Test Results of a Superconducting Fault Current Limiter Using YBCO Coated Conductor

A single-phase superconducting fault current limiter (SFCL) using a 0.9 m length of YBCO coated conductor (CC) tape was tested in 220 V-60 Hz line for fault current up to 1 kA, operating in 77 K. In this work are presented the I-V experimental curves measured under DC and AC currents for the electri...

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Veröffentlicht in:IEEE transactions on applied superconductivity 2007-06, Vol.17 (2), p.1903-1906
Hauptverfasser: Baldan, C.A., Shigue, C.Y., Lamas, J.S., Filho, E.R.
Format: Artikel
Sprache:eng
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Zusammenfassung:A single-phase superconducting fault current limiter (SFCL) using a 0.9 m length of YBCO coated conductor (CC) tape was tested in 220 V-60 Hz line for fault current up to 1 kA, operating in 77 K. In this work are presented the I-V experimental curves measured under DC and AC currents for the electrical characterization of the CC tape in order to design a low voltage current limiter. The experimental setup is described and the test results are presented for a unit conducting a steady nominal AC current of 50 A and also during the fault time (1 to 5 cycles.) The performance of the CC-based SFCL providing the limiting resistance developed in the whole tape length after few milliseconds of the beginning of the fault was analyzed.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2007.897771