What are the standard parameters for breakdown voltage of transformer oil?

The standard parameters for breakdown voltage of transformer oil typically range between 30 kV and 70 kV, with a minimum acceptable value often set at 30 kV for new oil. The breakdown voltage is a critical measure as it indicates the oil’s insulating properties under electrical stress. Regular testing using devices such as Globecore’s oil breakdown voltage testers ensures that transformer oil maintains its effectiveness in preventing electrical failures. Proper maintenance and monitoring of breakdown voltage are essential for ensuring the reliability and safety of transformer operations, adhering to industry standards.