Basic Characteristics of High-<i>T<sub>c</sub></i> Superconductor as a Current Limiting Elements

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  • 高温超電導体の限流効果の基礎特性
  • コウオン チョウデンドウタイ ノ ゲンリュウ コウカ ノ キソ トクセイ

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Abstract

This paper shows the basic characteristics of a current limiting element for the power system using Y-type high-Tc superconductor. (1) YBa2Cu3Ox-type superconductor was produced, which size was 4.7×1.5×47mm. (2) Current I and voltage V were measured under the low temperature of 50_??_100K. (3) The flow resistance and the resistance of the element were defind and evaluated from the I-V characteristics obtained under the conditions of lower temperature than the critical value Tc, and larger current density than the critical value Jc. (4) The resistance value change due to temperature rise also evaluated under the larger current than the critical current. (5) A schematic calculation was tried for the practical use in some power system condition.

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