What is the procedure for transformer oil test laboratory and what parameters are evaluated?

The procedure for transformer oil testing in a laboratory involves several key steps: sampling, preparation, and analysis. First, a representative oil sample is collected. Then, tests are conducted to evaluate parameters such as dielectric strength, moisture content, acidity, dissolved gas analysis (DGA), and furan analysis. These parameters help assess the oil’s insulation properties, contamination levels, and overall condition, ensuring the transformer operates safely and efficiently.