The short-circuit test results of 6.9 kV/2.3 kV 400 kVA-class YBCO model transformer

被引：7

作者：

Tomioka, A. ^{[1
]}

Otonari, T. ^{[1
]}

Ogata, T. ^{[1
]}

Iwakuma, M. ^{[1
]}

Okamoto, H. ^{[2
]}

Hayashi, H. ^{[2
]}

Iijima, Y. ^{[3
]}

Saito, T. ^{[3
]}

Gosho, Y. ^{[4
]}

Tanabe, K. ^{[4
]}

Izumi, T. ^{[4
]}

Shiohara, Y. ^{[4
]}

机构：

[1] Kyushu Univ, Nishi Ku, Fukuoka 8190395, Japan

[2] Kyushu Elect Power Co Inc, Minami Ku, Fukuoka 8158520, Japan

[3] Fujikura Ltd, Sakura Ku, Chiba 2858550, Japan

[4] Int Superconduct Technol Ctr, Koto Ku, Tokyo 1350062, Japan

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2011年 / 471卷 / 21-22期

关键词：

Superconducting transformer; YBCO; Short-circuit test;

D O I：

10.1016/j.physc.2011.05.197

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We are developing an elemental technology for 66 kV/6.9 kV 20 MVA-class power transformer with YBCO conductors. The protection of short-circuit technology is one of the elemental technologies for HTS transformer. Since short-circuit current is much higher than critical current of YBCO tape, there is a possibility that superconducting characteristics may be damaged during short-circuit period. We made a conductor to compose the YBCO tape with copper tape. We manufactured 6.9 kV/2.3 kV 400 kVA-class YBCO model transformer using this conductor and performed short-circuit current test. The short-circuit current of primary winding was 346 A which was about six times larger than the rated current. The I-V characteristics of the winding did not change before and after the test. We may consider this conductor withstands short-circuit current. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1374 / 1378

页数：5

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