Theoretical and Experimental Study on the Basic Characteristics of AC Induced Voltages

カテゴリ: 研究会(論文単位)

論文No: HV20003

グループ名: 【B】電力・エネルギー部門 高電圧研究会

発行日: 2020/01/23

タイトル(英語): Theoretical and Experimental Study on the Basic Characteristics of AC Induced Voltages

著者名: Liu John(University of Manitoba),Lin Ting(University of Manitoba),Ametani Akihiro(University of Manitoba),Gole Aniruddha(University of Manitoba),De Silva Jeewantha (Manitoba Hydro International)

著者名(英語): John Liu(University of Manitoba),Ting Lin(University of Manitoba),Akihiro Ametani(University of Manitoba),Aniruddha Gole(University of Manitoba),Jeewantha De Silva(Manitoba Hydro International)

キーワード: AC induced voltage|overhead conductor|inductive coupling|capacitive coupling|circuit theory|EMTP|AC induced voltage|overhead conductor|inductive coupling|capacitive coupling|circuit theory|EMTP

要約(日本語): This paper investigates basic characteristics of steady-state AC induced voltages to an overhead conductor from a nearby conductor based on a circuit theory, EMTP and experiment. When both ends of the induced conductor are open-circuited, the inductive induced voltage at one end is in opposite polarity to that at the other end, and thus there exists “zero-potential” position along the induced conductor as predicted by the circuit theory and confirmed by EMTP. When the resistances at both ends are the same, the conductor center becomes the zero-potential position. The capacitive induced voltage is the same along the open-circuited induced conductor. When one end of the induced conductor is grounded, no capacitive induced voltage appears. A measured voltage on the induced conductor is composed of the inductive and capacitive induced voltages of which the phase angles are different. It was not easy to obtain an accurate measured result in the experimental circuit with a short-length conductor, small inducing current and noises in the grounding circuit, i.e. no ideal voltage reference for the measurement.

要約(英語): This paper investigates basic characteristics of steady-state AC induced voltages to an overhead conductor from a nearby conductor based on a circuit theory, EMTP and experiment. When both ends of the induced conductor are open-circuited, the inductive induced voltage at one end is in opposite polarity to that at the other end, and thus there exists “zero-potential” position along the induced conductor as predicted by the circuit theory and confirmed by EMTP. When the resistances at both ends are the same, the conductor center becomes the zero-potential position. The capacitive induced voltage is the same along the open-circuited induced conductor. When one end of the induced conductor is grounded, no capacitive induced voltage appears. A measured voltage on the induced conductor is composed of the inductive and capacitive induced voltages of which the phase angles are different. It was not easy to obtain an accurate measured result in the experimental circuit with a short-length conductor, small inducing current and noises in the grounding circuit, i.e. no ideal voltage reference for the measurement.

原稿種別: 英語

PDFファイルサイズ: 1,272 Kバイト