Investigation of Partial Discharge Characteristics inside Vacuum Interrupter with Various Floating Shield Potentials

カテゴリ: 研究会(論文単位)

論文No: EPP22107,SP22042,HV22088

グループ名: 【A】基礎・材料・共通部門 放電・プラズマ・パルスパワー/【B】電力・エネルギー部門 開閉保護/【B】電力・エネルギー部門 高電圧合同研究会

発行日: 2022/11/18

タイトル(英語): Investigation of Partial Discharge Characteristics inside Vacuum Interrupter with Various Floating Shield Potentials

著者名: Yadana Kyaw Khin(Kanazawa University),Nakano Yusuke(Kanazawa University),Tanaka Yasunori (Kanazawa University),Ishijima Tasuo(Kanazawa University),Nakano Shusaku (Hitachi Industrial Equipment System Co.,Ltd. ),Kobayashi Masato(Hitachi Industrial Equipment

著者名(英語): Khin Yadana Kyaw(Kanazawa University),Yusuke Nakano(Kanazawa University),Yasunori Tanaka(Kanazawa University),Tasuo Ishijima(Kanazawa University),Shusaku Nakano(Hitachi Industrial Equipment System Co.,Ltd. ),Masato Kobayashi(Hitachi Industrial Equipment

キーワード: vacuum interrupter|partial discharge|floating shield potential|vacuum degree|vacuum leakage|vacuum interrupter|partial discharge|floating shield potential|vacuum degree|vacuum leakage

要約(日本語): The safe and stable operation of vacuum circuit breakers plays an important role in the power system’s reliability. Beyond the expected lifetime, vacuum interrupters commonly lose the vacuum with a higher leakage rate, resulting in a decrease in discharge voltage and eventual failure of the vacuum circuit breakers. In this study, an experimental setup for detecting partial discharge and vacuum leakage inside a vacuum interrupter was developed by arbitrarily regulating the internal pressure through several valves. The shield potential was varied with the combinations of connected capacitance, whose values were set at about 50% and 60% of the applied voltage. From the experimental results, the discharge characteristics at various floating shield potentials at each internal pressure inside the vacuum interrupter were discussed.

要約(英語): The safe and stable operation of vacuum circuit breakers plays an important role in the power system’s reliability. Beyond the expected lifetime, vacuum interrupters commonly lose the vacuum with a higher leakage rate, resulting in a decrease in discharge voltage and eventual failure of the vacuum circuit breakers. In this study, an experimental setup for detecting partial discharge and vacuum leakage inside a vacuum interrupter was developed by arbitrarily regulating the internal pressure through several valves. The shield potential was varied with the combinations of connected capacitance, whose values were set at about 50% and 60% of the applied voltage. From the experimental results, the discharge characteristics at various floating shield potentials at each internal pressure inside the vacuum interrupter were discussed.

本誌: 2022年11月21日-2022年11月22日放電・プラズマ・パルスパワー/開閉保護/高電圧合同研究会-1

本誌掲載ページ: 79-83 p

原稿種別: 英語

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