Demonstration Test of Triaxial Superconducting Cable System Installed in Commercial Chemical Plant Grid

A triaxial high-temperature superconducting (HTS) cable for practical cable systems was installed in the chemical plant of a private company (BASF Japan), and a large-scale demonstration test was performed. An HTS (REBa
₂
Cu
₃
O
_7-δ
) triaxial cable with a length of 200 m was used, and it was laid at a height of approximately 6 m above the ground and cooled using circulating liquid nitrogen. The test was performed from November 2020 to September 2021. In this paper, we report the results of the demonstration test and the energy-saving effects of the cable system.