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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Asai, D. Kurimoto, M. Komori, F. Kato, T. Funabashi, T. Suzuoki, Y. |
| Copyright Year | 2014 |
| Description | Author affiliation: Nagoya Univ., Nagoya, Japan (Asai, D.; Kurimoto, M.; Kato, T.; Funabashi, T.; Suzuoki, Y.) || Nat. Inst. of Technol., Toba Coll., Toba, Japan (Komori, F.) |
| Abstract | In order to improve the accuracy of degradation diagnosis for CV power cables, it is important to clarify the inception and propagation mechanisms of electrical tree degradation from water tree degradation. This paper presents the influence of AC voltage prestressing on the inception voltage of AC electrical-tree in the deteriorated LDPE with dried water-tree. The experiment was carried out with a small LDPE-block (3 mm×10 mm×15 mm) with the needle-plane electrode system, in which the inception voltage of AC electrical-tree of LDPE without water tree was from 5 $kV_{rms}$ to $8kV_{rms}.$ The prestressing conditions, i.e. the ambient temperature, the voltage amplitude and the voltage duration time, were varied. The results suggest that the degradation under AC voltage application is enhanced by the existence of water-tree degradation and affects AC electrical-tree inception. |
| Starting Page | 385 |
| Ending Page | 388 |
| File Size | 2650076 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781479975259 |
| DOI | 10.1109/CEIDP.2014.6995749 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-10-19 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Trees - insulation Degradation Needles Electrodes Voltage measurement Optical filters Partial discharges |
| Content Type | Text |
| Resource Type | Article |
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