Abstract

One of the most important factor for resistive-type fault current limiters is uniform voltage distribution under fault condition. Homogeneous distribution of I <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">c</sub> and resistance of nonsuperconducting state in the longitudinal direction are essential for uniform quenching. Recently, we have succeeded in manufacturing the highly homogeneous superconducting RE BCO coated conductor. In this paper, we report the voltage distribution in our coated conductor under fault condition, at 50 Hz for a half cycle. The experimental results show that applied voltage, which is necessary to quench over the entire length of sample, depends on I <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">c</sub> and normal state resistance on T <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">c</sub> .

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