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김익수(I. S. Kim),김민규(M. K. Kim),허대행(D. H. Huh),구자열(J. Y. Koo),공용식(Y. S. Kong),이홍주(H. J. Lee) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.11
This paper represents the reliability assessment on the mould type combined transformer used in the distribution system by electrical tests. For the reliability assessment, we had tested lightning impulse test, short-circuit withstand capability test, electrical accelerated life test and so on to the mould type combined transformer of Young-Hwa Industrial Electric Co., Ltd.
김익수(I. S. Kim),김민규(M. K. Kim),허대행(D. H. Huh),윤진열(J. Y. Yoon),한기선(G. S. Han) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.4
This paper represents the criteria of earthing system for substation design in Korea. The construction of new substations and expansion of existing facilities are commonplace projects in KEPCO(Korea Electric Power Corporation). The KEPCO has had the only design criteria, which need to be adequate criteria considering the new technology and environment in Korea.
김익수(I. S. Kim),김민규(M. K. Kim),허대행(D. H. Huh) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
This paper represents the step response characteristics of shunts for impulse current. This work is aimed at the development of the reference measuring system(RMS) for impulse current rated 10 ㎄ at 1/20 ㎲, 100 ㎄ at 4/10 ㎲, 20 ㎄ at 8/20 ㎲, 40 ㎄ at 30/80 ㎲. According to the IEC 60060-2, the step response characteristics was assessed. As results of the test, the step response characteristics of newly developed shunts for impulse current satisfied requirements of RMS.