Identification of Simultaneously Active Partial Discharge Sources Using Passive Comparison Techniques

TitleIdentification of Simultaneously Active Partial Discharge Sources Using Passive Comparison Techniques
Publication TypeConference Paper
Year of Publication2009
AuthorsReid, A, Judd M
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 explores the feasibility of a new PD source recognition technique that utilises passive comparison of UHF signals from an array of sensing elements to provide some information on the position and number of PD sources present. The measurement principle is based on forming phase-coherent sum and difference channels between signals from a pair of sensors. If the proposed technique proves effective, comparison of UHF signals in this way could be implemented using relatively inexpensive hardware. Its implementation may therefore be economically viable on a wider range of HV equipment than conventional UHF PD location systems.