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

The procedure for transformer oil testing in a lab typically involves sampling the oil, followed by various analyses. Key parameters evaluated include dielectric strength, moisture content, acidity, dissolved gas analysis (DGA), and furan analysis. These tests assess the oil’s insulation properties, contamination levels, and overall condition, ensuring the transformer operates efficiently and safely. Proper sampling techniques and adherence to ASTM standards are crucial for accurate results.