How is the breakdown voltage of transformer oil tested?
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September 10, 2024 at 4:30 pm by Yara Haddad
Breakdown voltage testing of transformer oil is conducted using a specific procedure that involves measuring the oil’s electrical insulating properties. The method typically requires a breakdown voltage tester, which applies a controlled voltage to the oil sample until dielectric breakdown occurs, indicated by a spark or arc. During the test, the oil is usually placed between two electrodes within a reactor, and the voltage is gradually increased at a defined rate. This testing assesses the oil’s ability to withstand electrical stress and helps determine its insulation quality. It’s essential to follow standardized testing methods, such as ASTM D877 or IEC 60156, to ensure accurate and reliable results. Globecore offers modern testers designed specifically for determining the breakdown voltage of transformer oil, ensuring compliance with industry standards while providing efficient and precise measurements.
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