GE M2X-O1-S1-A1-B0-C0-D1-P2-G0-VC0-V0-E0-M0-L2

Technical Specifications

• Manufacturer: GE Vernova (GE Grid Solutions)
• Product Series: Hydran M2‑X DGA Monitoring System
• Module Type: Dissolved Gas Analysis (DGA) and Moisture Monitoring Unit
• Part Number: M2X‑O1‑S1‑A1‑B0‑C0‑D1‑P2‑G0‑VC0‑V0‑E0‑M0‑L2
• Sensor Configuration: Single composite gas sensor (H₂, CO, C₂H₂, C₂H₄) + built‑in moisture sensor
• Measurement Parameters:
  • Dissolved Gases: H₂ (0–10,000 ppm), CO (0–5,000 ppm), C₂H₂ (0–1,000 ppm), C₂H₄ (0–5,000 ppm)
  • Moisture: 0–100 %RH, 0–2,000 ppm (water in oil)
• Accuracy:
  • Gas Measurements: ±5% of reading (for H₂, CO, C₂H₂, C₂H₄)
  • Moisture Measurements: ±3% RH, ±5% ppm
• Communication Interfaces: RS‑485 (Modbus RTU), RS‑232 (local connection to Perception software)
• Power Supply: 100–240 V AC (50/60 Hz), 12–32 V DC; typical power consumption 15 W
• Enclosure Rating: NEMA 4X (IP66) for outdoor installation
• Operating Temperature: -40°C to +55°C (-40°F to +131°F)
• Storage Temperature: -40°C to +70°C (-40°F to +158°F)
• Humidity Range: 5%–95% non‑condensing
• Oil Compatibility: Mineral oils, natural ester oils, synthetic ester oils
• Oil Pressure Range: 0–700 kPa (0–100 psia); vacuum‑resistant sensor
• Hazardous Location Certification: UL certified for Class I, Division 2, Groups A–D
• Safety Compliance: IEC 61010‑1/EN 61010‑1
• Dimensions: 350 mm × 250 mm × 200 mm (13.8 in × 9.8 in × 7.9 in)
• Weight: Installed 7.5 kg (16.5 lb); shipping 9 kg (20 lb)
• Display & Keypad: Integrated LCD display (128×64 pixels) + membrane keypad for local operation
• Alarm Outputs: 2 Form C relay outputs (5 A, 250 V AC) for alarm signaling

Functional Features

• Continuous DGA & Moisture Monitoring: Tracks H₂, CO, C₂H₂, C₂H₄ and water content in transformer oil for early fault detection.
• Single Composite Gas Sensor: Measures four key fault gases with high accuracy and stability.
• Built‑in Moisture Sensor: Provides %RH and ppm readings to identify paper degradation and gasket leaks.
• Local Display & Keypad: Enables on‑site configuration, data visualization, and diagnostics without additional tools.
• Dual Communication Interfaces: RS‑485 (Modbus RTU) for network integration, RS‑232 for local PC connection to Perception software.
• Class I, Division 2 Certification: UL approved for installation in hazardous locations.
• NEMA 4X (IP66) Enclosure: Protects against dust, water, and chemical exposure in outdoor/industrial environments.
• Field Upgradeable: Supports addition of analog inputs for monitoring top oil temperature, load current, and other parameters.
• IEEE Transformer Models: Built‑in algorithms for calculating winding hot spot temperature and other IEEE‑based models.
• Alarm Relay Outputs: 2 Form C relays for triggering alerts when pre‑set gas/moisture limits are exceeded.
• Wide Oil Compatibility: Works with mineral, natural ester, and synthetic ester transformer oils.

