What is TDCG in transformer oil?

TDCG in transformer oil refers to “Total Dissolvable Carbonaceous Grease,” which is a measure of the total carbon content dissolved in the transformer oil that can affect its performance and the transformer’s efficiency. This parameter is vital in evaluating the condition of transformer oil, as a higher TDCG level may indicate degradation of the oil or the presence of contaminants. It’s important to regularly monitor and manage TDCG in transformer oil to ensure optimal insulation properties and prevent premature failure of electrical equipment. Regular testing, cleaning, and regeneration of transformer oil can help maintain lower TDCG levels, thereby enhancing the reliability and longevity of transformers.