@article{oai:nagoya.repo.nii.ac.jp:02001607, author = {Hayakawa, Naoki and Yamakami, Koki and Masuda, Takato and Kojima, Hiroki}, issue = {5}, journal = {IEEE Transactions on Applied Superconductivity}, month = {Aug}, note = {For extra-high-voltage high-temperature superconducting (HTS) cables, not only high electrical insulation performance but also low dielectric loss is required. Therefore, we focus on a porous synthetic paper with lower dielectric loss, e.g., Tyvek polyethylene nonwoven fabric, than that of polypropylene laminated paper (PPLP), which has been used for a conventional HTS cable insulation system. In this paper, we compare partial discharge inception characteristics for different liquid nitrogen/synthetic paper composite insulation systems. The partial discharge inception electric field strength in the composite insulation system depends on the electric field strength in the porous area of synthetic paper.}, title = {Dielectric characteristics of liquid nitrogen / synthetic paper composite insulation system for extra high voltage HTS cable}, volume = {31}, year = {2021} }