電鉄用変電所接地システムのサージインピーダンスと周波数領域インピーダンス

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2016/12/01

タイトル(英語): Relationship between Surge Impedance and Impedance in Frequency Domain of Earthing System in Traction Substation

著者名: 田中　弘毅（西日本旅客鉄道（株）／同志社大学），山下　博史（西日本旅客鉄道（株）），川原　敬治（西日本旅客鉄道（株）），長岡　直人（同志社大学）

著者名(英語): Hiroki Tanaka (West Japan Railway Company/Doshisha University), Hiroshi Yamashita (West Japan Railway Company), Keiji Kawahara (West Japan Railway Company), Naoto Nagaoka (Doshisha University)

キーワード: 雷サージ，接地インピーダンス，サージインピーダンス，数値ラプラス変換，電鉄用変電所　　lightning surge，earthing impedance，surge impedance，numerical Laplace transform，traction substation

要約(英語): The relationship between “surge impedance”, which is defined as the ratio between the maximum transient voltage and current in a time domain, and “impedance” in the frequency domain is discussed based on a set of measured transient responses of an earthing circuit in a traction substation. The frequency characteristics of the results are numerically determined using linearized Laplace transform (LLT). The results indicate that the rise time of the injected impulse current is a key parameter that determines the relationship between the surge impedance and the impedance in a frequency domain. The investigation shows that the surge impedance which can be easily obtainable in a field test is useful for characterizing the transient grounding characteristic by appropriately utilizing the relationship.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.136 No.12 （2016）

本誌掲載ページ: 971-977 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/ieejias/136/12/136_971/_article/-char/ja/