Development and test of a small resistive fault current limiting device based on Hg, Re-1223 and Sm-123 ceramics

Development and test of a small resistive fault current limiting device based on Hg, Re-1223 and Sm-123 ceramics

Several reports describing Superconducting Fault Current Limiter (SFCL) containing members of the bismuth or yttrium ceramics were already described. However, none of these included the mercury and samarium cuprates. Consequently, we have conducted a study of a resistive-type superconductor fault cu...

Full description

Saved in:
Bibliographic Details
Published in:Materials research (São Carlos, São Paulo, Brazil) Vol. 17; no. suppl 1; pp. 28 - 32
Main Authors: Passos, Carlos Augusto Cardoso, Rodrigues, Valdi Antonio, Pinto, Juliana Nunes Oliveira, Abilio, Vinícius Toneto, Silva, Gabriel Mouzela, Machado, Luiz Carlos, Machado, Ian Pompermayer, Marins, Antonio Augusto Lopes, Merízio, Leonnam Gotardo, Cruz, Paulo Cesar Martins da, Muri, Emanuel José Bassani
Format: Journal Article
Language:English
Published: ABM, ABC, ABPol 01-08-2014
Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
Subjects:
CERAMICS
COPPER OXIDE
CURRENT
Current limiters
Devices
ELECTRICAL CONDUCTIVITY
ELECTRONIC PRODUCTS
Electronics
ENGINEERING, CHEMICAL
fault current limiter
Faults
Hg,Re-1223
High-Tc
MATERIALS SCIENCE, MULTIDISCIPLINARY
Mercury (metal)
METALLURGY & METALLURGICAL ENGINEERING
protective device
Samarium
Sm-123
SUPERCONDUCTIVITY
Sm-123
High-Tc
Hg,Re-1223
protective device
fault current limiter
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Several reports describing Superconducting Fault Current Limiter (SFCL) containing members of the bismuth or yttrium ceramics were already described. However, none of these included the mercury and samarium cuprates. Consequently, we have conducted a study of a resistive-type superconductor fault current limiter based on Hg sub(0.82) Re sub(0.18) Ba sub(2) Ca sub(2) Cu sub(3) O sub(8+d) samples and SmBa sub(2) Cu sub(3) O sub(7-d) ceramics. All polycrystalline samples were prepared by solid-state reaction method using commercial oxide and carbonate powders. The superconducting ceramic with 2.4 x 2.6 x 6.0 mm super(3) dimensions was set up such that the electrical current flew through the area of 2.6 x 6.0 mm super(2). All measurements were done at 77K and without applied magnetic field (H sub(app)= 0). In the case mercury sample, the fault current of 16.1 A sub(peak) was reduced to 8.1 A sub(peak) by the superconducting element and sustained for 100 ms. The prospective/limited of current ratio observed in this experiment was ~ 2.0, as considered a 2.4 mm pellet thickness. When the test was realized with the samarium sample, the prospective/limited current ratio observed was approximately 1.2, for same ceramic thickness. The tests confirmed the capability of the resistive type SFCL to limit the fault current. These results open the possibility of future investigations into SFCL devices based on those superconducting ceramics in low power electronics and electrical motor.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1516-1439
1980-5373
1980-5373
DOI:10.1590/S1516-14392014005000079