What tests does a transformer oil analysis laboratory perform?

A transformer oil analysis laboratory performs several critical tests to assess the condition of transformer oil. These include dielectric strength testing to measure insulation properties, moisture content analysis to determine water levels, dissolved gas analysis (DGA) to detect potential faults, and acidity tests to evaluate oil degradation. Additionally, laboratories may conduct particle count tests to assess contamination and furan analysis to evaluate insulation paper condition, ensuring the transformer’s reliability and longevity.