• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2007년도 추계학술대회 논문집
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• pp.470-471
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• 2007

Underground connectors in 154kV for the connection between power cables and power equipments represent a greater part of power system stability and reliability. This paper presents the performance evaluation of 154kV separable dry type plug-in connector of a company in Japan for transformers and Gas Insulated Switchgear. And the possibility of the application on domestic underground line was considered.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 추계학술대회 논문집 전기설비전문위원
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• pp.37-39
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• 2004

To restrain abnormal voltage and effective operation in protect system, some of customer in Korea earth their own transformer in 154kV power system. The above ground system has some problems if ground fault occurs in other related area such as ground relay errors, under count register in two element register system. There for most huge customers opens the ground neutral and it causes errors in insulate and protection coordination and register system. In this paper presents the solution for above system.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.61-64
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• 2001

Demand for development of 154kV Less-Flammable Power transformer is now increasing greatly instead of a oil-immersed transformer for preventing disasters and Less-flammability of substations. The most important point in developing Less-flammable transformer is cooling system. This paper describes the study on cooling characteristic of Less-flammable transformer.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 A
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• pp.515-517
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• 2002

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 A
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• pp.416-418
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• 2000

Main power transmission network in Korea is consist of 154kV, 345kV transmission lines. Also 765kV transmission lines are on construction currently. There are some differences in the insulation design concept, methods and contents on 154kV, 345kV and 765kV overhead transmission lines respectively. In this paper, we described and summarized the applied insulation design concept, methods and features on each transmission lines.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 하계학술대회 논문집 A
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• pp.449-451
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• 2001

This paper described the switching overvoltage analysis on the 345kV and 154kV transmission system by EMTP(Electromagnetic transient Program) for the enactment of current insulation design standards of KEPCO. The air clearance design of current transmission tower was reviewed and revised by the calculated result, considering swing angle for the each type of insulator string by the wind velocity.

• 전기학회논문지
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• 제59권10호
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• pp.1761-1769
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• 2010

This paper describes switching surge analysis on reclosing decision in 154kV combined transmission line with power cables. Reclosing should be operated in combined transmission line based on the technical evaluation because of insulation problem of power cable section. If the surge strikes on power cable, the breakdown can occur at week point of cable insulation. Therefore the detailed analysis is required by considering several conditions such as length ratio of power cable, arrester, fault resistance, charging rate and grounding resistance, etc.. In addition, sheath voltage on IJ(Insulated Joint) is analyzed to confirm the protective level. Simulation is performed by EMTP/ATP. Analysis results show that reclosing can be operated without any special problem by the single line-to-ground fault with fault resistance of $1\Omega$ to $50\Omega$ occurred at the overhead transmission section in 154kV combined transmission lines and trap charge of 100% and 110%.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 추계학술대회 논문집 전기설비전문위원
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• pp.50-52
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• 2004

국내 154kV XLPE 케이블 시스템은 장기운전에 따른 열화진단 및 유지보수의 필요성이 증대되고 있다. 헌재 실선로 진단에 적용되고 있는 기술은 열화상 측정, 부분방전 검출 시스순환전류분석 및 저감기술등이 있다. 본 논문에서는 상기의 진단기술을 운전중인 154kV 실선로에 적용하여 결함을 검출한 사례를 기술하였다. 특히 부분방전 진단의 경우 접속함 내부에 존재하는 결함을 검출하여 사고를 미연에 방지한 것으로 사료된다.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2014년도 추계학술대회 논문집
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• pp.137-138
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• 2014

우리나라 전력계통은 점점 복잡화, 대형화되어 가고 있으나, 이에 따른 전력설비의 신설은 날로 어려워지고 있다. 이러한 변화에 능동적으로 대처하기 위해 FACTS(Flexible AC Transmission System) 기술이 주목받고 있으며, FACTS는 대용량 전력전자기술을 이용하여 송전선로의 안정도 제어 및 송전용량 증대를 목적으로 설치된다. 현재 우리나라 전력계통에는 SVC, UPFC, STATCOM 등의 기기들이 개발되어 운영되어 있으며, 그 중에 SVC가 대표적으로 변전소에 많이 설치되어 무효전력 보상으로 전압안정도를 향상시키고 있다. 이에 따라서 본 논문은 154kV 송전계통에서 SVC의 여러 제어 방법 중 Susceptance 제어에 관해서 기술하고자 한다.

• 대한전기학회논문지
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• 제41권6호
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• pp.661-672
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• 1992

In this study, the 154kV 800 MVA cryogenic resistive cable and its power transmission system were designed and built in a purpose of suggestion a plan using high density and large power transportation systems in practice to solve the recent increase in demands of electrical energy. Cryogenic resistive cable uses the benefits of increasing the conductivity of matals in LNS12T. We describe the details of designs of cryogenic resistive cable consisting of main part in this system.