Analysis on fault current limiting and recovery characteristics of a flux-lock type SFCL with an isolated transformer
- Authors
- Ko, Seckcheol; Lim, Sung-Hun; Han, Tae-Hee
- Issue Date
- Jan-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- The flux-lock type superconducting fault current limiter (SFCL); Fault current limiting and recovery operation
- Citation
- PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, v.484, pp.263 - 266
- Journal Title
- PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
- Volume
- 484
- Start Page
- 263
- End Page
- 266
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/11395
- DOI
- 10.1016/j.physc.2012.03.041
- ISSN
- 0921-4534
- Abstract
- The flux-lock type superconducting fault current limiter (SFCL) can quickly limit the fault current shortly after the short circuit occurs and recover the superconducting state after the fault removes. However, the superconducting element comprising the flux-lock type SFCL can be destructed when the high fault current passes through the SFCL. Therefore, the countermeasure to control the fault current and protect the superconducting element is required. In this paper, the flux-lock type SFCL with an isolated transformer, which consists of two parallel connected coils on an iron core and the isolated transformer connected in series with one of two coils, was proposed and the short-circuit experimental device to analyze the fault current limiting and the recovery characteristics of the flux-lock type SFCL with the isolated transformer were constructed. Through the short-circuit tests, the flux-lock type SFCL with the isolated transformer was confirmed to perform more effective fault current limiting and recovery operation compared to the flux-lock type SFCL without the isolated transformer from the viewpoint of the quench occurrence and the recovery time of the SFCL. (C) 2012 Elsevier B.V. All rights reserved.
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