault types (PD, T1-T3).
- Trend Analytics: Tracks gas generation rates (ppm/day) via embedded SD card logging.
- Load Correlation: Syncs gas data with SCADA load profiles via IEEE C37.118 synchrophasors.
- Asset Prioritization: RPN (Risk Priority Number) output for maintenance scheduling.
Why Choose HYDRAN M2?
- Proven Reliability: >25,000 installations with 99.3% field uptime.
- Life Extension: Reduces transformer failure risk by 68% (CIGRE TB 771).
- Integration Ready: Pre-mapped data models for GE APM, Siemens Spectrum, OSIsoft PI.
- Retrofit Kit: Adapts to existing Buchholz/relief valves without oil drainage.
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