how to improve bdv of transformer oil?

To improve the breakdown voltage (BDV) of transformer oil, ensure proper filtration to remove contaminants such as water, particulate matter, and dissolved gases. Regularly monitor and maintain oil quality through testing and treatment processes like degassing and drying. Additionally, consider using additives that enhance the oil’s dielectric properties. Implementing these practices can significantly enhance the BDV, ensuring better insulation performance and reliability of the transformer.