What is the breakdown voltage of oil?

The breakdown voltage of oil refers to the maximum voltage that can be applied before the oil becomes conductive, leading to a breakdown of its insulating properties. This property is critical for insulating oils, such as transformer oil, as it indicates the oil’s ability to withstand electrical stress. In transformer oil, the dielectric strength test procedure is essential for determining this voltage. Generally, higher breakdown voltages indicate better quality insulating oil, ensuring reliable performance in electrical equipment. Regular testing is crucial to maintain the integrity of the insulation system and ensure safety in electrical applications.