Extension of Pulse-Sequence-Analysis for Evaluating Insulation PD Characteristics

TitleExtension of Pulse-Sequence-Analysis for Evaluating Insulation PD Characteristics
Publication TypeConference Paper
Year of Publication2009
AuthorsBruce, I, Brian S
Conference NameProceedings of the 44th International Universities Power Engineering Conference
Date PublishedSeptember
Conference LocationUniversity of Strathclyde
KeywordsDiagnostics and Measurements in Power Systems Partial discharges
Abstract

This paper presents the results obtained from a Pulse Sequence Analysis of captured data using an IEC60270 based detection system and three basic defect geometries, i.e. a needle and open plane, a needle and mica covered plane and a needle and polyethylene covered plane. Variations in the standard scatter plots obtained in each case for an increasing supply voltage are presented along with a novel 3D scatter plot representation which will be used to highlight further differences between the three test cases. The results from a detailed analysis of the relationship between supply cycle, discharge pulse amplitude and inter-pulse time differentials are also presented and used to suggest the influence of the charge dissipation for each test configuration.