What is the unit for measuring dielectric strength in transformer oil?

The unit for measuring dielectric strength in transformer oil is typically expressed in kilovolts per millimeter (kV/mm). This measurement indicates the ability of the transformer oil to withstand electrical stress without breaking down. To accurately assess the dielectric strength of transformer oil, using appropriate testers like the Globecore’s dielectric strength tester is essential, as it ensures reliable diagnostics and maintains the quality of industrial oils over time.