Development of a REBCO Superconducting Transformer With Current Limiting Function

被引：13

作者：

Iwakuma, M. ^{[1
]}

Tomioka, A. ^{[1
]}

Otonari, T. ^{[1
]}

Ogata, T. ^{[1
]}

Tsutsumi, T. ^{[1
]}

Sato, S. ^{[1
]}

Hayashi, H. ^{[2
]}

Okamoto, H. ^{[2
]}

Iijima, Y. ^{[3
]}

Saitoh, T. ^{[3
]}

Aoki, Y. ^{[4
]}

Koizumi, T. ^{[4
]}

Hasegawa, T. ^{[4
]}

Ohkuma, T. ^{[5
]}

Gosho, Y. ^{[5
]}

Yamada, Y. ^{[5
]}

Izumi, T. ^{[5
]}

Shiohara, Y. ^{[5
]}

机构：

[1] Kyushu Univ, Res Inst Superconductor Sci & Syst, Fukuoka 8190395, Japan

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

[3] Fujikura Ltd, Tokyo 1358512, Japan

[4] Showa Cable Syst Co Ltd, Sagamihara, Kanagawa 2520253, Japan

[5] Superconduct Res Lab, Tokyo 1350062, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2011年 / 21卷 / 03期

关键词：

Current limiter; REBCO; superconductor; transformer; POWER TRANSFORMERS;

D O I：

10.1109/TASC.2010.2089592

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A single-phase 10 kVA transformer was designed and fabricated with RE(1)Ba(2)Cu(3)0O(7-8) (REBCO, RE: Rare Earth) superconducting tapes to quantitatively investigate the transition phenomenon of REBCO superconducting tapes to normal state due to a fault excess current. The voltage ratio was 1: 1 and the rated voltage was 393 V. It had four windings. The primary and secondary windings had auxiliary windings in addition to main ones respectively. The main and auxiliary windings were connected in parallel in the both sides. The addition of the auxiliary windings made it possible to observe the induced normal resistances in the respective main ones individually. First usual performance tests were carried out and a stable operation as designed was confirmed. In steady state almost all of the current flowed in the main windings due to the small leakage reactance between them. At a sudden short-circuit test, the main windings quenched due to excess current over the critical current and the current was reduced to one fortieth as compared with the case of no current limiting function. It was clarified the whole of the main windings did not shift to normal state though the current exceeded the critical current all over the length and the induced normal zone was almost proportional to the primary voltage.

引用

页码：1405 / 1408

页数：4

共 4 条

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