Development of low-permittivity pressboard and its evaluation for insulation of oil-immersed EHV power transformers

Kamata, Y.; Ohe, E.; Endoh, Kazuhiro; Furukawa, S.; Tsukioka, Hideo; Maejima, Masaaki; Fujita, Hiroyuki; Nozaki, Masaoki; Ishizuka, Fumihiko; Hyohdoh, Kenji

doi:10.1109/14.83708

Public

Development of low-permittivity pressboard and its evaluation for insulation of oil-immersed EHV power transformers

Published in IEEE Transactions on Electrical Insulation • Jan 1, 1991

Authors:

Y. Kamata

E. Ohe

Kazuhiro Endoh

Abstract

The development of a low-permittivity pressboard obtained by blending polymethylpentene fiber with cellulose fiber is described. The permittivity is 3.5, which is lower than that of conventional pressboard. With this pressboard, insulating characteristics of intercoil models were investigated under ...

Subject

Pressboard

Permittivity

Composite material

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