Water uptake rates of transformer paper insulation impregnated with vegetable oil

Martin, Daniel, Lelekakis, Nick, Wijaya, Jaury and Williams, Kerry (2013) Water uptake rates of transformer paper insulation impregnated with vegetable oil. IEEE Electrical Insulation Magazine, 29 5: 56-61. doi:10.1109/MEI.2013.6585857

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Author Martin, Daniel
Lelekakis, Nick
Wijaya, Jaury
Williams, Kerry
Title Water uptake rates of transformer paper insulation impregnated with vegetable oil
Journal name IEEE Electrical Insulation Magazine   Check publisher's open access policy
ISSN 0883-7554
Publication date 2013-09
Sub-type Article (original research)
DOI 10.1109/MEI.2013.6585857
Volume 29
Issue 5
Start page 56
End page 61
Total pages 6
Place of publication Piscataway, NJ, United States
Publisher Institute of Electrical and Electronics Engineers
Collection year 2014
Language eng
Formatted abstract
Vegetable oil–based dielectrics have been available for the past 15 years; relevant articles have been published. One practical advantage of using a vegetable-oil dielectric in a power transformer is its higher affinity to moisture, around 20 times higher than that of mineral oil at room temperature. Power transformers containing vegetable oil are usually sealed, preventing water ingress from the air. However, during manufacture, installation, or servicing, the transformer cellulose structure is likely to be exposed to the air.

The rate at which a vegetable oil absorbs moisture from the air, and hence the time for which transformer paper insulation impregnated with a vegetable oil dielectric can be exposed to air before it becomes too wet to function satisfactorily, is of considerable interest to power utilities. In this article we compare the water uptake rates of insulation paper impregnated with FR3 vegetable oil with the corresponding rates for mineral oil.
Keyword Condition assessment
Condition monitoring
Oil insulation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
School of Information Technology and Electrical Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 3 times in Scopus Article | Citations
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Created: Fri, 20 Sep 2013, 09:15:22 EST by Daniel Martin on behalf of School of Information Technol and Elec Engineering