{"product_id":"ieej-ewc13025","title":"油隙欠陥を含む絶縁紙-絶縁油複合絶縁系における連続課電時の部分放電基礎特性","description":"\u003cp\u003e\u003cstrong\u003eカテゴリ: \u003c\/strong\u003e研究会(論文単位)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e論文No: \u003c\/strong\u003eEWC13025\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eグループ名: \u003c\/strong\u003e【B】電力・エネルギー部門 電線・ケ－ブル研究会\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e発行日: \u003c\/strong\u003e2013\/11\/01\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eタイトル(英語): \u003c\/strong\u003eThe fundamental partial discharge characteristics of oil impregnated insulation system with an oil gap under continuous AC voltage application. \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e著者名: \u003c\/strong\u003e岩下 雄宇(電力中央研究所),栗原 隆史(電力中央研究所),高橋 俊裕(電力中央研究所),岡本 達希(電力中央研究所)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e著者名(英語): \u003c\/strong\u003eIwashita Yu(Central Research Institute of Electric Power Industry),Kurihara Takashi(Central Research Institute of Electric Power Industry),Takahashi Toshihiro(Central Research Institute of Electric Power Industry),Okamoto Tatsuki(Central Research Institute of Electric Power Industry)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eキーワード: \u003c\/strong\u003eＯＦケーブル|劣化診断|部分放電|油浸絶縁紙|油隙|oil filled cable|degradation diagnosis|partial discharge|oil impregnated insulation system|oil gap\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e要約(日本語): \u003c\/strong\u003e従来，撤去品の解体調査結果等からOFケーブルの絶縁劣化はかなり緩やかであると考えられてきたが，近年，超高圧OFケーブル接続部での絶縁破壊事故が発生している。このため，OFケーブルの代表的な劣化診断手法の一つである油中ガス分析の更なる精度向上に加え，新たな劣化診断手法の確立のため，当所ではケーブル内部で発生した部分放電パルスを電気的に検出する部分放電測定に着目し，OFケーブルの部分放電測定による劣化診断技術の実用化に向けた各種研究に取組んでいる。この一環として，今回，油隙を含む絶縁紙-絶縁油複合絶縁系の試料を用いて,OFケーブル接続部における部分放電基礎特性について実験的検討を実施した。\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e要約(英語): \u003c\/strong\u003eThe basic partial discharge characteristics of oil impregnated insulation system with an oil gap were investigated. At first, we assumed an oil gap as a defect of OF cable and effect of the oil gap conditions such as its size, depth, location and volume to partial discharge inception electric field(PDIEF) were investigated. Breakdown occurred at an oil gap in all test samples. Then, we selected one of the oil gap conditions that gave the lowest PDIEF, and investigated its time transition of partial discharge characteristics under continuous AC voltage application. As a result, partial discharges continued at the AC voltage that was lower than the partial discharge inception voltage and the test sample broke down after 376 hours. Partial discharges occurred around the timing of the zero crossing of the applied voltage, and their characteristics such as charge magnitude and number didn’t change until about 4 hours before breakdown. Just before breakdown, partial discharge magnitude and number abruptly increased and partial discharges with larger magnitude began to occur at the timing closer to the peaks of the AC voltage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e原稿種別: \u003c\/strong\u003e日本語\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePDFファイルサイズ: \u003c\/strong\u003e1,242 Kバイト\u003c\/p\u003e","brand":"IEEJ-PDF","offers":[{"title":"PDFダウンロード（一般価格330円\/会員価格220円） \/ A4 \/ 6","offer_id":46362746585327,"sku":"IEEJ-EWC13025-PDF","price":330.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/9512\/2159\/files\/IEEJ-PDF_fa5f44c2-00ce-46e1-9335-7945dd2ae8f4.png?v=1743638280","url":"https:\/\/ieej.bookpark.ne.jp\/products\/ieej-ewc13025","provider":"電気学会 電子図書館","version":"1.0","type":"link"}