大容量変圧器の変圧器通過故障遮断時のTRV波形の検討

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: 2013/05/01

タイトル(英語): A Study on Transient Recovery Voltage for Transformer Limited Fault with Large Capacity Transformer

著者名: 楫野　宏樹（三菱電機（株）），伊藤　弘基（三菱電機（株）），前川　俊浩（東京電力（株）），亀井　健次（三菱電機（株）），出丸　俊樹（三菱電機（株）），新海　拡（三菱電機（株））

著者名(英語): Hiroki Kajino (Mitsubishi Electric Corporation), Hiroki Ito (Mitsubishi Electric Corporation), Toshihiro Maegawa (Tokyo Electric Power Company), Kenji Kamei (Mitsubishi Electric Corporation), Toshiki Idemaru (Mitsubishi Electric Corporation), Hiromu Shinkai (Mitsubishi Electric Corporation)

キーワード: 変圧器通過故障，遮断器，過渡回復電圧，電圧上昇率，振幅率，周波数特性分析　　transformer limited fault，circuit breaker，transient recovery voltage，rate of rise of TRV，amplitude factor，frequency response analysis

要約(英語): Severe Transient Recovery Voltage (TRV) after the current interruption may appear when a fault occurs in the immediate vicinity of a power transformer without any appreciable capacitance between the transformer and the circuit breaker. These faults are called Transformer Limited Fault (TLF) that may cause higher Rate-of-Rise of TRV (RRRV) than the standard values specified for terminal fault test duties T10 and T30 of IEC 62271-100. TRVs for TLF conditions with large capacity and high voltage shell type power transformer were measured by the capacitor current injection method. The impedance frequency responses were also measured by the Frequency Response Analysis (FRA) and then TRVs were reproduced with the simplified transformer model consisting of a series connection of parallel circuit of inductance, capacitance and resistance whose parameters were evaluated by the FRA measurements. The reproduced TRV showed good agreement with the measured TRV even though deformation from a sinusoidal shape wave was observed due to superposition of higher frequency components on the TRV.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.133 No.5 （2013） 特集：大電流現象の数値シミュレーション技術の新展開

本誌掲載ページ: 473-479 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/133/5/133_473/_article/-char/ja/