• 제목/요약/키워드: XLPE Cable

검색결과 316건 처리시간 0.027초

345kV XLPE 장거리 지중송전선로 준공 (COMPLETION OF 345kV LONG DISTANCE XLPE CABLE)

  • 이인호;이승현;허회덕;진용국;이전선
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 추계학술대회 논문집 전력기술부문
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    • pp.364-366
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    • 2003
  • 345kV XLPE Cable system was constructed between Yeongseo-Yeongdeunpo at first in Korea. XLPE cable have the advantage of OF cable. it is to raise the power transmission capacity and reduce the power loss and expenses. We also applied many new technology in this project at first. One is pre-fabricated joint which can be easily assembled in the field without any hand-skill, another is PD(Partial Discharge) test for after laying test. Especially, PD measurement for after-laying test was performed to evaluate the quality of the cable joint and termination. Through the good experience of this project, we have gotten the international competitiveness of power business.

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345kV CV케이블의 절연두께 산정 (Estimate of Insulation thickness for EHV XLPE power cable)

  • 최봉남;윤덕환
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2001년도 하계학술대회 논문집 C
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    • pp.1801-1803
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    • 2001
  • At present the under ground power transmission systems have installed until 154KV XLPE power cable in Korea But, the large capacity underground power transmission systems have been required gradually with the increasing demand of electric power. Therefore, our company has developed 345KV XLPE cable. This paper describes the estimate details of the insulation thickness according to weibull plotting for 345KV XLPE power cable.

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지중송전계통에서 XLPE케이블의 교량첨가시 모델수립 및 뇌과전압 해석 (Lightning Overvoltage Analysis and Model Establishment of XLPE Cable Underneath a Bridge on Underground Power Cable Systems)

  • 김철호;이종범
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 제39회 하계학술대회
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    • pp.2243-2244
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    • 2008
  • In this paper, XLPE cable underneath a bridge is modelled using EMTP/ATPDraw. Bridge section is also modelled by mutually coupled parallel conductor with XLPE cable. This paper is analysed the overvoltge by structure change of bridge section when the lightning occurs on the system.

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LSR-XLPE, EPDM-XLPE 이종계면에서의 계면처리에 따른 절연파괴특성 (The Study for the Breakdown Characteristics of Interface between LSR-XLPE, EPDM-XLPE by the Interfacial Treatment Condition)

  • 조한구;이유정
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2007년도 하계학술대회 논문집 Vol.8
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    • pp.460-461
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    • 2007
  • In this paper, we studied the properties of a cable insulate capacity between surfaces with the variation of the interfacial breakdown. As a function of silicon oil, the variation of pressure and interfacial roughness were investigated. The insulate trouble of a power cable is out of the interfacial parts, which breakdown the insulate breakdown capacity in a power cable. In this study, the analysis of electric field and the phenomenon of interfacial breakdown were improved by increased interfacial pressure, decreased surface roughness, and oil. And It was shown that interfacial breakdown LSR-XLPE insulators is higher that of EPDM-XLPE.

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XLPE 절연 전력케이블의 절연체 가교도에 따른 인장강도 및 신장특성 (Tensile strength and Elongation Characteristics for Insulation Crosslinking of XLPE Insulated Power cable)

  • 김위영;윤대혁;박태곤
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 C
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    • pp.1425-1427
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    • 2002
  • Degree of crosslinking of insulation is very important factor that is determined characteristics of XLPE insulated power cable. Increase of degree of crosslinking is closely related to increase of mechanical characteristics of XLPE insulated power cable. In this study, mechanical characteristics of XLPE insulation for degree of crosslinking was analyzed tensile strength and elongation of insulation. As the result, mechanical characteristics of insulation for degree of crosslinking was divided three cases.

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Compact 230kV 케이블용 접속함 개발 (The Development of the compact accessories for 230kV XLPE cable)

  • 이형석;손시호;김광수;이광열;장기욱;배경무
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 추계학술대회 논문집 학회본부 C
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    • pp.1075-1077
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    • 1999
  • XLPE cables are being used more widely all over the world as extra-high voltage transmission lines owing to the superior characteristics compared to OF cables. In view of the worldwide trend of utilizing high stress cables, we developed the accessories for 230kV XLPE cables which have smaller insulation thickness than that of present cables. The performance of the newly developed 230kV cable and its accessories has superior inital characteristics. As a result, the improved reliability of 230kV XLPE cable system has been obtained. This paper describes the major design concept and the test results of development procedure.

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345kV XLPE 케이블의 개발 현황 (Present Development Trends of 345kV XLPE Cables)

  • 김영;박근룡;이상현;허근도;이승현
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 C
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    • pp.1881-1883
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    • 2002
  • Recently, 345kV XLPE Cable and Accessories have been developed and will be applied for Youngseo$\sim$Youngdeungpo project in Korea. So, let this project and the process of development introduce on this paper. The cable type and length of this project is 345kv XLPE 1C*$2000mm^2$ 66km and all cable will be pulled on cable tunnel. The diameter of cable insulation was designed as 27mm, we could reduce it by appling for hi-tech and super-clean system. Joints were developed by a pre-fabricated type which considered high safety and economic issues. We had also done Pre-Qualification test for verifying the reliance of cable and accessories before construction. As we developed this 345kV XLPE cable system including its accessories at the same time, we can have higher technologies and contribute safe power in transmission lines. In adtionally, we can have a stable status for suppling EHV cable systems to a variety foreign customers by ourselves.

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장조장 XLPE 케이블 절연 파괴 원인 규명을 위한 전구차단 장치의 응용 (The Application of Pre-Breakdown Partial Discharge Detection Method for Breakdown of Investigation of Long Distance XLPE Cable)

  • 이창영;김동욱
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 C
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    • pp.1827-1829
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    • 2002
  • This paper describes AC test for long delivered drum length of cable using pre-breakdown partial discharge detection(PPD) method, which can be applied to observe the causes of electrical breakdown of EHV XLPE insulation. This method is to de-energize applied voltage to cable rapidly using pre-breakdown partial discharge, and is able to prevent complete breakdown. By this effect, defects such as voids, metal particles and protrusion in cable can be observed clearly. AC resonant test set was used for PPD method. Localization of partial discharge was performed by time difference detection of the traveling wave. Accuracy of localization was 1% to the length of test cable. Through several experiments with XLPE cable, successful results of PPD method were obtained.

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경사지에서의 345kV XLPE $1C{\times}2000mm^2$ 케이블 코아 활락 현상 연구 (The study on slipping down phenomenon of 345kv XLPE cable in inclinatior)

  • 백주홍;남석현;이수길;허회덕;김동욱;박완기
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 C
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    • pp.1782-1784
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    • 2002
  • In this paper, the coefficient of friction betwee and sheath in 345kv XLPE cable was measured the simulated inclinated condition of You-Youngdeungpo transmission line. The phenomena of slipping down the simu inclination was investigated theoretically usin measured data and was analyzed from experim result. The measured and analyzed result were conside be as a reference data for real installation of XLPE Youngseo-Youngdeungpo transmission line.

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XLPE 절연체에서의 열이력에 의한 전기, 물리적 특성 평가 (Estimation of Electrical & Physical Characteristics by Thermal History in XLPE Insulation)

  • 이상진;심성익;전승익
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 Techno-Fair 및 합동춘계학술대회 논문집 전기물성,응용부문
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    • pp.183-184
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    • 2008
  • 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 crtstallinity 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.

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