Determination of maximum permissible temperature rise considering repetitive over-current characteristics of YBCO coated conductors

Min Jae Kim; Min Cheol Ahn; Seong Eun Yang; Dong Keun Park; Young Jae Kim; Tae Kuk Ko; Chanjoo Lee; Bok Yeol Seok

doi:10.1109/TASC.2008.921397

Determination of maximum permissible temperature rise considering repetitive over-current characteristics of YBCO coated conductors

Min Jae Kim, Min Cheol Ahn, Seong Eun Yang, Dong Keun Park, Young Jae Kim, Tae Kuk Ko, Chanjoo Lee, Bok Yeol Seok

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

Here we suggest stable maximum temperature criteria of YBCO coated conductors (CCs) considering degradation of YBCO by repetitive exposure to excessive temperature rise. Stable maximum permissible temperature was experimentally determined as the maximum temperature at which CC does not suffer from critical current (Ic) degradation or burnout. By comparing various over-current characteristics with short-circuit characteristics in regards to the pattern of generated resistance and joule heating flux, maximum permissible temperature rise of YBCO CC in superconducting fault current limiter (SFCL) can be determined as 400 K. Our research is expected to provide rudimental basis for the temperature design of various superconducting power applications including SFCL.

Original language	English
Article number	4497939
Pages (from-to)	660-663
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	18
Issue number	2
DOIs	https://doi.org/10.1109/TASC.2008.921397
Publication status	Published - 2008 Jun

Bibliographical note

Funding Information:
Manuscript received August 29, 2007. This research was supported by the Ministry of Science and Technology, Republic of Korea under the Center for Applied Superconductivity Technology of the 21st century Frontier R&D Program.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2008.921397

Cite this

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abstract = "Here we suggest stable maximum temperature criteria of YBCO coated conductors (CCs) considering degradation of YBCO by repetitive exposure to excessive temperature rise. Stable maximum permissible temperature was experimentally determined as the maximum temperature at which CC does not suffer from critical current (Ic) degradation or burnout. By comparing various over-current characteristics with short-circuit characteristics in regards to the pattern of generated resistance and joule heating flux, maximum permissible temperature rise of YBCO CC in superconducting fault current limiter (SFCL) can be determined as 400 K. Our research is expected to provide rudimental basis for the temperature design of various superconducting power applications including SFCL.",

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AU - Kim, Young Jae

AU - Ko, Tae Kuk

AU - Lee, Chanjoo

AU - Seok, Bok Yeol

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Determination of maximum permissible temperature rise considering repetitive over-current characteristics of YBCO coated conductors

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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