Welcome to the next evolution in transformer protection. Our real‑time DGA monitoring with hydrogen and acetylene detection delivers early fault insight, precise multi‑gas analysis, and continuous diagnostics to ensure safe, reliable transformer performance.
Real‑time hydrogen + acetylene monitoring identifies dangerous arcing faults earlier than any co‑based method, preventing catastrophic transformer failures and keeping crews, assets, and communities safer.
Two‑gas hydrogen and acetylene monitoring delivers earlier, clearer detection of fault progression, reducing unplanned outages and strengthening fleet‑wide reliability for utilities and industrial operators.
With real‑time visibility into key fault gases, operators gain deeper insight into transformer health, enabling smarter decisions, accurate risk prioritization, and better long‑term asset planning.
Much like a blood sample can shed light on a person’s health, dissolved gas analysis (DGA) of transformer oil can provide information on past, historical events (faults) that have happened in a transformer as well as active conditions, evidenced by an increasing trend in fault gases. This information can then be used to diagnose, repair, and ultimately extend the life of the transformer.
Many look for rising, relevant gas increases. Oftentimes during loading, gas trends may go up, but they eventually settle, or level out. When an actual problem is in process, the gasses associated with the temperature change will continue to rise, providing the information needed to not only identify that a problem exists, but also the severity of the issue. For example, if a connection in the transformer becomes compromised, it will inevitably begin overheating. The severity of the overheating is reflected by the gas that generates at that specific temperature, such as acetylene which can begin generating at 500 deg. C+.
DGA (Dissolved Gas Analysis) online monitoring can provide clues to indicate any of the fault types referred to in the IEEE (C57.104-2019) or IEC (60599) guides. These include partial discharge, thermal faults, and discharges in addition to fault subtypes such as stray gassing, overheating, carbonization, and catalytic reactions.
Use of dissolved gas analysis (DGA) online monitoring is not a replacement for offline sampling, it is a compliment to it. Though dissolved gas analysis (DGA) monitoring can provide vital, actionable information in near real-time, there are many other pieces of information (witnesses) to be gathered from offline oil sampling that cannot be obtained from an online monitor. Items such as furanic compound count, acidity level, dielectric breakdown strength, and general oil quality to name a few. All of this information is important to optimize the maintenance plan for your transformer assets.
Outside of the rare occasion of an extremely aggressive fault leading to a catastrophic failure of a transformer, the vast majority of failures are the result of an issue that intensifies over time. This intensification often takes days, weeks, or months. Dissolved gas analysis (DGA) online monitoring allows one to see an increasing trend in fault gas in a transformer which indicates an active condition, warranting investigation, and, in many cases, this leads to a repair/resolution of the issue, prolonging the life of the asset and preventing catastrophic failure, which could also lead to collateral damage including other equipment and, in some cases, personal injury…or worse.
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A deep dive into dissolved gas analysis (DGA) using the Megger InsuLogix® G2
This white paper details how NASA-grade technology in the InsuLogix® G2 delivers a new standard in oil transformer fault detection.
