Experimental Considerations for the Dielectric Characteristics of Inhomogeneous High Temperature SF6 Gas in a Gas Circuit Breaker

• Uchii Toshiyuki

  Toshiba Corporation

• Iwata Koichi

  Toshiba Corporation

• Kawano Hiromichi

  Toshiba Corporation

• Nakamoto Tetsuya

  Toshiba Corporation

• Suzuki Katsumi

  Toshiba Corporation

書誌事項

タイトル別名

• Experimental Considerations for the Dielectric Characteristics of Inhomogeneous High Temperature SF₆ Gas in a Gas Circuit Breaker

抄録

The purpose of the present paper is to show the dielectric characteristics of inhomogeneous hot SF₆ gas in a dead-tank-type gas circuit breaker (GCB) experimentally. High-temperature and low-density SF₆ gas generated during a heavy current interruption is distributed inhomogeneously in the grounded tank, and can strongly threaten the dielectric capability of the GCB. Few studies, however, have been carried out on the dielectric characteristics of the inhomogeneous hot gas. Using small gap discharges, the hot gas behavior of a GCB model, having breakdown or no breakdown occurring, was investigated. As a result, it was found that there was little or no effect on breakdown voltages of the cool gas in the breakdown paths. This suggests that the breakdown voltage of inhomogeneous hot gas could be obtained as the applied voltage at which the electrical field strength equals E_crit of local hot gas at the concerned location.

収録刊行物

• 電気学会論文誌Ｂ（電力・エネルギー部門誌）

  電気学会論文誌Ｂ（電力・エネルギー部門誌） 121 (8), 961-966, 2001

  一般社団法人 電気学会

キーワード

• gas circuit breaker
• dielectric breakdown
• hot gas
• inhomogeneousness
• dielectric capability
• small gap

詳細情報

• CRID: 1390001204604493184
• NII論文ID: 130006841015
• NII論文ID: 10006532507
• NII書誌ID: AN10136334
• DOI: 10.1541/ieejpes1990.121.8_961
• ISSN: 13488147
• ISSN: 03854213
• NDL書誌ID: 5854114
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5854114
• Web Site: https://www.jstage.jst.go.jp/article/ieejpes1990/121/8/121_8_961/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可