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

The procedure for transformer oil testing in labs typically involves sampling the oil, followed by a series of standardized tests. Key parameters evaluated include dielectric strength, moisture content, acidity, dissolved gas analysis (DGA), and furan analysis. These tests assess the oil’s insulating properties, contamination levels, and overall condition, ensuring the transformer operates efficiently and safely. Regular testing helps in predictive maintenance and prolongs transformer lifespan.