Development of 3-in-One High Temperature Superconducting Cable

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  • ３心一括型超電導ケーブルの開発
  • 3シン イッカツガタ チョウデンドウケーブル ノ カイハツ

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Abstract

A three-in-One HTS cable has been developed. Its cable core is composed of a conductor and a shield wound with BSCCO wires and electrical insulation of the PPLP. The three cable cores are covered in thermal insulated stainless corrugated pipes. Recently, BSCCO wires were drastically innovated by virtue of a newly developed process named as Controlled Over-Pressure (CT-OP). As a new cable technology, a 350m thermal insulation pipe was tested for 7 months to find that a life of the vacuum property is more than 10 years. The HTS cable with tension members was designed for installation into an underground duct. In addition, a fault current of 23kA, 0.63sec, was applied to a sample cable with no damage on the BSCCO wires and the cable insulation. These technologies will be applied to Albany project in USA.

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