In this study, the electrical aging of 15 kV Ethylene Propylene Rubber (EPR) power cables, located in PVC pipes containing water, was conducted by ac voltage with switching impulses superimposed. The experiments provided a better understanding of the electrical aging phenomenon of EPR cable insulation. They also helped to assess the reliability of EPR cables used under such circumstances. EPR cable insulation was aged by rated ac voltage with switching impulses superimposed. The experiments also examined the degradation of EPR insulation by elevated ac voltage with switching impulses superimposed. Partial discharge parameters, capacitance and dissipation factor were measured at subsequent intervals during the aging process so as to understand the factors affecting aging process. After completion of the aging study, the remaining dielectric strength of tested cables was evaluated by ac breakdown voltage measurement.
| Identifer | oai:union.ndltd.org:MSSTATE/oai:scholarsjunction.msstate.edu:td-2844 |
| Date | 06 August 2011 |
| Creators | Zanwar, Anand Umeshlal |
| Publisher | Scholars Junction |
| Source Sets | Mississippi State University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
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