What is the interpretation of dissolved gas analysis of transformer oil?

The interpretation of dissolved gas analysis of transformer oil involves assessing the concentration of various gases dissolved in the oil, such as hydrogen, methane, ethylene, and acetylene. This analysis helps identify potential issues within the transformer, such as overheating, arcing, or insulation breakdown. By monitoring these gas levels, maintenance can be scheduled proactively, enhancing the reliability and lifespan of the power transformer.