Breakdown Characteristics of Gas-filled Transformers and Reactors under Lightning and Switching Impulse Voltages

カテゴリ: 研究会(論文単位)

論文No: HV18113

グループ名: 【B】電力・エネルギー部門 高電圧研究会

発行日: 2018/11/02

タイトル(英語): Breakdown Characteristics of Gas-filled Transformers and Reactors under Lightning and Switching Impulse Voltages

著者名: Yamamoto Takashi(Tokyo Electric Power Company Holdings),Ueta Genyo(Tokyo Electric Power Company Holdings),Okabe Shigemitsu(Tokyo Electric Power Company Holdings),Yoshida Ikki(Tokyo Electric Power Company Power Grid)

著者名(英語): Takashi Yamamoto(Tokyo Electric Power Company Holdings),Genyo Ueta(Tokyo Electric Power Company Holdings),Shigemitsu Okabe(Tokyo Electric Power Company Holdings),Ikki Yoshida(Tokyo Electric Power Company Power Grid)

キーワード: gas-filed transformer|gas-filled shunt reacter|insulation characteristics|lightning impulse|switching impulse|gas-filed transformer|gas-filled shunt reacter|insulation characteristics|lightning impulse|switching impulse

要約(日本語): This paper deals with the breakdown voltage characteristics of gas-filled transformers and reactors. To obtain their insulation characteristics, this study has used the models simulating their insulating elements: inter-turn and section-to-section insulation. As the results, the measured 50% breakdown voltages of the inter-turn model and the section-to-section model under the standard lightning impulse voltages are 1.06 and 1.13 higher than those under the standard switching impulse voltages, respectively. The mechanism of the above-mentioned facts is discussed, in terms of the formative time lag of the discharge.

要約(英語): This paper deals with the breakdown voltage characteristics of gas-filled transformers and reactors. To obtain their insulation characteristics, this study has used the models simulating their insulating elements: inter-turn and section-to-section insulation. As the results, the measured 50% breakdown voltages of the inter-turn model and the section-to-section model under the standard lightning impulse voltages are 1.06 and 1.13 higher than those under the standard switching impulse voltages, respectively. The mechanism of the above-mentioned facts is discussed, in terms of the formative time lag of the discharge.

原稿種別: 英語

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