c-Axis YBCO domains for current limiting applications
| Autor: | D Buzon, Robert Tournier, Pascal Tixador, L. Porcar, D. Isfort, E. Floch, D. Bourgault, Xavier Chaud |
|---|---|
| Přispěvatelé: | Consortium de Recherches pour l'Emergence des Technologies Avancées (CRETA), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Centre National de la Recherche Scientifique (CNRS), Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire national des champs magnétiques intenses - Grenoble (LNCMI-G), Université Joseph Fourier - Grenoble 1 (UJF)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre de Recherches sur les Très Basses Températures (CRTBT), Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Université Joseph Fourier - Grenoble 1 (UJF), Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées |
| Rok vydání: | 2003 |
| Předmět: |
[PHYS]Physics [physics]
010302 applied physics Superconductivity Materials science Condensed matter physics Limiting current Energy Engineering and Power Technology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Current limiting 0103 physical sciences Fault current limiter Electrical and Electronic Engineering Electric current 010306 general physics Current density Type-II superconductor ComputingMilieux_MISCELLANEOUS Voltage |
| Zdroj: | Physica C: Superconductivity Physica C: Superconductivity, North-Holland, 2003, 386, pp.467-473. ⟨10.1016/S0921-4534(02)02215-3⟩ |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/s0921-4534(02)02215-3 |
| Popis: | A superconducting fault current limiter using YBCO single domains requires long elements cut along the ab -planes or along the c -axis. These elements have to be assembled in series in order to produce a limited fault current after the quench to the resistive state under the network voltage. The superconductor total length is much smaller with c -axis elements because their high resistivity after transition contributes to a very high electric field during the current limitation. The critical current density has to be decreased in order to be sure that the Joule effect related to the limiting current does not increase too much the material temperature before its interruption by a current breaker. The inhomogeneously oxygenated YBCO elements limit the current even if the only surface layer is superconducting and produce an electric field up to 5000 V/m. A homogeneous oxygenation without macrocrack is obtained when the thickness along the ab -planes is thin. Several elements have been tested by applying a 20 ms duration fault current in a liquid nitrogen bath at T =77 K and above. |
| Databáze: | OpenAIRE |
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