BDV (Breakdown Voltage) testing of transformers is a crucial procedure used to assess the dielectric strength of the transformer's insulating oil. This test determines the oil's ability to withstand high voltage without breaking down, ensuring the transformer’s insulation remains effective under normal operating conditions. The BDV test involves applying an increasing voltage to a sample of oil until it breaks down, with the breakdown voltage recorded as a measure of the oil's quality. Regular BDV testing helps detect contamination, moisture, or degradation in the oil, which can lead to transformer failure. It is essential for maintaining safety, reliability, and performance in power systems.
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