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dc.contributor.authorHestad, Øystein Leif Gurandsrud
dc.contributor.authorAakre, Torstein Grav
dc.contributor.authorLundgaard, Lars Esben
dc.description.abstractThis paper describes measurements of conduction currents in both neat and commercial insulating liquids. Conduction in thermodynamic equilibrium has been measured by applying a low ac voltage in a uniform field. High-field pre-discharge currents have been measured in a needle-to-plane configuration stressed with respectively high voltage ac and steep step high voltage pulses. There was significantly increased conduction for high field compared to low field conditions. Notably, measurements at high fields in needle-plane configurations indicate space charge limitation of currents with polarity differences. The high field conduction exhibited considerable variation across different liquids. At high applied fields, electronic processes are probably governing the charge formation. Simulations indicate that space charges may reduce the local field in front of needle tips at time scales relevant for propagating streamers.en_US
dc.description.abstractConduction and Electric Fields in Dielectric Liquids in Needle-to-Plane Gapsen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleConduction and Electric Fields in Dielectric Liquids in Needle-to-Plane Gapsen_US
dc.title.alternativeConduction and Electric Fields in Dielectric Liquids in Needle-to-Plane Gapsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holderThe Authors hold the copyright to the Author Accepted Manuscript. Distributed under the terms of the Creative Commons Attribution License (CC BY 4.0)en_US
dc.source.journalIEEE transactions on dielectrics and electrical insulationen_US
dc.relation.projectNorges forskningsråd: 294508en_US

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal