72/84kV乾燥空気絶縁タンク形真空遮断器の開発

  • 斉藤 仁
    (株)日本AEパワーシステムズ スイッチギヤ事業部
  • 長竹 和浩
    (株)日本AEパワーシステムズ スイッチギヤ事業部
  • 小松 秀樹
    (株)日本AEパワーシステムズ スイッチギヤ事業部
  • 竹下 幸宏
    (株)日本AEパワーシステムズ スイッチギヤ事業部
  • 松井 芳彦
    (株)日本AEパワーシステムズ スイッチギヤ事業部
  • 勝又 清仁
    (株)日本AEパワーシステムズ スイッチギヤ事業部
  • 榊 正幸
    (株)日本AEパワーシステムズ スイッチギヤ事業部

書誌事項

タイトル別名
  • Development of 72/84kV Dry Air Insulated Dead Tank Type VCB
  • 72 84kV カンソウ クウキ ゼツエン タンクケイ シンクウ シャダンキ ノ カイハツ

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抄録

As a circuit breaker for over 84kV, SF6 gas circuit breaker (GCB) has been used for a long time, in virtue of its excellent characteristics as arc extinction and insulating medium. Although, SF6 gas has very high global warming potential (GWP) of 23,900, and it was designated to regulation object in COP3 in Kyoto in 1997.<br>A lot of efforts have been done to reduce the amount of SF6 gas usage and emission from conventional equipments. On the other hand, SF6 gas free equipment has been researching and one strong candidate is air-insulated type switchgears with vacuum interrupters. In last few years, air-insulated switchgears, which include GIS, Cubicle type GIS (C-GIS) and dead tank type VCB, have been developed in succession. So far, we have already more than three years operation record for the air-insulated dead tank type VCB, and over 100 units is in-service in power systems. Recently, VCB technology, that is essential for SF6 gas-free equipments, has been advanced in the field of high-voltage, large current interruption and environment-conscious design. In this paper, the advanced dead tank type VCB and its technology is descried.

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