Development of a 10 m long 1 kA 66/77 kV YBCO HTS cable with low AC loss and a joint with low electrical resistance

被引：17

作者：

Yagi, Masashi ^{[1
]}

Mukoyama, Shinichi ^{[1
]}

Amemiya, Naoyuki ^{[2
]}

Kashima, Naoji ^{[3
]}

Nagaya, Shigeo ^{[3
]}

Shiohara, Yuh ^{[4
]}

机构：

[1] Furukawa Elect Corp Ltd, Energy Transmiss Res Dept, Ecol & Energy Lab, Chiba 2908555, Japan

[2] Kyoto Univ, Grad Sch Engn, Dept Elect Engn, Nishikyo Ku, Kyoto 6158510, Japan

[3] Chubu Elect Power Co Inc, Midori Ku, Nagoya, Aichi 4598522, Japan

[4] Supercond Res Lab, Koto Ku, Tokyo 1350062, Japan

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2009年 / 22卷 / 08期

关键词：

POWER TRANSMISSION CABLES; COATED CONDUCTORS; PROJECT; PROGRESS; SYSTEM; MVA;

D O I：

10.1088/0953-2048/22/8/085003

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have developed high-T(c) superconducting (HTS) cables using YBCO tapes. A 10 mm-wide YBCO tape was divided into five strips using a YAG laser to reduce AC loss. A 0.3 m conductor and a 1 m conductor were fabricated achieving AC losses at 1 kA(rms) and 50 Hz of 0.054 W m(-1) and of 0.048 W m(-1), respectively. Based on the successful AC loss reduction in the 0.3 and 1 m conductors, we fabricated a 10 m HTS cable with a three-layer HTS conductor, electrical insulation, and a one-layer HTS shield. The AC loss in this 10 m HTS conductor was 0.090 W m(-1) at 1 kA(rms) and 50 Hz. An HTS cable joint was designed and fabricated that included a three-layer HTS conductor and a one-layer HTS shield. Joint resistance of 5.2 n Omega for the HTS conductor and that of 10 n Omega for the HTS shield were achieved. The HTS cable joint was compact and had sufficient withstand voltage properties for 66/77 kV. In addition, we also confirmed the efficiency of joint construction. Moreover, a 20 m long HTS cable was successfully constructed and tested in January 2008. This HTS cable consisted of two 10 m HTS cables and the HTS cable joint. One 10 m HTS cable using HoBCO was made by Sumitomo, and the HTS cable joint and the other 10 m cable using IBAD YBCO were made by Furukawa and Chubu. The electrical resistance of the HTS cable joint was less than 10 n Omega, and the 20 m HTS cable including the joint withstood an over-current of 31.5 kA(rms) whose duration was 2 s.

引用

页数：9