Functional Features

• Continuous Fault Detection: Real‑time monitoring of dissolved gases and moisture to detect incipient transformer faults before they escalate.
• Low Maintenance Design: No moving parts, reducing operational costs and extending sensor life.
• Seamless System Integration: Communicates with SCADA, GE Perception™ software, and Hydran 201Ci controllers for centralized asset management.
• Local & Remote Monitoring: On‑site display/keypad for quick checks, remote access via Modbus RTU for fleet‑level monitoring.
• Hazardous Location Compliance: UL certification for safe operation in Class I, Division 2 environments.
• Environmental Protection: NEMA 4X enclosure ensures reliable performance in harsh outdoor/industrial conditions.
• Flexible Upgrades: Field‑installable analog input cards expand monitoring capabilities without replacing the unit.
• Predictive Maintenance Insights: Data supports APM strategies to optimize maintenance schedules and minimize downtime.
• IEEE‑Based Diagnostics: Calculates winding hot spot temperature and other models for enhanced transformer health assessment.
• Wide Oil Compatibility: Works with all major transformer oil types, supporting diverse fleet management.

Application Scenarios

• Utility Power Transformers: Medium to large utility transformers in power generation, transmission, and distribution networks for asset health monitoring.
• Industrial Transformers: Transformers in oil & gas, manufacturing, and mining facilities to prevent unplanned outages and production downtime.
• Hazardous Location Installations: Class I, Division 2 sites such as refineries and chemical plants requiring UL‑certified monitoring equipment.
• Remote Substations: Unattended substations where continuous DGA and moisture data is critical for remote asset management.
• Fleet‑Level Monitoring: Integrated with GE Perception™ software to manage multiple transformers across a utility/industrial network.
• Retrofit Projects: Upgrades legacy monitoring systems to add DGA and moisture capabilities without transformer downtime.
• Ester‑Based Fluid Transformers: Compatible with natural/synthetic ester oils, supporting modern transformer technology adoption.
• Critical Power Infrastructure: Nuclear power plants, data centers, and hospitals where transformer reliability is mission‑critical.

Compatibility

• Transformer Oils: Mineral insulating oils, natural ester oils, synthetic ester oils
• Communication Systems: Modbus RTU (RS‑485), RS‑232 (Perception software), Hydran 201Ci controllers
• Software: GE Perception™ transformer fleet management software, DS Agile substation HMI, PREDIX™ APM platform
• Additional Sensors: Analog input cards for top oil temperature, load current, and pressure sensors (field‑installable)
• Power Supply: 100–240 V AC (50/60 Hz), 12–32 V DC industrial power systems
• Mounting: Direct installation on transformer valve; no outage required for installation

Installation Notes

1. Mounting: Install on a single existing transformer valve; ensure secure attachment to prevent vibration‑induced damage.
2. Power Connection: Use 100–240 V AC or 12–32 V DC power supply; verify voltage compatibility before energization.
3. Communication Wiring: Connect RS‑485 for Modbus RTU network integration; use shielded cables for noise immunity.
4. Local PC Connection: Use RS‑232 to connect to a laptop running Perception software for configuration and data download.
5. Sensor Calibration: Perform initial calibration using factory‑provided standards; schedule annual recalibration for optimal accuracy.
6. Display & Keypad Setup: Configure gas/moisture alarm limits via the local keypad; test relay outputs to ensure proper functionality.
7. Environmental Protection: Ensure the NEMA 4X enclosure is properly sealed to prevent water/dust ingress; inspect gaskets regularly.
8. Post‑Installation Testing: Validate gas/moisture readings against lab results; confirm communication with SCADA/Perception software before commissioning.

Key Advantages

• Continuous Monitoring: Real‑time DGA and moisture data enables early fault detection and predictive maintenance.
• Low Maintenance: No moving parts and extended sensor life reduce operational costs.
• Wide Compatibility: Works with all major transformer oil types and integrates with existing SCADA/APM systems.
• Hazardous Location Certified: UL approval for Class I, Division 2 environments expands installation flexibility.
• Field Upgradeable: Add analog inputs to monitor additional parameters without replacing the unit.
• IEEE‑Based Diagnostics: Built‑in models provide deeper insights into transformer health beyond basic gas measurements.
• Local & Remote Access: On‑site display for quick checks, remote access for fleet‑level management.
• NEMA 4X Protection: Rugged enclosure ensures reliable performance in harsh outdoor/industrial conditions.