Clean Power

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The National Academy of Sciences of Ukraine

The Institute of Electrodynamics

About Institute



I.M. Kucheriava
Institute of Electrodynamics of the National Academy of Sciences of Ukraine,
Peremohy, 56, Kyiv-57, 03680, Ukraine,
е-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

The electric field distribution in the polyethylene insulation with typical micro-sized inclusions (such as simplified water tree branches, organic and inorganic, single and numerous contaminants) is studied by two- and three-dimensional computer modeling. The local field enhancement near the inclusions and their effect on each other are shown. The field enhancement factor is determined for various single contaminants both by numerical computation and by analytical expression. As revealed, the field distribution in the insulation depends on the electrical properties, shape and relative position of micro-inclusions. The results of the work should help to extend the knowing about the causes of polyethylene destruction as applied to insulation of up-to-date high-voltage power cables. References 15, figures 5, tables 2.
Key words: polyethylene insulation, water treeing, micro-inclusions, contaminants, electric field, computer modeling.

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