How is the breakdown voltage test of transformer oil performed?
Asked: August 26, 2024 at 12:31 pm by Ashley Hall
- This topic has 1 reply, 2 voices, and was last updated 9 months, 2 weeks ago by Amanda Moore.
Answers
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August 26, 2024 at 12:33 pm by Amanda Moore
The breakdown voltage test of transformer oil is performed by placing a sample of the oil in a test cell with two electrodes separated by a specified gap (usually 2.5 mm). The voltage is then gradually increased at a controlled rate until the oil breaks down and an arc forms between the electrodes. The voltage at which this occurs is recorded as the breakdown voltage. The test is usually repeated multiple times, and the average value is taken to determine the oil’s dielectric strength.
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