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논문 기본 정보

자료유형
학술저널
저자정보
Bella Eliana (Korea National University of Transportation) Dewimaruto Ratri (Korea National University of Transportation) 오승희 (Korea National University of Transportation) 박영훈 (Korea National University of Transportation) 강형구 (Korea National University of Transportation)
저널정보
한국조명·전기설비학회 조명·전기설비학회논문지 조명·전기설비학회논문지 제34권 제12호
발행연도
2020.12
수록면
37 - 44 (8page)
DOI
10.5207/JIEIE.2020.37.12.037

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Cross linked polyethylene (XLPE) has been widely used for power cables as an insulation material due to its excellent dielectric and mechanical characteristics. However, XLPE can not be recycled after the lifetime of power cables because of its thermosetting property. In many countries, power cables have been developed and installed actively since 1970. It means that the lifetime of power cables is reaching over 50 years. It is known that the lifetime of power cables is around 50 years. Therefore, many power cables in a power grid installed in 1970s should be replaced with new power cables in order to improve the reliability of a power system. In this replacement, there are many studies to change thermosetting materials, XLPE into thermoplastic materials, polypropylene (PP) which can be recycled. This paper deals with the analysis on the dielectric degradation characteristics of PP according to white rust. White rust may occur in power cables due to curvature and scratch which could be caused by bending stress and friction. Especially bending stress is inevitable because of narrow installation area and process of installation. The dielectric degradation characteristics of PP are analyzed under AC as well as lightning impulse voltage test. It is found that the dielectric degradation characteristics of PP according to white rust is more degraded at lightning impulse voltage test than AC voltage test.

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Abstract
1. 서론
2. 실험
3. 실험결과 분석
4. 결론
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