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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Pedersen, K. Sedding, H. Fenger, M. Holboell, J. Henriksen, M. |
| Copyright Year | 2006 |
| Description | Author affiliation: Orsted-DTU, Tech. Univ. of Denmark, Lyngby (Pedersen, K.) |
| Abstract | This paper deals with the application of frequency domain dielectric spectroscopy for the detection of water trees in XLPE cables. During the research, dielectric spectroscopy measurements have been carried out on cable samples with and without water trees while it was attempted to preserve many of the uncertainties present in the field. The experiments support the applicability of a high voltage test developed primarily at KTH in Sweden, which utilizes the nonlinearity of the dissipation factor. Subsequently it was investigated whether this high voltage method also seems reliable at low voltages. It turned out that the fundamentals of the high voltage method were not directly applicable at low voltages as the nonlinearity of the permittivity is not noticeable at low voltages, at least compared to the deviations. Instead a novel method for interpreting the low frequency measurements is proposed though it needs further verification. Finally a theoretically possible modification of the measurement system is proposed, which deals with the problem of a limited current capability of the amplifier |
| Sponsorship | IEEE Dielectrics and Electr. Insulation Soc |
| Starting Page | 509 |
| Ending Page | 514 |
| File Size | 369502 |
| Page Count | 6 |
| File Format | |
| ISBN | 1424403332 |
| ISSN | 1089084X |
| DOI | 10.1109/ELINSL.2006.1665368 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-06-11 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Laboratories Electrochemical impedance spectroscopy Aging Cables Trees - insulation Low voltage Frequency domain analysis Dielectric measurements Testing Permittivity |
| Content Type | Text |
| Resource Type | Article |
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