GE Grid Solutions recently launched a new online transformer monitoring device, the Hydran M2, designed to provide more reliable operation assurance for power systems by monitoring dissolved gases and moisture in transformer oil in real time. The device continuously monitors the combined value of a variety of faulty gases, including hydrogen, methane, acetylene, ethane and ethylene, whose formation and accumulation can be a sign of insulation failure.

The Hydran M2 unit is easy to install and can be mounted directly onto a single transformer oil valve without the need for additional piping or pumps. It also offers an optional analog input module for connecting additional sensors such as oil temperature, transformer load or ambient temperature for deeper analysis. In addition, the Hydran M2 supports integration with SCADA or DCS systems through a variety of communication options and protocols, including IEC® 61850, simplifying compatibility with existing systems.

HYDRAN M2-X

The device uses advanced sensor technology that responds to 100% hydrogen and is sensitive to gases such as manual carbonic acid (superheated paper), acetylene (electric arc) and ethylene (superheated oil), thus covering the main root causes of failure. In addition, the Hydran M2’s humidity sensor can measure moisture in the oil, which may be caused by the degradation of insulating paper or a leaky gasket.

Another feature of the Hydran M2 is its flexible alarm system. When abnormal faulty gas or moisture levels are detected, the device will sound an alarm, and two alarm levels (warning and alarm) can be set to indicate the severity of the problem. In addition, the equipment also has an automatic self-test function, which is carried out every 15 days to ensure the normal operation of the equipment and trigger the service alarm when a fault is detected.

GE Grid Solutions’ Hydran M2 represents a significant advance in transformer monitoring technology that not only reduces the risk of unplanned failures, but also helps avoid costly cleanups, replacements and unplanned downtime, providing power companies with a cost-effective and powerful transformer monitoring solution. By using the Hydran M2, utility companies can improve transformer reliability, reduce downtime, and reduce maintenance costs.