TY - JOUR
T1 - Recent development of an HTS power cable using YBCO tapes
AU - Yagi, M.
AU - Mukoyama, S.
AU - Hirano, H.
AU - Amemiya, N.
AU - Ishiyama, A.
AU - Nagaya, S.
AU - Kashima, N.
AU - Shiohara, Y.
N1 - Funding Information:
This study was carried out as Collaborative Research and Development of Fundamental Technologies for Superconductive Application of the Ministry of Economy, Trade and Industry (METI) and was cosigned by the New Energy and Industrial Technology Development Organization (NEDO). All YBCO tapes were supplied by Chubu Electric Power Company, which developed and manufactured them in the project. We wish to express our gratitude to all parties concerned.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2007/10/1
Y1 - 2007/10/1
N2 - Overcurrent characteristics and reduction of AC loss are essential for high temperature superconducting (HTS) cable in a real grid. AC loss in an HTS conductor using YBCO could be potentially small but protection for overcurrent was needed. A 0.1 mm thick copper tape soldered to the YBCO tape was effective as protection from overcurrent and did not affect the increase in AC loss. The 2 m HTS conductor with Cu strands of 250 mm2 and YBCO tapes with copper was fabricated. This conductor could withstand overcurrent of 31.5 kA for 2 s. To reduce AC loss, 10 mm wide YBCO tapes were divided into five strips using YAG laser. Using narrower strips and decreasing the space between the strips were effective in reducing AC loss. In consideration of this configuration, a three-layer conductor was fabricated, and AC loss of 0.054 W/m at 1 kA rms was achieved even though it had a small outer diameter of 19.6 mm.
AB - Overcurrent characteristics and reduction of AC loss are essential for high temperature superconducting (HTS) cable in a real grid. AC loss in an HTS conductor using YBCO could be potentially small but protection for overcurrent was needed. A 0.1 mm thick copper tape soldered to the YBCO tape was effective as protection from overcurrent and did not affect the increase in AC loss. The 2 m HTS conductor with Cu strands of 250 mm2 and YBCO tapes with copper was fabricated. This conductor could withstand overcurrent of 31.5 kA for 2 s. To reduce AC loss, 10 mm wide YBCO tapes were divided into five strips using YAG laser. Using narrower strips and decreasing the space between the strips were effective in reducing AC loss. In consideration of this configuration, a three-layer conductor was fabricated, and AC loss of 0.054 W/m at 1 kA rms was achieved even though it had a small outer diameter of 19.6 mm.
KW - AC loss
KW - HTS conductor
KW - High-T superconducting (HTS) cable
KW - Overcurrent
KW - YBCO
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U2 - 10.1016/j.physc.2007.04.255
DO - 10.1016/j.physc.2007.04.255
M3 - Article
AN - SCOPUS:34548392791
SN - 0921-4534
VL - 463-465
SP - 1154
EP - 1158
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - SUPPL.
ER -