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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Morshuis, Peter H.F. Bodega, Riccardo Fabiani, Davide Montanari, Gian Carlo Dissado, Len A. Smit, Johan J. |
| Copyright Year | 2007 |
| Description | Author affiliation: University of Bologna, Italy (Fabiani, Davide; Montanari, Gian Carlo) || Delft University of Technology, the Netherlands (Smit, Johan J.) || Prysmian Cables & Systems, the Netherlands (Bodega, Riccardo) || University of Leicester, United Kingdom (Dissado, Len A.) || Delft University of Technology, the Netherlands. E-mail: p.h.f.morshuis@tudelft.nl (Morshuis, Peter H.F.) |
| Abstract | Interfaces between dielectrics are considered one of the weakest parts of an insulation system but their behavior under electrical stress is not yet completely understood. In particular, when a dc voltage is applied, the electric field distribution at the interface is quite difficult to predict. This is mainly due to the accumulation of internal charge, which distorts the initial Laplacian field. To shed some new light on this topic, space charge measurements were performed on two types of coaxial XLPE-EPR interfaces. A numerical procedure, based on the Maxwell-Wagner theory for interfacial polarization, was developed for the estimation of the dynamic charge build-up at the interface. Experimentally obtained space charge profiles were compared to the calculated profiles. The limits of the Maxwell-Wagner model were assessed and the main parameters, which affect the interfacial polarization but which are not included in the model, were identified. |
| Starting Page | 450 |
| Ending Page | 453 |
| File Size | 1861624 |
| Page Count | 4 |
| File Format | |
| ISBN | 1424407508 |
| DOI | 10.1109/ICSD.2007.4290848 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-07-08 |
| Publisher Place | UK |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Space charge Polarization Dielectrics and electrical insulation Stress Voltage Laplace equations Distortion measurement Current measurement Charge measurement Performance evaluation |
| Content Type | Text |
| Resource Type | Article |
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