What are the transformer oil testing parameters for power transformers?

The transformer oil testing parameters for power transformers include several critical assessments. Key parameters are dielectric strength, moisture content, acidity, dissolved gas analysis (DGA), furan analysis, and oxidation stability. Dielectric strength measures the oil’s insulating capability, while moisture content indicates potential degradation. Acidity assesses the oil’s condition, and DGA helps identify faults. Furan analysis evaluates paper insulation degradation, and oxidation stability indicates the oil’s longevity under thermal stress.