대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2015년도 제46회 하계학술대회
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- Pages.1617-1618
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- 2015
교류급전방식에서의 연장급전에 따른 선로임피던스 특성 분석
Analysis of Catenary impedance characteristics in the extended power feeding conditions of AC traction system
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Jung, Hosung
(Korea Railroad Research Institute) ;
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Kim, Joorak
(Korea Railroad Research Institute) ;
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Chang, Sanghoon
(Korea Railroad Research Institute)
- 발행 : 2015.07.15
초록
This paper analyzed catenary impedance characteristics of relays installed in substation and sectioning post to protect power feeding circuit in the extended power feeding conditions. For this, we modelled AT feeding system using PSCAD/EMTDC and calculated catenary impedance. The relay installed in substation calculated catenary impedance of the extended power feeding area adding catenary impedance of self protection zone. But, the relay installed in sectioning post calculated catenary impedance of the only protection area. Therefore, we confirmed that the more reliable protection way can be utilized using the relay installed in sectioning post.
키워드