Improvement of Current Limiting and Recovery Characteristics of Flux-Lock Type SFCL with Series Connection of Two Coils Using Its Third Coil
- Authors
- Ko, Seok-Cheol; Kim, Young-Pil; Lim, Sung-Hun
- Issue Date
- Jan-2017
- Publisher
- KOREAN INST ELECTR ENG
- Keywords
- Superconducting fault current limiter (SFCL); Fault current limiting; HTSC element; Recovery characteristics
- Citation
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v.12, no.1, pp.472 - 477
- Journal Title
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
- Volume
- 12
- Number
- 1
- Start Page
- 472
- End Page
- 477
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/6486
- DOI
- 10.5370/JEET.2017.12.1.472
- ISSN
- 1975-0102
- Abstract
- In this work, the current limiting and recovery characteristics of a flux-lock type superconducting fault current limiter (SFCL) with series connection of two coils were effectively improved by adding a third winding into the conventional flux-lock type SFCL with series connection of two coils. To confirm the contribution of the third winding to the current limiting and recovery characteristics of this type of the SFCL, short-circuit testing was carried out with consideration of the third winding, and the effect of the third winding on the current limiting and recovery characteristics was examined by comparative analysis of the amplitude of the limited fault current and the power burden of the high-TC superconducting (HTSC) element comprising the SFCL. Through the analysis of both the limiting impedance and the operational current as the main design parameter of the SFCL, the improved current limiting and recovery characteristics of the flux-lock type SFCL using the third winding could be verified.
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