電線共同溝内におけるアーク短絡故障時の圧力上昇・伝搬
電線共同溝内におけるアーク短絡故障時の圧力上昇・伝搬
カテゴリ: 論文誌(論文単位)
グループ名: 【B】電力・エネルギー部門
発行日: 2015/08/01
タイトル(英語): Pressure-rise and Propagation due to Short-circuit Fault Arc in Underground Common Duct
著者名: 宮城 吏((一財)電力中央研究所 電力技術研究所),田中 慎一((一財)電力中央研究所 電力技術研究所),岩田 幹正((一財)電力中央研究所 電力技術研究所),天川 正士((一財)電力中央研究所 電力技術研究所)
著者名(英語): Tsukasa Miyagi (Electric Power Engineering Research Laboratory, CRIEPI), Shin-ichi Tanaka (Electric Power Engineering Research Laboratory, CRIEPI), Mikimasa Iwata (Electric Power Engineering Research Laboratory, CRIEPI), Tadashi Amakawa (Electric Power Engineering Research Laboratory, CRIEPI)
キーワード: アーク,共同溝,数値流体力学,圧力上昇,地中配電 arc,common duct,computational fluid dynamics,pressure rise,underground distribution
要約(英語): In recent years, in order to ensure the delightful walking space and improve the urban landscape, the type of shallowly buried underground system for the common duct system of power cables and other cables has been introduced in the Japanese power distribution system. When a short-circuit fault arc occurs on high-voltage power cables in an underground common duct, the pressure in the latter increases due to the high temperature of the arc and it is concerned that such a pressure rise will influence another electrical power equipment. Therefore, comprehending the pressure rise and propagation due to fault arcs by the short-circuit test is important. However, the pressure rise and propagation are affected by many factors. Therefore, simulation technology is effectively applied to examine such a pressure rise and propagation in addition to short-circuit tests. In this paper, a 3-D CFD calculation model was constructed regarding the pressure rise and propagation in the underground common duct and the numerical analysis was carried out. As a result, it was revealed that the simulation results corresponded with 20% accuracy to the maximum pressure rise obtained by short-circuit tests.
本誌: 電気学会論文誌B(電力・エネルギー部門誌) Vol.135 No.8 (2015)
本誌掲載ページ: 519-526 p
原稿種別: 論文/日本語
電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/135/8/135_519/_article/-char/ja/
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