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Comparative Testing of Breakdown Voltage Versus Polarization Current of 0.6/1kV XLPE Cables with Different Defects
Author(s)
Date Issued
July 2, 2018
Type
Conference Paper
Abstract
In this paper, a study of breakdown voltage versus polarization current was performed comparatively to explore whether there was an existing of relationship between the two phenomena. The experiment was performed on low voltage \pmb{(0.6/1\mathrm{kV})} XLPE cables with three different cases of defect, case 1: conductor cladded with small and thin copper strip, case 2: conductor cladded with thin plastic ring, and case3: conductor cladded with plane paper strip. The results illustrated that breakdown voltage tends adversely to polarization current in all test cases. When the polarization current was increasing, the breakdown voltage was decreasing. Whereas the polarization current was decreasing, the breakdown voltage was increasing. It was also found that defective cable with thin copper strip has the lowest breakdown voltage whereas one with plane paper strip has the highest breakdown voltage.
Citation
Ieecon 2018 6th International Electrical Engineering Congress, 2018