直流電鉄変電所における整流器交流側電路地絡検出手法の検討

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: 2022/02/01

タイトル(英語): Examination of Rectifier AC Side Electric Circuit Ground Fault Detection Method in DC Electric Railway Substation

著者名: 伊東　和彦（西日本旅客鉄道（株）），松井　正司（西日本旅客鉄道（株）），西村　康之（西日本旅客鉄道（株）），長森　正樹（津田電気計器（株）），川原　敬治（津田電気計器（株）），森田　岳（公益財団法人鉄道総合技術研究所），吉井　剣（公益財団法人鉄道総合技術研究所），前田　佳伸（近畿大学総合理工学研究科）

著者名(英語): Kazuhiko Ito (West Japan Railway Company), Masashi Matsui (West Japan Railway Company), Yasuyuki Nishimura (West Japan Railway Company), Masaki Nagamori (Tsuda Electric Meters Co., Ltd.), Keiji Kawahara (Tsuda Electric Meters Co., Ltd.), Gaku Morita (Railway Technical Research Institute), Tsurugi Yoshii (Railway Technical Research Institute), Yoshinobu Maeda (Kindai University)

キーワード: 直流電鉄変電所，整流器用変圧器，整流器，交流電路，地絡保護　　DC electric railway substation，rectifier transformer，rectifier，AC electric circuit，ground fault protection

要約(英語): There are no ground fault protection devices in the AC circuit between the rectifier transformer and rectifier of DC electric railway substations. Therefore, the ground faults in the AC electric circuit are expected to be protected by overcurrent relays or DC ground fault overvoltage relays (64P) installed in the upper system. However, these protections are inadequate, so we examined methods to detect ground faults in the AC circuit between the rectifier transformer and rectifier. Thus, it was found that the ground fault current included a third harmonic current that was absent when there were no ground faults. Therefore, we created a prototype device to extract the third harmonic current, and confirmed that ground faults in the AC electric circuit between the rectifier transformer and rectifier could be detected by artificial ground fault tests.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.142 No.2 （2022）

本誌掲載ページ: 111-118 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/142/2/142_111/_article/-char/ja/