What are the technical aspects of breakdown strength of transformer oil?

The breakdown strength of transformer oil is a critical parameter that indicates its insulating properties. It is primarily influenced by factors such as the oil’s purity, moisture content, temperature, and the presence of particulate matter. Breakdown strength is typically measured in kilovolts per millimeter (kV/mm) and is essential for ensuring reliable transformer operation. High breakdown strength minimizes the risk of electrical discharges, thereby enhancing the overall performance and longevity of power transformers. Regular testing and maintenance are crucial to maintaining optimal breakdown strength.