What does the BDV test of transformer oil measure?
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August 26, 2024 at 12:23 pm by Sandra Green
The BDV (Breakdown Voltage) test of transformer oil measures the oil’s dielectric strength, which is its ability to withstand electrical stress without breaking down. During the test, a gradually increasing voltage is applied to the oil sample until it breaks down, or a spark occurs. A higher BDV value indicates that the oil has good insulating properties and is capable of effectively insulating the transformer’s internal components.
