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GE Hydran M2 Mark III Enhanced DGA monitoring for transformers The Hydran M2 is a compact permanently installed on-line transformer monitoring device that will warn personnel of developing failure conditions.It continuously monitors the combined values(ppm)of various faulty gases or hydrogen only values(depending on the sensor purchased).In addition,it tracks the moisture in the oil(readings are in%RH and ppm).

　　By adding additional sensors,the Hydran M2 can also calculate mathematical models of transformers based on IEEE and IEC standards to provide more information about transformer performance.

　　Characteristics of the

　　Easy to upgrade on-site,the Hydran M2 accepts analog signals and monitors other critical transformer parameters

　　Calculation of winding hot spots and other IEEE transformer models to enhance diagnosis of transformer condition(depending on installed sensor)

　　The Hydran M2 is easy to install on existing single transformer valves and typically does not require power outages

　　Integrated display and keyboard simplify local user interaction and Hydran M2 data visualization

　　A built-in moisture sensor measures moisture in the oil,which is critical for identifying paper degradation and gasket leaks

　　Compatible with GE's acclaimed Perception software for download,trend analysis,and analysis of transformer health data

Enhanced Monitoring with Extended Sensor Life

The Hydran M2-X is the next generation of the field-proven family of Hydran DGA monitoring solutions, providing continuous monitoring of gas and moisture levels to alert users of developing faults and minimize the risk of unplanned outages. The M2-X builds on GE’s strong domain expertise to deliver an optimized, low maintenance monitoring device with extended sensor life.

The Hydran M2-X is also available in a UL certified, HazLoc version (part number: M2-X-HZ) for installation on transformers located in hazardous locations designated as Class I, Division 2

The Hydran sensors are available as a traditional Hydran composite gas (H2, CO, C2H2, C2H4) sensor or a discrete Hydrogen only (H2) sensor. In addition, it tracks moisture in oil (reading in %RH and ppm) and is compatible with various transformer oil types (standard mineral insulating oils and newer natural and synthetic ester based fluids).

Key Benefits

• Small form factor, no moving parts, and low maintenance
• Support for Asset Performance Management (APM) software analytics, enabling fleet level deployments
• Condition monitoring for transformers with mineral insulating oils or ester based fluids (natural and synthetic)
• Extending beyond DGA monitoring, through the connection of sensors, the Hydran M2-X can monitor other parameters such as top oil temperature, load current and through the use of IEEE based mathematical models, can provide further insight on changing transformer conditions
• Provides critical data for APM strategies, facilitating planning of site intervention and maintenance activities

• The M2-X-HZ version is certified for hazardous locations where ignitable concentrations of flammable gases, vapors or liquids are not likely to exist under normal operating conditions but where the risk still exists.