Journal ArticleDOI
Superconducting fault current limiter device based on (Hg,Re)-1223 superconductor
C.A.C. Passos,Marcos Tadeu D’Azeredo Orlando,J.L. Passamai,E. F. Medeiros,F.D.C. Oliveira,Jussara Farias Fardin,Domingos Sávio Lyrio Simonetti +6 more
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TLDR
In this article, a small superconducting current limiter device based on Hg0.8Re0.2Ba2Ca2Cu3O8+δ, (Hg,Re)-1223 ceramic is described.Abstract:
A preliminary study of a small superconducting current limiter device based on Hg0.8Re0.2Ba2Ca2Cu3O8+δ, (Hg,Re)-1223 ceramic is described. A fault current test at 60Hz confirmed a reduction in the density of current value, from 1.55×102to0.82×102Apeak∕cm2. The prospective/limited density of current ratio observed was ∼1.9 for a 0.24cm thick sample, without any damage to the (Hg,Re)-1223 superconductor. A recovery test indicated that the polycrystalline sample kept its superconducting properties and had not shown modifications in its stoichiometry. In conclusion, (Hg,Re)-1223 can be used to build superconducting fault current limiter devices.read more
Citations
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Journal ArticleDOI
Resistive-Type Superconducting Fault Current Limiters: Concepts, Materials, and Numerical Modeling
TL;DR: In this paper, the authors provide an updated review on the state of the art of resistive-type SFCLs, emphasizing on the different approaches for the numerical modeling of their local physical properties, as well as on the already-tested experimental concepts.
Journal ArticleDOI
Pressure study of monoclinic ReO2 up to 1.2 GPa using X-ray absorption spectroscopy and X-ray diffraction.
Fabio Furlan Ferreira,H.P.S. Correa,Marcos Tadeu D’Azeredo Orlando,J.L. Passamai,C.G.P. Orlando,Isabela P. Cavalcante,Flávio Garcia,Edilson Tamura,Luis Gallego Martinez,Jesualdo Luiz Rossi,Francisco Cristóvão Lourenço de Melo +10 more
TL;DR: The crystal and local atomic structure of monoclinic ReO2 (alpha-ReO2) under hydrostatic pressure up to 1.2 GPa was investigated for the first time using bothX-ray absorption spectroscopy and high-resolution synchrotron X-ray powder diffraction and a home-built B4C anvil pressure cell developed for this purpose.
Journal ArticleDOI
Optimal refrigeration of bulk superconducting elements in fault current limiters by using artificial weak zones
TL;DR: In this paper, a finite element method (FEM) based on the thermal and electrical equations describing the behaviour of samples when the normal superconducting transition occurs is used to study the thermal evolution during the whole quenching?recovery process of high-temperature rings with grooves, which act as AWZ.
Journal ArticleDOI
Development and test of a small resistive fault current limiting device based on Hg, Re-1223 and Sm-123 ceramics
C.A.C. Passos,Valdi Antonio Rodrigues,Juliana Nunes Oliveira Pinto,V.T. Abílio,Gabriel Mouzela Silva,Luiz Carlos Machado,Ian Pompermayer Machado,A. A. L. Marins,Leonnam Gotardo Merízio,Paulo Cesar Martins da Cruz,E. J. B. Muri +10 more
TL;DR: In this article, a resistive-type superconductor fault current limiter based on Hg0.82Re0.18Ba2Ca2Cu3O8+d samples and SmBa2Cu 3O7-d ceramics was presented.
DissertationDOI
Resistive-type Superconducting Fault Current Limiter (RSFCL) and its application in power systems
TL;DR: In this paper, the performance and optimal allocation of RSFCLs were investigated in terms of the performance, economic efficiency, and reliability of the overall grids under various fault scenarios and measuring strategies.
References
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Journal ArticleDOI
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TL;DR: In this article, the authors provided support for this conjecture, with the discovery of superconductivity above 130 K in a material containing HgBa2Ca2Cu3O1+x (with three CuO2 layers per unit cell), Hg Ba2CaCu2O6+X (with two O2 layers) and an ordered superstructure comprising a defined sequence of the unit cells of these phases.
Journal ArticleDOI
Superconductivity at 94 K in HgBa 2 Cu0 4+δ
TL;DR: In this article, the same authors reported the synthesis of the related compound HgBa2CuO4+δ (Hg-1201), with only one CuO2 layer per unit cell, and showed that it is superconducting below 94 K.
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Journal ArticleDOI
Fault current limiter based on high temperature superconductors – different concepts, test results, simulations, applications
TL;DR: In this article, a superconducting fault current limiter (SCFCL) is proposed to resist the thermal and mechanical stresses of potential short-circuit currents, which can lead to significant cost savings.