• Title/Summary/Keyword: 765kV

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Characteristics of wind noise on 765kV Transmission Line and countermeasure against wind noise (765 kV 송전선로의 풍소음 발생특성과 대책연구)

  • Lee, Dong-Il;Shin, Koo-Yong;Chu, Jang-Hee;Kim, Sang-Beom;Lee, Seong-Doo;Kim, Jeong-Boo
    • Proceedings of the KIEE Conference
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    • 2000.07c
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    • pp.2005-2007
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    • 2000
  • KEPCO 765 kV Transmission Lines where seasonal winds intersect to the direction of the transmission line route cause aeolian complaints from residents near the transmission lines due to 1.5 times sub-conductors numbers and about 2 times of tower height comparing 345 kV transmission lines. To decrease the wind noise generation, KEPRI developed two countermeasures. One is to install the Spiral Rod on wired 765 kV Cardinal conductor. The other method is to wire the Low Noise conductor which has salient part on the surface.

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765kV 송전선로 건설추진

  • 이석규;김우겸;이안근;신태우
    • 전기의세계
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    • v.46 no.5
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    • pp.11-18
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    • 1997
  • 다가오는 21세기는 삶의 질 향상과 산업의 선진국화 생활환경의 자동화 및 정보화로의 전이등으로 전력수요가 급격히 증가할 것이다. 장기 전력수요예측[1]에 의하면 1995년 29,878MW였던 최대부하가 2000년 43,500MW, 2005년 55,700MW, 2010년 65,600MW가 될 것으로 예측하고 있다. 이에 따라 커지는 전력유통을 원활하게 하기 위하여 한전에서는 기존 345kV 송전선로의 5배의 송전능력을 가진 765kV 송전선로를 건설하고 있다. 765kV 송전선로는 국내 최고의 전압으로서 최초로 건설될 뿐만 아니라 제 1단계로 건설에 착수한 물량도 340km를 일시에 시행하는 대규모이다. 이와같은 사업의 시작부터 지금까지 추진한 내용과 공사에 새롭게 적용하는 기술, 공법등에 대하여 기술하고자 한다.

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Insulation design for KEPCO 765kV Transmission Lines (한전 765 kV 송전선로의 절연설계)

  • Koo, B.M.;Won, Y.J.;Hwang, J.I.
    • Proceedings of the KIEE Conference
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    • 1994.07b
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    • pp.1628-1632
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    • 1994
  • KEPCO is now promoting the new project of upgrading its highest system voltage from 345kV to 765kV. The main reason of this project is an insurance of bulk power transmission from power complexes at coast to power demand center at Kyoung-In area. The new system needs a careful approach to basic design to secure its reliability and to reduce the increase of investment cost. So, We introduced the basic philosophy of insulation design in spring meeting of this transaction. This paper, after preceding paper, deals with the insulation design example for 765kV transmission lines.

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The Basic Study on 800kV GIS Development (800kV GIS 개발을 위한 기본연구)

  • Kim, J.B.;Yang, D.I.;Song, W.P.;Lee, C.H.;Noh, C.W.
    • Proceedings of the KIEE Conference
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    • 1995.07c
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    • pp.1341-1343
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    • 1995
  • The maximum transmission voltage in our country is going to change 345kV into 765kV owing to the increase of Electrical Power Demand and power System Stability. Our company is developing 800kV GIS and 765kV Transformer which are main equipments in 765kV substation. This paper describs the specification on 800kV GIS which we prepared for 800kV 8,000A 50kA GIS development. This specification is supported by Public Standards and Data. And, we are designing the 800kV GIS on this specification and drawing up the 800kV GIS layout for type test.

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765kV 송전계통의 안정도 분석

  • 오태규
    • 전기의세계
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    • v.43 no.8
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    • pp.58-63
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    • 1994
  • 본 고에서는 765kV 계통구성에 따르는 계통안정도문제에 대해 실무와 학술의 중간적인 시각에서 살펴보고자 한다.

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Grounding System Design According to Indoor Substation (변전소 옥내화에 따른 접지설계)

  • Choi, J.K.;Joo, B.S.;Kim, M.D.;Kim, J.B.
    • Proceedings of the KIEE Conference
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    • 1996.07b
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    • pp.905-907
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    • 1996
  • Current design standard of substation grounding systems is primarily concerned with conventional outdoor substations. But in case of 154kV substations in the nation, almost all are indoor-type GIS substations. So there became to be something not proper for application of present design standard to indoor-type substations. In this paper, as a preliminary stage of drawing-up of the grounding system design standard which concerned with in-door-type substions, issues of current design standard are mentioned and directions of improvement are also presented.

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Analysis of Switching Surge in Overhead Transmission Line with Underground Cable Line (가공 및 케이블로 구성된 선로의 개폐서지 해석)

  • Kang, Y.W.;Shim, E.B.;Joo, B.S.;Kim, M.D.
    • Proceedings of the KIEE Conference
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    • 1996.07c
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    • pp.1938-1940
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    • 1996
  • As transmission systems has been complicated and various, cases of transmission systems which is made up with underground cable line only or overhead transmission line with underground cable line have been increased. When transmission lines with different types of cable, it is more likely to be vulnerable to the surges. This paper analyzed these surge in 154kV transmission line by means of EMTP (Electro Magnetic Transient program).

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Overvoltage Analysis for One Side Energization of 765kV Line (765kV 선로 편단가압 시 전압상승 분석)

  • Seo, H.C.;Yeo, S.M.;Kim, C.H.;Yoo, Y.S.;Jo, B.S.
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.608-609
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    • 2007
  • 본 논문에서는 765kV 선로의 편단가압 시 기존 운전중인 선로에서의 전압상승에 대하여 분석하였다. EMTP-RV를 이용하여 당진T/P$\sim$신서산S/S$\sim$신안성S/S의 실계통 모델을 구현하여, 선로길이 및 전원용량을 변경시키면서 시뮬레이션 하였으며 그 결과를 분석하였다.

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Environmental Impact on the KEPCO 765-kV Double Circuit Transmission Line (한전 765 kV 2회선 송전선로의 전기환경장애 특성)

  • Lee, D.I;Sin, K.Y;Kim, J.B
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.48 no.2
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    • pp.117-126
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    • 1999
  • The environmental impact of the KEPCO 765-kV transmission line was studied using a full scale test line in order to develop the design technology. Therefore this paper describes an environmental design summary of the audible noise, hum noise, wind noise, radio interference, TV interference and electric field measurement from the KEPRI 765-kV double circuit transmission test line with a bundle of $6-480mm^2$ conductors per phase. The analysis of the test results shows that 6-Rail and 6-Cardinal conductors bundle satisfy the audible noise criterion & TV interference under the stable rainy weather condition and the radio interference level under the fair weather. And the other items are also agreed with the design level criterion for KEPCO 765-kV transmission line.

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