Transient Fault Current Limiting Characteristics of a Transformer Type SFCL Using an Additional Magnetically Coupled Circuit
- Authors
- Lim, Seung-Taek; Lim, Sung-Hun
- Issue Date
- Feb-2017
- Publisher
- KOREAN INST ELECTRICAL & ELECTRONIC MATERIAL ENGINEERS
- Keywords
- Transformer type SFCL (superconducting fault current limiter); Additional magnetically coupled circuit; Transient fault current limiting characteristics; Winding direction; Quench sequence
- Citation
- TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS, v.18, no.1, pp.42 - 45
- Journal Title
- TRANSACTIONS ON ELECTRICAL AND ELECTRONIC MATERIALS
- Volume
- 18
- Number
- 1
- Start Page
- 42
- End Page
- 45
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/6464
- DOI
- 10.4313/TEEM.2017.18.1.42
- ISSN
- 1229-7607
- Abstract
- In this paper, a transformer type SFCL (superconducting fault current limiter) using an additional magnetically coupled circuit was suggested. Its transient fault current limiting characteristics, due to the winding direction of additional coupled circuit, were analyzed through fault current limiting tests. The suggested transformer type SFCL was composed of the primary winding, and one secondary winding wound on the same iron core together with an additional magnetically coupled circuit. That circuit consists of the other secondary winding together with the other SC (superconducting) element connected in parallel with its other secondary winding. As one of the effective design parameters to affect the transient fault current of the SFCL, the fault current limiting tests of the suggested SFCL were carried out considering the winding direction of its additional coupled circuit. It was confirmed that, through the analysis on the fault current tests of the SFCL, the quench sequence of two SC elements comprising the suggested SFCL could be adjusted by the winding direction of the additional coupled circuit.
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