Dynamic space charge behaviour in polymeric DC cables

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2002

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The use of extruded insulation for DC cables involves a risk of local electric field enhancement, caused by a space charge build-up within the dielectric. In this work, the theory of charge generation and transport in polymers is applied in a numerical computer model in order to predict the formation and transport of space charges in a polymeric dielectric. The model incorporates the processes of field assisted electron-hole pair generation from impurity atoms, trapping and charge injection at the electrodes. Its aim has been to study the field- and temperature dependent dynamic behaviour of a dielectric. Results obtained using this model-based framework are compared to measurement results obtained from Laser Induced Pressure Pulse (LIPP) space charge measurements as well as conductivity measurements on selected cable type samples.
Original languageEnglish
TitleProceedings of the 11. International Symposium on Electrets
PublisherIEEE
Publication date2002
Pages23-26
ISBN (print)0-7803-7560-2
DOIs
StatePublished

Conference

Conference11. International Symposium on Electrets
Number11
CityMelbourne, Australia
Period01/01/02 → …
CitationsWeb of Science® Times Cited: No match on DOI

Keywords

  • Space charge, Dielectric measurements, Charge measurement, Dielectrics and electrical insulation, Cable insulation, Current measurement, Polymers, Pulse measurements, Pressure measurement, Conductivity measurement
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