What is the expected dielectric strength of transformer oil?

The dielectric strength of transformer oil is expected to be around 30 kV per centimeter (kV/cm) under normal operating conditions. However, this value can vary based on the oil’s purity, moisture content, and the presence of particles or contaminants. Regular testing with Globecore’s oil testers can help monitor and ensure that the dielectric strength remains within acceptable limits, which is crucial for the safe and efficient operation of transformers.