what is the value of dielectric strength of transformer oil?

The dielectric strength of transformer oil typically ranges from 30 to 50 kV per centimeter. This property indicates the oil’s ability to withstand electric fields without breaking down, making it essential for insulating and cooling transformers. High dielectric strength helps prevent electrical discharges and ensures the reliable operation of transformers in power systems. Regular testing of transformer oil is crucial to maintain its dielectric properties and overall performance.