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XLPE 절연체에서의 열이력에 의한 전기, 물리적 특성 평가
이상진(Sang-Jin Lee),심성익(Sung-Ik Shim),전승익(Seung-Ik Jeon) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.5
The aim of this study is to find out the effects of thermal aging condition on dielectric strength and degree of crtstallinity of XLPE insulation. Thermal properties of XLPE insulation were investigated by DSC(differential scanning calorimetry) and dielectric strength were analyzed using AC BDV tester. Aging of XLPE samples were conducted through different four conditions. The degree of crystallinity and AC BDV were changed by thermal history. From these results, it can be suggested that DSC and AC BDV test are suitable for diagnostic method of extra high voltage XLPE cable.
김남열(Nam-Yul Kim),김성윤(Sung-Yun Kim),채병하(Byung-Ha Chae),최진욱(Jin-Wook Choi),전승익(Seung-ik Jeon),권영국(Young-Gug Kwun) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
154㎸ 3core XLPE submarine cable transmission system was used supply power from mainland to island and connect to the grid of off-shore wind farm. This submarine cable system consists of the three core XLPE cables , fiber-optic submarine cable for telecommunication, flexible joint for factory joint, joint box for field repair joint and termination. The termination for land cable were used for this test. Therefore In this paper 3 core XLPE submarine cable, repair flexible joint for power cable and fiber optic cable joint was described. In order to verify the mechanical and electrical performances for cable and joint, the test was carried out. The mechanical test and electrical test were performed for the 3 core submarine cable and one rigid joint box for three core cable and fiber-optic cable in accordance with CIGRE recommendations(Electra No.171) and IEC 60840. The test results showed that they had sufficient properties and reliability.