GE Vernova HYDRAN M2-H2 Hydrogen Only DGA Monitor

Product Brief Description

The HYDRAN M2-H2 is a compact online dissolved gas-in-oil monitoring transmitter dedicated for hydrogen measurement on oil-immersed transformers. It continuously tracks hydrogen concentration and moisture in transformer oil to capture early insulation degradation, partial discharge and thermal faults, delivering reliable data for transformer asset health management and predictive maintenance.

Product Features

• Pure hydrogen (H₂) sensing version, high sensitivity for general transformer fault gas
• Built-in moisture measurement, supports readings in ppm and %RH
• Valve direct mounting design, no sampling pump or complex piping required
• Supports IEEE / IEC transformer thermal model calculation with optional external sensors
• Multiple communication options: RS485 Modbus, Ethernet TCP/IP and 4-20mA analog output
• Local LCD display, configurable relay alarm contacts and automatic self-diagnosis
• Data logging function stores historical trend records for up to one year
• Rugged enclosure for substation outdoor installation, compatible with mineral and ester oils

Application Scenarios

• Medium and large oil-immersed power transformers in substations and power plants
• Renewable energy station step-up transformers and distribution transformers
• Industrial critical transformers for petrochemical, mining and heavy process plants
• Integration with SCADA, DCS and transformer condition monitoring platforms
• Preventive online DGA monitoring as an economical alternative to periodic oil sampling

FAQ

Q1: What does M2-H2 measure?

A1: This H2-only model mainly measures hydrogen gas and moisture dissolved in transformer oil.

Q2: Can it connect to SCADA system?

A2: Yes, it supports Modbus RTU, TCP/IP and 4-20mA analog signal for SCADA or DCS connection.

Q3: Does it need external oil pump?

A3: No, passive sampling design, directly install on transformer drain or radiator valve.

Q4: Can it calculate hot spot temperature?

A4: Yes, it supports IEEE / IEC thermal models when equipped with oil temperature and load sensors.

Q5: Is this unit interchangeable with Hydran H201Ti?

A5: They are both DGA monitors but different series; please confirm sensor type and communication before replacement.