• 제목/요약/키워드: Cable Termination

검색결과 48건 처리시간 0.043초

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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Intelligent 전기계통 도면작성 Application 기술개발 (The Development of application for intelligent electrical system drawing generation program)

  • 유기홍;조성돈
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 제39회 하계학술대회
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    • pp.2220-2221
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    • 2008
  • 전기계통설계 도면인 Single Line Diagram(단선도), Schematic Diagram(전개접속도), Cable Block Diagram/Cable Schedule, Cable Termination/Connection Diagram(단말결선)의 도면 상호간 데이터 연계에 의한 자동, 통합형태의 Intelligent 전기계통 도면 작성 프로그램 개발에 대한 기본적인 방향에 대하여 소개하고자 한다.

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사우디아라비아 380kV XLPE Cable의 신뢰성 확보를 위한 온라인 부분방전 모니터링 시스템 구축 (Construction of On-line Partial Discharge Monitoring System for 380kV XLPE Cable in Saudi Arabia)

  • 서인진;이전선;김한중;김종철;김정윤;이현선
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 Techno-Fair 및 추계학술대회 논문집 전기물성,응용부문
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    • pp.95-96
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    • 2008
  • We constructed an on-line PD monitoring system for the 380kV U/G Cable project at the Riyad 9012 substation in Saudi-arabia. The system will be monitoring the termination of the two 380kV XLPE Cables to prevent unexpected failure of the cable insulation. The system had been tested in the laboratory and on-site for detection of various PD signals and reliability of operation. The system distinguish the existence and nonexistence of the partial discharge and then judge the source of partial discharge using automatic PD pattern recognition software.

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교류손실 및 안정성을 고려한 22.9kV 초전도 케이블 설계 (Design of 22.9kV High Temperature Superconducting Cable Considering AC losses and Stability)

  • 장현만;이창영;김춘동;심기덕;조전욱
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 제36회 하계학술대회 논문집 B
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    • pp.1210-1212
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    • 2005
  • High temperature superconducting(HTS) power cable system consists of HTS cable, termination and cryogenic system. And the HTS cable consists of the former, HTS phase conductor, electric insulation, HTS shield and cryostat. Taking the advantage of HTS shield, the cold dielectric has been adopted. The phase conductor and the shield have been designed to minimize the AC loss below 1W/m/phase. The former has been designed to transport the fault current of 25kA, at fault condition. This paper describes the design process of 22.9kV HTS cable considering AC losses at normal state and the stability at fault condition.

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ABC 배전 접속 시스템에 대한 연구 (The Research into Connecting System for Aerial Bundled Cable in Distribution Line)

  • 이용순;최경선;주종민;이철호
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 하계학술대회 논문집
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    • pp.495-498
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    • 2001
  • The distribution line through which electricity is supplied from substation to customer generally varies by underground line and overhead line. In contrast that the underground line is shielded, the overhead lines do not have the shield layer. To overcome this weak point of the overhead lines, the aerial bundled cable(ABC) connection systems have been developed. The basic concept of the ABC connection system is the application of the underground cable system containing complete shield layer to the overhead cable system. The ABC system is the innovative technologies which enable the prevention of electric shocks, reduction of the maintenance charge and damage of the cable. This paper give a full detail of vertical connection system applied within a country.

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HVDC 절연유 중에서 Silicone Rubber의 팽윤특성 분석 (The Analysis of HVDC Cable Oil Swelling Characteristics on the Silicone Rubber)

  • 이태호;김남열;김정년;전승익
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 제38회 하계학술대회
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    • pp.623-624
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    • 2007
  • This work examines the effects of swelling MI type HVDC cable oil on the semiconductive silicone rubber and silicone rubber as used in accessories for application on outdoor termination (EBA) slip on sleeve. The behavior of volume resistivity is monitored as a function of the amount of cable oil diffused into the material. Resistivities of semiconductive silicone samples up to the typical insulator range (${\sim}10^{10}{\Omega}-cm$) are observed as a consequence of swelling due to the presence of the diffused oil. The measured volume resistivities of the oil-impregnated semiconductive silicone rubber are compared to desired value as function of stress relief cone.

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154kV, 1GVA 초전도케이블 설계 (Design of 154kV, 1GVA HTS Cable)

  • 조전욱;심기덕;김석호;이수길;장현만;최창열;이근태;양병모;김성래
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2010년도 하계학술대회 논문집
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    • pp.192-192
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    • 2010
  • DAPAS (Development of Advanced Power system by Applied Superconductivity technologies) program that the, superconductivity national program has been started one of the 21C frontier programs from 2001 in Korea. The 3rd phase of DAPAS program was started at April 2007, and the ultimate goal of HTS cable project is to develop 154kV, 1GVA class HTS cable. The structure of 154kV, 1GVA HTS cable is single core with cold dielectric insulation. The cable core consists of the former, conduction layer, electrical insulation layer, shielding layer. The cable cryostat consists of two corrugated seamless aluminum tubes as its high sealing reliability, the tubes separated through a spacer arrangement. Outdoor termination was developed by LS cable and cryogenic system by CVE for 154kV, 1GVA class HTS cable. The 154kV, 1GVA HTS cable will be installed and be tested in KEPCO Gochang Testing Center from June 2010.

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지중송전케이블 종단접속함 Thermo-Mechanical 특성 분석 (Analysis on Thermo-Mechanical Characteristics of Underground Cable Termination)

  • 정채균;강지원;박흥석;김두진;노태형;윤종건
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2015년도 제46회 하계학술대회
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    • pp.365-366
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    • 2015
  • This paper describes the analysis on thermo-mechanical characteristics of underground cable termination. Specially, the interface pressures between stress relief cone and XLPE insulation were analysed according to the change of conductor temperature and ambient temperature. This interface pressures were measured by real test with current transformer and chamber and the interface pressure was changed with conductor and ambient temperature. This paper will continue to perform the test with various cases, then the relation between low interface pressure and breakdown will prove with test results in the near future.

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Breakdown Characteristics of Insulation Materials for a Termination of Power Transmission Class HTS Cable

  • Kwag Dong-Soon;Cheon Hyeon-Gweon;Choi Jae-Hyeong;Kim Sang-Hyun
    • 한국초전도ㆍ저온공학회논문지
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    • 제8권2호
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    • pp.37-42
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    • 2006
  • A research on several characteristics such as volume breakdown and surface discharge of insulators for a termination of power transmission class HTS cable was performed. We investigated the surface discharge of glass fiber reinforced plastic (GFRP) under air, cryogenic nitrogen gas and nitrogen gas media. The breakdown characteristics of these media were studied. Experimental results revealed that flashover voltage greatly depends on pressure, temperature, the kinds of insulating media and voltages, but it is slightly affected by shape and material of electrode. The breakdown voltage of liquid nitrogen, cryogenic nitrogen gas and nitrogen gas deeply depends on the shape and dimension of electrode, kinds of voltages and pressure. Moreover, the breakdown voltage of cryogenic nitrogen gas and flashover voltage of GFRP in the cryogenic nitrogen gas is also influenced by temperature and vapour-mist density of the gas.