What is BDV testing of transformer oil?
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August 15, 2024 at 7:07 am by Daniel Walker
BDV (Breakdown Voltage) testing of transformer oil measures the oil’s dielectric strength, or its ability to withstand electrical stress without breaking down. The test involves applying a gradually increasing voltage to the oil sample until it breaks down, indicating the voltage level at which the oil can no longer provide effective insulation. High BDV values indicate good insulating properties, while low values suggest contamination or degradation.