New Calibration Technique Combined with Actual Charge of Partial Discharge in GIS using Three-dimensional Electromagnetic Analysis

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: 2012/05/01

タイトル(英語): New Calibration Technique Combined with Actual Charge of Partial Discharge in GIS using Three-dimensional Electromagnetic Analysis

著者名: Toshihiro Hoshino (Toshiba Corporation), Shiro Maruyama (Toshiba Corporation)

著者名(英語): Toshihiro Hoshino (Toshiba Corporation), Shiro Maruyama (Toshiba Corporation)

キーワード: finite-difference time-domain method，partial discharge，UHF method，actual charge，apparent charge，gas-insulated switchgear

要約(英語): Upgraded three-dimensional electromagnetic analysis allows us to calculate the output of the PD-detecting coupler with a dimension of voltage, which can newly propose analytical sensitivity lines for the accurate calibration of partial discharge (PD) instead of experimental ones obtained by the synchronous measurement between UHF method and IEC 60270 standard. Consequently, the fundamental research point out that the actual charge of PD can be estimated from the output of the PD-detecting coupler under regulated conditions of two types of PD sources for the first time since our previous paper was submitted. Introducing the analytical sensitivity line based on the actual charge reveals that the apparent charge obtained by the experimental sensitivity line might be underestimated compared to the actual charge, even if the measurement principle of IEC 60270 is followed. Therefore, the newly-developed calibration technique combined with the actual charge has a significant impact on accurate estimation of the magnitude of PD even from the electromagnetic wave in VHF/UHF/EHF ranges rather than the displacement current based on IEC 60270 standard.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.132 No.5 （2012） 特集：電力・エネルギー分野を支える変電技術の新展開

本誌掲載ページ: 493-499 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/132/5/132_5_493/_article/-char/ja/