Comparative Analysis of Measurement Methods for Partial Discharges Generated on the Surface of Solid Dielectrics in Insulating Oil

The article presents the results of partial discharge measurements using the UHF method and the conventional electric method, which were carried out in a model system of electrodes for generation of surface discharges on a solid dielectric immersed in mineral oil. Two model systems were analyzed; in the first system, a teflon plate was used as a solid dielectric and in the second system a pressboard plate was used. The measurements were carried out in laboratory conditions for alternating voltage.