KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	Effectiveness Evaluation and Operation Scheme on Cable Transposition in Underground Transmission Systems with Ungrounded Joint Box
Authors	김준(Kim, June) ; 이종범(Lee, Jong-Beom)
DOI	https://doi.org/10.5370/KIEE.2015.64.2.240
Page	pp.240-246
ISSN	1975-8359
Keywords	EMTP ; Underground power cable ; Transposition ; Untransposition ; Ungrounded
Abstract	Length of most underground power cable in home is not so long. Therefore it is operated without transposition due to low unbalanced ratio. However, if cable length is long, line constant of each cable will be different. Different line constant can induce unbalanced voltage and current of sheath. Also it can induce several induced interference. This paper describes the effectiveness of transposition through sheath component analysis on transposition and untransposition of cable conductor. Especially sheath current and induced voltage are analyzed and compared in case of transposition and untransposition. EMTP is used for modeling and analysis.

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