• Title/Summary/Keyword: Electric Power Corporation

Search Result 1,387, Processing Time 0.035 seconds

New Technical Trend of Inspection and Test of Transmission Line (가공송전선로 점검 및 진단기술에 대한 해외기술동향)

  • Shin, Tai-Woo;Jang, Suk-Han;Kim, Mu-Soo;Min, Byeong-Wook;Choi, Jin-Sung;Yoon, Gen-Hwa;Gwon, Yeon-Han;Jung, Du-Ok;Bang, Hang-Kwon;Choi, Han-Yeol
    • Proceedings of the KIEE Conference
    • /
    • 2008.07a
    • /
    • pp.315-317
    • /
    • 2008
  • Recently, a new construction of transmission line has been through quite hard situation due to demands for a new construction of transmission line have been saturated in south korea and also difficulties of purchasing the routes. In addition, the demands for electricity have been decreased in all of advanced countries of the world due to slowdown of the rate of economic growth. So they are trying to find a way to utilize a existing transmission line by extending the durable period. Therefore this is necessary to apply an applicable technology on domestic markets such as inspection, examination, maintenance of existing transmission lines by introducing advanced countries's example which shall be based on Japan's electric power companies.

  • PDF

EMTP Modeling for Fault Location in HVDC Sea Submarine Cable (HVDC 해저케이블 고장점 탐지를 위한 EMTP 모델링)

  • Yang, B.M.;Park, J.W.;Park, J.W.;Choi, K.K.;Kang, J.W.;Yoon, H.H.
    • Proceedings of the KIEE Conference
    • /
    • 2008.10a
    • /
    • pp.79-80
    • /
    • 2008
  • 제주-해남간 운영중인 HVDC 해저케이블에서 발생한 절연파괴사고('06.4)와 관련하여 써징코일을 이용한 고장점 탐색을 실시하고 고장지점 추정 및 향후 대책마련에 활용하코자, 제주-해남 HVDC 해저케이블 고장점 모의용 EMPT 모델링을 개발하였으며 유인잠수정을 이용한 실측 데이터 값과 EMTP를 활용한 시뮬레이션값을 비교하였다. 향후, 다양한 HVDC 해저케이블 고장유형에 따른 과도해석용 시뮬레이션을 위하며 본 논문에서 개발한 EMTP 모델링 활용이 가능할 것으로 생각된다.

  • PDF

Co-combustion of Bituminous Coal with Anthracite in a Down-firing, 200 MW Boiler

  • Park, Ho Young;Baek, Se Hyun;Kim, Young Joo;Kim, Tae Hyung;Kim, Hyun Hee;Lim, Hyun Soo;Park, Yoon Hwa
    • KEPCO Journal on Electric Power and Energy
    • /
    • v.1 no.1
    • /
    • pp.93-97
    • /
    • 2015
  • The combustion tests for Korean anthracite-bituminous coal blend were carried out in the 200 MW utility boiler. The burning characteristics of the blend were studied with a thermogravimetric analyzer (TGA). From the observation of TGA burning profiles, it was found that the presence of bituminous coal in the blend appeared to enhance the reactivity of anthracite in the higher temperature region, indicating certain interactions between the two coals. The plant test showed the boiler operation was reasonably stable with somewhat poor combustion efficiency, and some modification of the combustion environment in the furnace is necessitate for the further stable plant operation.