{"title":"Polarization phenomena in cross-linked polyethylene (XLPE) containing water-trees","authors":"D. Das-Gupta, J. Densley","doi":"10.1109/CEIDP.1989.69550","DOIUrl":null,"url":null,"abstract":"The authors report preliminary results of a polarization study using thermally stimulated discharge current (TSDC) measurements and the thermal current transient technique on XLPE (cross-linked polyethylene) samples in which water trees have been grown. A schematic representation of the observed current transients at the onset or removal of a step input of thermal radiation is shown. Values of the peak thermal transient current I/sub p/ of control samples and aged samples after poling at 6.14*10/sup 6/ Vm/sup -1/ and after the TSDC runs are given. It may be observed that the I/sub p/ value increases by two orders of magnitude after aging of 472.2 h followed by a DC poling at a field of 6.14*10/sup 6/ Vm/sup -1/. In addition, the TSDC spectra for (unaged) control samples and samples in which water trees have been grown are shown. It is observed that the dominant TSDC peak at 80 degrees C increases significantly for samples with increasing aging time.<<ETX>>","PeriodicalId":10719,"journal":{"name":"Conference on Electrical Insulation and Dielectric Phenomena,","volume":"4612 1 1","pages":"224-229"},"PeriodicalIF":0.0000,"publicationDate":"1989-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference on Electrical Insulation and Dielectric Phenomena,","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CEIDP.1989.69550","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
The authors report preliminary results of a polarization study using thermally stimulated discharge current (TSDC) measurements and the thermal current transient technique on XLPE (cross-linked polyethylene) samples in which water trees have been grown. A schematic representation of the observed current transients at the onset or removal of a step input of thermal radiation is shown. Values of the peak thermal transient current I/sub p/ of control samples and aged samples after poling at 6.14*10/sup 6/ Vm/sup -1/ and after the TSDC runs are given. It may be observed that the I/sub p/ value increases by two orders of magnitude after aging of 472.2 h followed by a DC poling at a field of 6.14*10/sup 6/ Vm/sup -1/. In addition, the TSDC spectra for (unaged) control samples and samples in which water trees have been grown are shown. It is observed that the dominant TSDC peak at 80 degrees C increases significantly for samples with increasing aging time.<>
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