Partial discharge patterns and surface deterioration in voids in filled and unfilled epoxy

Joachim Holbøll, Mogens Henriksen

Research output: Contribution to journalConference articleResearchpeer-review

509 Downloads (Pure)

Abstract

Results are presented from analyses of pulses from partial discharges (PDs) in single spherical voids in filled and unfilled epoxy plastic and related to the observed surface deterioration. The filler types used were dolomite, alumina, and silica. Long-time aging tests including pulse phase/height analyses were performed over a period of 2400 h and showed very characteristic discharge patterns for each material combination. A unique behavior with regard to changes of pulse repetition rate and maximum apparent charge was observed for PD in alumina- and silica-filled epoxy. The void surfaces were investigated by scanning electron microscopy for voids exposed to PD as well as voids without discharges. Different kinds of surface deterioration were found. An attempt was made to establish a relationship between aging phenomena as exhibited by void surface changes and discharge patterns
Original languageEnglish
JournalI E E E International Symposium on Electrical Insulation. Conference Record
Pages (from-to)354-358
ISSN0164-2006
DOIs
Publication statusPublished - 1992
Event1992 IEEE International Symposium on Electrical Insulation - Baltimore, MD, United States
Duration: 7 Jun 199210 Jun 1992
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=654

Conference

Conference1992 IEEE International Symposium on Electrical Insulation
CountryUnited States
CityBaltimore, MD
Period07/06/199210/06/1992
Internet address

Bibliographical note

Copyright: 1992 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

Fingerprint Dive into the research topics of 'Partial discharge patterns and surface deterioration in voids in filled and unfilled epoxy'. Together they form a unique fingerprint.

Cite this