What is Dissolved Gas Analysis (DGA) ?Dissolved Gas Analysis (DGA) DefinitionDissolved gas analysis of transformer oil is a technique to study gases produced under thermal and electrical stress in transformers.Gas Extraction MethodsUsing specialized equipment, gases are extracted and analyzed to diagnose the internal condition of a transformer.Indicative GasesCertain gases like hydrogen, methane, and ethylene signify specific types of thermal stresses based on their amounts and presence.CO and C