Portable dissolved gas analyser helps track transformer health

DOBLE Engineering Company has released the Delphi Portable a dissolved gas analyser for power transformers.

Lou Caruana

The Delphi Portable offers detailed data analysis in the field, complementing the standard Delphi, which is an on-line monitor.

For use in routine and emergency testing situations, the Delphi Portable takes dissolved gas analysis (DGA) readings in 30 minutes or less, sharing actionable information on seven key diagnostic gases and moisture in insulating oil.

The new device uses patented photo-acoustic cantilever technology for accuracy and repeatability, giving electric power professionals the data they need to make effective asset maintenance and operational decisions.

Doble Engineering Company solutions director Tony McGrail said: “The Delphi Portable brings valuable and reliable DGA testing into the field.

“If your on-line DGA device issues an alarm, you can further investigate with the Delphi Portable. It will significantly improve our customers’ ability to evaluate the health of transformers, and other oil-filled equipment, with near-immediate results.”

The Delphi Portable identifies faults by measuring composite gas levels. The tool combines traditional DGA and Doble’s unique Dissolved Gas Anomaly Indication system (DG-AI) to identify results which need further attention.

Users benefit from an easy-to-operate interface within the device as well as its built in printer for hard copy results.

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