what is the bdv of transformer oil?

The Breakdown Voltage (BDV) of transformer oil is a critical parameter that indicates the oil’s insulating strength. It measures the voltage at which the oil begins to conduct electricity, leading to potential failure of the transformer. A higher BDV value signifies better insulation properties, which is essential for the reliable operation of transformers. Regular testing of BDV helps in assessing the condition of the oil and the overall health of the transformer.