What is the procedure for transformer oil testing equipment and what parameters are evaluated?

The procedure for transformer oil testing involves collecting a sample of the oil and analyzing it using specialized equipment. Key parameters evaluated include dielectric strength, moisture content, acidity, dissolved gas analysis (DGA), and furan analysis. Dielectric strength assesses insulation capability, while moisture content indicates potential degradation. Acidity measures oil degradation, DGA identifies fault gases, and furan analysis evaluates paper insulation condition. Regular testing ensures transformer reliability and longevity.