Fault Current Limiter
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Novel Design of a Hybrid Superconducting Fault Current Limiter with Controlled Solid-State Device
Abstract Fault current limiters are essential devices used to protect the power system and its equipment against high levels of fault current, which are growing up due to the increase of new power sources. This paper proposes a novel design of a Hybrid Superconducting Fault Current Limiter (Hybrid SFCL), which is composed basically by thyristors in series wi
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-06
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2. Short Circuit and Recovery Time Tests in a helical bifilar R-SFCL module
Abstract Superconducting Fault Current Limiter (SFCL) modules with distinct arrangements have been investigated, seeking design and performance enhancements. In this context, this work aims to propose a design for resistive SFCL (R-SFCL) modules, using RE-Ba-Cu-O high-temperature superconducting tapes (HTS) wound on an alternative support material. An R-SFCL
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-06
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3. 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 current limiter based on Hg0.82Re0.18Ba2Ca2Cu3O8+d samples and
Mat. Res.. Publicado em: 03/06/2014
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4. Design and test of HTS coils for resistive fault current limiter
This paper presents the design, manufacturing and test results of HTS coils for single-phase resistive current limiters using two different Bi-2223/Ag tapes. Two coils were separately wound on cylindrical G-10 tubes with helical path. One of the coil was wound in a bifilar conductor arrangement aiming at reducing the self-inductance. The maximum flux density
Publicado em: 2011
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5. Limitador de corrente eletrica monofasico resistivo supercondutor de alta temperatura critica / Single phase resistive high critical temperature superconducting fault current limiter
O crescimento da demanda de energia elétrica nos centros urbanos e industriais tem levado à necessidade de expansão dos sistemas de energia elétrica o que tem causado aumento nos níveis de curto-circuito, atingindo o limite da capacidade dos sistemas de proteção existentes exigindo sua substituição por outros de maior capacidade. Nessa situação ne
Publicado em: 2008
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6. LIMITADOR ELETRÔNICO DE CORRENTE DE CURTO-CIRCUITO BASEADO EM CIRCUITO RESSONANTE CONTROLADO POR DISPOSITIVOS SEMICONDUTORES DE POTÊNCIA / ELECTRONIC FAULT CURRENT LIMITER BASED ON RESONANT CIRCUIT CONTROLLED BY POWER SEMICONDUCTOR DEVICES
Esta dissertação apresenta estudos sobre um limitador eletrônico de corrente de curto-circuito (FCL - Fault Current Limiter) ressonante controlado por dispositivos semicondutores de potência. Inicialmente são discutidas a operação de duas topologias de circuitos ressonantes ideais como limitadores de corrente de curto-circuito. A análise desses circu
Publicado em: 2006
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7. Processing of bulk Bi-2223 high-temperature superconductor
The Bi2Sr2Ca2Cu3 O10+x (Bi-2223) is one of the main high temperature superconductors for applications. One of these applications is the Superconductor Fault Current Limiter (SCFCL), which is a very promising high temperature superconducting device. SCFCL's can be improved by using bulk superconductors with high critical currents, which requires a sufficientl
Materials Research. Publicado em: 2005-12
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8. ESTUDO DA FUSÃO E SOLIDIFICAÇÃO DA FASE BI-2212 E SEUS MECANISMOS DE SUPERCONDUÇÃO / STUDY OF BI-2212 PHASE MELTING AND SOLIDIFICATION AND ITS SUPERCONDUCTING MECHANISMS
High temperature superconductivity was discovered in 1986. Since then more than 150 new superconductors (cuprates, bismuthates, borides and fullerite) with critical temperature higher then 23,3K (the highest critical temperature for low temperature superconductors) have been synthesized. Many of them rise interest from the scientific viewpoint and are suitab
Publicado em: 2003
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9. Development of Bulk Bi2+xSr3-yCa yCu 2O8+delta Superconductors by Partial-Melting Route for Fault Current Limiters Application
The production of bulk Bi2+xSr3-yCa yCu 2O8+delta (Bi-2212) superconductors for fault current limiter application was developed via a partial-melting route. Aiming high Ic (critical current), which is the essential superconducting characteristic for application of this material in the construction of Fault Current Limiters (FCL), the produced blocks have pre
Materials Research. Publicado em: 2002-06