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

The procedure for transformer oil testing kits involves sampling the oil, followed by laboratory analysis. Key parameters evaluated include dielectric strength, moisture content, acidity, dissolved gas analysis (DGA), and furan analysis. Dielectric strength assesses insulation quality, 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.