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66 kV-class high-Tc superconducting fault current limiter magnet model coil experiment

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9 Author(s)
Yazawa, T. ; Toshiba Corp., Yokohama, Japan ; Koyama, H. ; Tasaki, K. ; Kuriyama, T.
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As a part of the Super-conductive AC Equipment (Super-ACE) project being performed from 2000 to 2004, an AC magnet for a fault current limiter is being developed. This research focuses on fundamental technical items essential for a 66 kV class fault current limiter magnet wound with high-Tc superconductors operating at around 65 K. These items are high current capacity, high voltage insulation and sub-cooled nitrogen cooling. This paper describes experimental results obtained for a model coil wound with four-parallel Bi2223 tape conductors. Voltage-current characteristics, equal current distribution among tape conductors and overvoltage behavior are evaluated.

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Applied Superconductivity, IEEE Transactions on  (Volume:13 ,  Issue: 2 )