What is the analysis of transformer oil in power transformers?

The analysis of transformer oil in power transformers involves assessing its chemical and physical properties to ensure optimal performance and longevity. Key tests include dissolved gas analysis (DGA) to detect potential faults, moisture content measurement to evaluate insulation integrity, and furan analysis to assess paper insulation degradation. Regular analysis of transformer oil helps in predictive maintenance, identifying issues before they lead to transformer failure, thereby enhancing reliability and efficiency.