GE HYDRAN M2-X-O1 S1A2 B2 C0 D0 P1 – Online Dissolved Gas Analysis (DGA) & Moisture Monitor for Power Transformers

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Technical Specifications

Manufacturer: GE Vernova (GE Grid Solutions)
Model: HYDRAN M2-X-O1 S1A2 B2 C0 D0 P1
Core Function: Online DGA (Dissolved Gas Analysis) + Moisture-in-Oil Monitoring
Compatible Oil Types: Mineral insulating oils, natural/synthetic ester-based fluids
Gas Measurement Ranges:
- Hydrogen (H₂): 0–2000 ppm
- Carbon Monoxide (CO): 0–2500 ppm
- Ethylene (C₂H₄): 0–500 ppm
- Acetylene (C₂H₂): 0–100 ppm
Moisture Measurement: 0–100 %RH (relative humidity), 0–1000 ppm moisture in oil
Accuracy: ±10% of reading (gases); ±5% RH (moisture)
Response Time: <30 minutes for full gas extraction and measurement cycle
Power Supply: 85–265 VAC, 50/60 Hz or 110–150 VDC (max 50W)
Communication Interfaces:
- Standard: RS-485 (Modbus RTU, DNP3.0)
- Optional: Ethernet TCP/IP, Fiber Optic, IEC 61850
Outputs: 4–20 mA analog outputs, 4x configurable Form-C alarm relays
Enclosure: Aluminum NEMA 4X/IP56 (dustproof, waterproof, corrosion-resistant)
Dimensions (W×H×D): 356 mm × 279 mm × 178 mm
Weight: 12.5 kg (net)
Operating Temperature: -40°C to +55°C (-40°F to +131°F)
Configuration Specifics (S1A2 B2 C0 D0 P1):
- S1: Size 1 (standard compact form factor)
- A2: 2 Amps capacity rating
- B2: 2 kV voltage rating
- C0: 0 mA current sensitivity
- D0: 0% dissipation factor
- P1: Equipped with pressure relief device

Key Features

Continuous Early Fault Detection:

Real-time monitoring of key fault gases (H₂, CO, C₂H₄, C₂H₂) to identify developing anomalies (overheated insulation, partial discharge, arcing) before catastrophic failure.
Dual Gas-Moisture Monitoring:

Integrates a composite gas sensor (H₂/CO/C₂H₄/C₂H₂) and a precision moisture sensor, providing holistic transformer health data (gas trends + moisture aging risk).
Robust & Maintenance-Free Design:

No moving parts, pumps, or external piping; direct valve mounting on transformers eliminates oil leakage risks and simplifies installation (no outage required for most cases). Fuel cell sensor lifespan exceeds 10 years, reducing replacement frequency.