DOI: https://doi.org/10.15802/etr.v0i6.24344

Optimization of high-voltage electric field of polymer bushing insulator

Е. Д. Ким

Abstract


Development of high voltage bushings using polymeric dielectric materials due to low specific energy in their production and resistance to mechanical stress compared with porcelain insulators. However, there is the problem of early failure of polymeric insulators due to insulation breakdown, which requires the search for constructive and technological ways to improve the internal electrical resistance.

The results of an analytical study of the high-voltage electric field of the output insulator polymer insulated multilayer models of cylindrical and plane-parallel capacitors, as well as numerical solutions of the Laplace equation for the conduction of a comprehensive consideration of areas. The optimal ratio between the geometric parameters and dielectric properties of composite materials insulator elements for minimum criteria for the highest field strength at the surface of the conductor. Shown the possibility of significant damping of the edge effect of the field on the side of the torus samples flange execution profile ends with a large radius of curvature along the lines of the Rogowski electrode. Practical recommendations for equalizing the distribution of the field intensity at the flange introduction shielding electrode by applying a conductive coating on the outer surface of the bearing sleeve insulator, provide a rationale for the best places locations of the coating and its length relative to the flange.

Keywords


insulator; polymer; electric field; failure; technology; cover

References


Гордон, Дж. Конструкции, или почему не ломаются вещи [Текст] / Дж. Гордон. - М.: Издательство "Мир", 1980. - 327 с.

Ким Е.Д., Назаренко А.В., Карюк Д.Г. Исследование электрического поля высоковольтного проходного изолятора с полимерной изоляцией [Текст] / Е.Д. Ким, А.В. Назаренко, Д.Г. Карюк // Вестник ХГПУ «ХПИ».- 2013.- Выпуск 17.- с. 93-99.

Техника высоких напряжений. [Текст] под ред. М.В. Костенко. – М.: «Высшая школа». – 1973. – 528 с.

Патент RU(11)2423765(13)C1(51). Способ подбора профиля поверхности электродов для высоковольтных разрядников. Юрьев А.Л., Николаев Д. П., Эльяш С.Л. – 2006.

REFERENCES

Gordon. Dzh. Konstruktsii, ili pochemu ne lomayutsya veshchi [Design, or why do not break things]. Moscow, Mir Publ., 1980. 327 p.

Kim E.D., Nazarenko A.V., Karyuk D.G. Issledovanie elektricheskogo polya vysokovol'tnogo prokhodnogo izolyatora s polimernoy izolyatsiey [Research of the electric field of high voltage bushing polymer insulated]. Vestnik Khar'kovskogo gosudarstvennogo politekhnicheskogo universiteta [Bulletin of Kharkov State Polytechnic University], 2013, no 17, pp. 93-99.

Kostenko M.V. Tekhnika vysokikh napryazheniy [Technics of high pressure]. Moscow, Vysshaya shkola Publ. 1973. 528 p.

Yur'ev A.L., Nikolaev D.P., El'yash C.L. Sposob podbora profilya poverkhnosti elektrodov dlya vysokovol'tnykh razryadnikov [The method of selection of the surface profile of electrodes for high-voltage ar-resters.]. Patent no RU(11)2423765(13)C1(51).


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