• Title/Summary/Keyword: LS전선

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Effect of Temperature on Current Density of Nano Composite XLPE Material (나노복합체를 함유한 XLPE의 전류밀도에 미치는 온도의 영향)

  • Jung, Hyun-Jung;Yang, Yi-Seul;Nam, Jin-Ho;Nam, Gi-Joon;Kim, Dong-Wook
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.32 no.5
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    • pp.413-417
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    • 2019
  • In this study, the volume resistivity of XLPE materials with various voltage ratings was discussed. The volume resistivity of the developed XPLE nanocomposite was measured, and the conductivity mechanism of the material was also examined. The ASTM D 257 and IEC 60093 measurement methods were used for these tests. The equipment was designed to measure up to a temperature of $200^{\circ}C$, and the electrode structure was designed to maintain the thickness and temperature uniformity of the sample. The conductivity of the sample decreased with temperature, and the samples reached saturation within 500s, after which the conductivity leveled off. By analyzing the current density and the electric field, we can well explain the electric conductivity behavior of our sample with the Schottky mechanism.

A Study for Durability Test of Dynamic Power Cable under Marine Operating Environment Condition (동적 파워 케이블의 해양운용환경 내구성 검증시험에 관한 연구)

  • Shim, Chunsik;Kim, Chulmin;Rho, Yuho;Lee, Jaebok;Chae, Kwangsu;Song, Hacheol;Kim, Hokyeong;Bae, Chulmin;Wi, Sungkuk;Im, Kichen
    • Journal of the Society of Naval Architects of Korea
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    • v.58 no.1
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    • pp.49-57
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    • 2021
  • In the production power transmitting of a floating production system like a wind offshore floating, the power cable should be connected from the surface system into the subsea system. The connection between the surface and the subsea system will make the power cable get a dynamic load like current and wave forces. Based on this condition, a dynamic power cable is required to endure external physical force and vibration in the long-term condition. It needs more requirements than static power cable for mechanical fatigue properties to prevent failures during operations in marine environments where the external and internal loads work continuously. As a process to verify, the durability test of dynamic power cables under the marine operation environment condition was carried out by using domestic technology development.

EV Charging System through the Rail Power Grid (철도 전력망을 이용한 전기자동차 급속 충전 시스템)

  • You, Sung-Han;Lee, Tea-Hoon;Cho, Yong-Chan;Park, Lea-Hyuk
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.1240-1241
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    • 2011
  • 이 논문은 LS전선, 서울 메트로, 철도기술연구원(KRRI)이 공동으로 연구한 '도시철도 연계 EV 충전 시스템' 프로젝트와 LS전선, 환경공단이 공동 개발한 '전기 자동차 충전 인프라 구축 사업'을 바탕으로 내용을 구성 하였다. 전기 자동차 충전 인프라 시스템 구축은 크게 3가지 이슈 -전력 연계, 충전 시설, 충전기 운영 통신 시스템-가 있다. 전기 자동차 충전 시스템을 철도 전력 인프라망을 연계했을 때 얻을 수 있는 이점들, 충전 인프라 운영 시스템에 대한 실증 내용을 논하였으며 추가적으로 향후 계획도 포함되어 있다.

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