Dissolved gas analysis of liquid insulation under ac and impulse breakdown voltage tests

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dc.contributor.authorPattanadech, Norasage
dc.contributor.authorLukin, Kanchanaporn
dc.contributor.authorSamerpak, Chantapapa
dc.contributor.authorChumninuan, Nattakrit
dc.contributor.authorPiyapatamin, Nadpakul
dc.contributor.authorSatirapattanakiat, Kanin
dc.contributor.authorAtthaphotpong, Kittiphot
dc.contributor.authorJongvilaikasem, Korraya
dc.date.accessioned2026-08-06T10:25:04Z
dc.date.available2026-08-06T10:25:04Z
dc.date.issued2019-07-01
dc.description.abstractThis paper represents the study of dissolved gas analysis in mineral oil compared with natural ester (FR3) under AC and impulse breakdown voltage tests. Liquid insulation was heated at 60°C with 200 mbar for 12 hours. Liquid test samples were divided into three groups. The first group was tested with AC voltage using the spherical electrodes with the gap distance of 1.0, 1.5, and 2.0 mm. The AC test procedure was in accordant with IEC 60156. The second and the third group of liquid samples was tested with standard positive lightning impulse and standard negative lightning impulse voltage using the needle - sphere electrode with the distance of 10, 15, and 20 mm. The impulse test procedure was according to IEC 60897. Testing experiments were performed 5, 10, and 15 times consecutively for each test sample. Then dissolved gas analysis of each test sample was performed. From the test results, the type of breakdown voltage and the number of breakdowns effected on the quantity of the dissolved gas in the liquid insulation.
dc.identifier.citationProceedings of the 16th International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology Ecti Con 2019, 353-356, 2019
dc.identifier.doi10.1109/ECTI-CON47248.2019.8955419
dc.identifier.other2-s2.0-85078817027
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/9988
dc.sourceProceedings of the 16th International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology Ecti Con 2019
dc.subjectAc breakdown voltage
dc.subjectDga
dc.subjectImpulse breakdown voltage
dc.subjectMineral oil
dc.subjectNatural ester
dc.titleDissolved gas analysis of liquid insulation under ac and impulse breakdown voltage tests
dc.typeConference Paper

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