Conference paper
Space charge build-up in XLPE-cable with temperature gradient
Space charge build-up in standard XLPE insulated AC cables has been studied under varying temperature and field conditions. The cables were triple-extruded with the inner semicon on a solid aluminum conductor, 5.5mm XLPE-insulation and an outer semicon. The cables were stressed up to 15kV/mm DC and temperatures were applied in the 20 - 80°C range with gradients across the insulation of up to 15°C.
In this paper, the observed charge phenomena in the bulk and at the interfaces are related to the external conditions, in particular to the temperature gradient. The measured space charge distributions are compared to calculated values, based on available conduction models and the deviations are discussed thoroughly.
| Language: | English |
|---|---|
| Year: | 2000 |
| Pages: | 157-160 |
| Proceedings: | Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on |
| ISBN: | 0780364139 and 9780780364134 |
| Types: | Conference paper |
| DOI: | 10.1109/CEIDP.2000.885251 |
| ORCIDs: | Holbøll, Joachim |
20 to 80 C 5.5 mm Aluminum Cable insulation Conductivity Conductors Current density Current measurement Pulse measurements Space charge Temperature Testing XLPE insulated AC cables XLPE insulation XLPE-cable cable testing conduction models inner semicon insulation testing interfaces outer semicon power cable insulation power cable testing solid aluminum conductor space charge space charge build-up space charge distributions temperature distribution temperature gradient
