Effects of Thermal Aging on Moisture Diffusion in Insulation Paper Immersed with Mineral Oil
Article
Article Title | Effects of Thermal Aging on Moisture Diffusion in Insulation Paper Immersed with Mineral Oil |
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ERA Journal ID | 4449 |
Article Category | Article |
Authors | Wang, Dongyang (Author), Zhou, Lijun (Author), Wang, An (Author), Li, Huize (Author), Liao, Wei (Author), Guo, Lei (Author) and Cui, Yi (Author) |
Journal Title | IEEE Transactions on Dielectrics and Electrical Insulation |
Journal Citation | 25 (5), pp. 1888-1896 |
Number of Pages | 9 |
Year | 2018 |
Publisher | IEEE (Institute of Electrical and Electronics Engineers) |
Place of Publication | United States |
ISSN | 1070-9878 |
1558-4135 | |
Digital Object Identifier (DOI) | https://doi.org/10.1109/TDEI.2018.007239 |
Web Address (URL) | https://ieeexplore.ieee.org/document/8484902 |
Abstract | Thermal aging of insulation paper has obvious effects on its moisture absorption property. The presented studies aim to investigating the effects of aging on moisture diffusion in oil-immersed insulation paper. Based on the experimental designs and preparation of experimental materials, the transient moisture contents of insulation paper with different aging status were obtained at different conditions. Then, the experimental results were discussed. Furthermore, the diffusion factors and equilibrium time constants were extracted based on the model of moisture diffusion in oil-immersed insulation paper, which are applicable to our studies. Finally, the effects of thermal aging on the diffusion factor and equilibrium time constant were analyzed. The results show that: 1) With the aging of insulation paper, the rate of moisture absorption increases, and the equilibrium moisture content of insulation paper decreases at the same temperature. Besides, the equilibrium time constant decreases with aging at the same temperature. 2) Considering the effects of aging, thickness of insulation paper and temperature, the empirical expression of diffusion factor was obtained and verified. |
Keywords | diffusion factor; equilibrium time constant; insulation paper; moisture diffusion; thermal aging |
ANZSRC Field of Research 2020 | 400803. Electrical energy generation (incl. renewables, excl. photovoltaics) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Southwest Jiaotong University, China |
University of Tennessee, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7w21/effects-of-thermal-aging-on-moisture-diffusion-in-insulation-paper-immersed-with-mineral-oil
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