D I Kovalev, E M Voronkova and D V Golubev

National Research University «Moscow Power Engineering Institute», 14, Krasnokazarmennaya street, Moscow 111250, Russia

Abstract

The article considers the partial discharges impact on busbars of voltage class 20 kV. The composition of a new type insulation includes a dusty inert material, which contributes to an increase in electrical strength. As a result of the tests carried out, the amplitude of partial discharges was recorded. It did not exceed the standard values. Also, areas of partial discharges high-amplitude values were recorded less than busbars without filler.