How is a transformer dielectric strength test conducted?
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September 7, 2024 at 9:27 am by Jessica Mitchell
A transformer dielectric strength test is conducted using a transformer oil bdv tester, which is designed to assess the breakdown voltage of insulating fluids in transformers. The process involves taking a sample of the transformer oil and placing it in a test cell, where two electrodes are immersed in the oil. The tester then applies a gradually increasing AC voltage to the electrodes until a dielectric breakdown occurs. The maximum voltage reached before the oil breaks down is recorded as the breakdown voltage, which is a critical measure of the oil’s insulating properties. It is essential to perform this test in accordance with relevant standards and conditions, such as temperature and cleanliness, to ensure accurate and reliable results. Proper calibration of the transformer oil bdv tester is also necessary for consistent outcomes.
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