Transformer Dissolved Gas Analysis (DGA) Explained

This course provides a comprehensive introduction to Transformer Dissolved Gas Analysis (DGA), one of the most widely used condition monitoring techniques for liquid-insulated power transformers.

You'll learn how electrical and thermal faults generate characteristic gases within transformer insulating oil and how these gases can be analyzed to diagnose developing faults before catastrophic failure occurs.

Through detailed animations and clear explanations, the course covers the origin of key fault gases, oil sampling procedures, laboratory gas chromatography, interpretation of gas concentrations, trending, gas ratio diagnostic methods, and the application of IEEE and IEC standards. You'll also learn how online DGA monitoring systems enhance transformer reliability by providing continuous condition monitoring.

By the end of this course, you'll understand how dissolved gas analysis is used to detect partial discharge, overheating, arcing, and insulation degradation, allowing maintenance teams to make informed decisions that improve transformer reliability and reduce unplanned outages.