What is furan analysis of transformer oil?

Furan analysis of transformer oil is a diagnostic technique used to assess the condition of paper insulation within transformers by measuring the presence of furan compounds. These compounds are byproducts of cellulose degradation when exposed to heat and moisture over time, indicating the reliability and remaining lifespan of the insulation system. By conducting furan analysis, one can identify potential insulation failures and maintenance needs, thereby ensuring the safe operation of transformers and preventing catastrophic failures. Regular monitoring through this analysis is essential in condition-based maintenance strategies for industrial transformer systems.