http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
EMTP를 이용한 광 복합 지중송전케이블 광 유니트 금속관의 시스템 영향분석
정채균(Chae-Kyun Jung),장태인(Tai-In Jang),강지원(Ji-Won Kang) 대한전기학회 2014 전기학회논문지 Vol.63 No.9
This paper describes the effects on SUS tube of power optical fiber composite cable on underground transmission lines. The effects on grounding, air gap between SUS tube and metal sheath, contact resistance between outer semi-conducting layer and metal sheath and grounding of SUS tube application or not are variously analysed using EMTP in normal operating condition as well as single line to ground fault. From these results, in this paper, the scheme for protecting the electrically abnormal phenomena will be established on power-optical fiber composite cable of underground transmission lines. This paper can contribute to specification of grounding reference of SUS tube of optical fiber composite power cable system.
정채균(Chae-Kyun Jung),신구용(Koo-Yong Shin),임재섭(Jae-Seop Lim),이동일(Dong-Il Lee),강지원(Ji-Won Kang),김동희(Dong-Hee Kim) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
This paper describes the effects of mutual coupling between AC transmission and DC transmission. It considers hybrid transmission types. This hybrid transmission type consists of 2 circuits of AC 154㎸ transmission line and 1 circuit of DC ±80㎸. This paper, firstly, analyses the induced AC voltage on DC transmission line. Then, the optimized phase arrangement is selected from these results. Finally, DC withstand voltage will be also determined for insulation coordination considering mutual coupling phenomena.
정채균(Chae-Kyun Jung),양병모(Byung-Mo Yang),강지원(Ji-Won Kang),이승엽(Seong-Yeop Lee),원영진(Young-Jin Won) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
This paper analyses the EMTDC modeling structure of 22.9㎸ 50MVA HTS cables. It proposes the new modeling structure with electric model and thermal model. The modeling method considering cable sections separated by very short section and long section is also proposed for transient analysis by increasing of sectionalized critical temperature. Finally, this paper analyses current and temperature distribution at each layer according to modeling methods between conventional modeling and newly proposed one in case of external single line to ground fault.