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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Liu, Rongsheng Bergkvist, Mikael Jeroense, Marc |
| Copyright Year | 2007 |
| Description | Author affiliation: ABB AB, Corporate Research, 721 78 Västerå, Sweden. E-mail: rongsheng.liu@se.abb.com (Liu, Rongsheng) || ABB Power Systems, High Voltage Cables, 371 23 Karlskrona, Sweden (Bergkvist, Mikael; Jeroense, Marc) |
| Abstract | Moisture is one of the parameters which might have an effect on the space-charge distribution in an extruded insulation system under DC voltage. Investigation into their relationship is of importance for gaining insight into the conduction and breakdown mechanisms of insulation materials. In this study, a specially manufactured lab sample in the form of an extruded cable has been aged in tap water for 3 years under DC voltage. Space charge measurements were made using the PEA (pulsed electro-acoustic) method. These measurements were performed before, during and after the wet ageing. Limited hetero-charge was observed in the vicinity of insulation screen / insulation interface. Both negative and positive DC voltages have been examined. The cable survived the 3-year-long wet ageing without breakdown. |
| Starting Page | 438 |
| Ending Page | 441 |
| File Size | 2170403 |
| Page Count | 4 |
| File Format | |
| ISBN | 1424407508 |
| DOI | 10.1109/ICSD.2007.4290845 |
| 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 Power cables Aging Power cable insulation Voltage Electric breakdown Pulse measurements Moisture Conducting materials Manufacturing |
| Content Type | Text |
| Resource Type | Article |
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