Influence of Absorbed Water and Temperature on Tan Delta and Dielectric Constant of Oil-Impregnated Paper Insulation
- 1 April 1962
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems
- Vol. 81 (3) , 93-98
- https://doi.org/10.1109/aieepas.1962.4501273
Abstract
Tan δ and dielectric constant at several temperatures and stresses of an oil-impregnated 0.95 density paper, suitable for use in extra-high-voltage cables, are related quantitatively to water content m from 0.08 to 4.82%. At 100 C (degrees centigrade), 100 tan δ=0.24+1.44 m2, tribution of hydrogen and hydroxyl ions from the water. At 22 C, small amounts of water have a linear effect on tan δ, a relation believed to result from the water plasticizing the cellulose. In the range 22 to 100 C, k'=3.8+0.41 m.Keywords
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