Breakdown strength of vegetable-based oils under AC and lightning impulse voltages

The breakdown strength of vegetable-based oil (VBO) and mineral oil is compared by means of experimental determination of breakdown voltage. These oils were tested under AC and positive lightning impulse voltages for uniform and non-uniform electrical field. The oil gap varied from 2 mm up to 85 mm....

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Bibliographic Details
Published in2011 IEEE International Conference on Dielectric Liquids pp. 1 - 4
Main Authors Vukovic, D., Tenbohlen, S., Harthun, J., Perrier, C., Fink, H.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2011
Subjects
Breakdown voltage
Electric breakdown
Electrodes
mineral oil
Minerals
Pollution measurement
Power transformers
Vegetable oils
Vegetable-based oil
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Summary:The breakdown strength of vegetable-based oil (VBO) and mineral oil is compared by means of experimental determination of breakdown voltage. These oils were tested under AC and positive lightning impulse voltages for uniform and non-uniform electrical field. The oil gap varied from 2 mm up to 85 mm. The results show same or higher AC breakdown strength of VBO compared to mineral oil for small gaps and uniform electrical field, whereas for lightning impulses and non-uniform field breakdown strength of VBO is reduced.
ISBN:1424473527
9781424473526
ISSN:2153-3725
2153-3733
DOI:10.1109/ICDL.2011.6015468