Quench characteristics in HTSC devices

T. Kiss; M. Inoue; K. Hasegawa; K. Ogata; V. S. Vysotsky; Yu Ilyin; M. Takeo; H. Okamoto; F. Irie

doi:10.1109/77.783483

Quench characteristics in HTSC devices

T. Kiss, M. Inoue, K. Hasegawa, K. Ogata, V. S. Vysotsky, Yu Ilyin, M. Takeo, H. Okamoto, F. Irie

Section of Measurement and Control Engineering

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

21 Citations (Scopus)

Abstract

Quench dynamics in a YBCO HTSC film and a Bi-based small HTSC coil have been studied. While the stability margin of HTSC against a local disturbance was very large, quench current was limited by a catastrophic temperature rise originated from the nonlinear characteristic of Joule heating in HTSC. The crucial parameter for the quench becomes the nonlinear resistance in HTSC as a function of temperature and transport current It has been shown that the dynamic characteristics of the quench in both the film and the coil can be described quantitatively by the simplified one-dimensional heat balance equation even though the time scales are different by more that six orders, i.e., several hundreds micro seconds for the film and several hundreds seconds for the tape coil.

Original language	English
Pages (from-to)	1073-1076
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	9
Issue number	2 PART 1
DOIs	https://doi.org/10.1109/77.783483
Publication status	Published - 1999

All Science Journal Classification (ASJC) codes

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

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title = "Quench characteristics in HTSC devices",

abstract = "Quench dynamics in a YBCO HTSC film and a Bi-based small HTSC coil have been studied. While the stability margin of HTSC against a local disturbance was very large, quench current was limited by a catastrophic temperature rise originated from the nonlinear characteristic of Joule heating in HTSC. The crucial parameter for the quench becomes the nonlinear resistance in HTSC as a function of temperature and transport current It has been shown that the dynamic characteristics of the quench in both the film and the coil can be described quantitatively by the simplified one-dimensional heat balance equation even though the time scales are different by more that six orders, i.e., several hundreds micro seconds for the film and several hundreds seconds for the tape coil.",

author = "T. Kiss and M. Inoue and K. Hasegawa and K. Ogata and Vysotsky, {V. S.} and Yu Ilyin and M. Takeo and H. Okamoto and F. Irie",

note = "Funding Information: Manuscript received September 15, 1998. T. Kiss, tel+81-92-642-3910, fax +81-92-642-3963. kiss@sc.kyushu-tJ.ac.jp This work was partly supported by the National Institute for Fusion Science (NIFS),J apan.",

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T1 - Quench characteristics in HTSC devices

AU - Kiss, T.

AU - Inoue, M.

AU - Hasegawa, K.

AU - Ogata, K.

AU - Vysotsky, V. S.

AU - Ilyin, Yu

AU - Takeo, M.

AU - Okamoto, H.

AU - Irie, F.

N1 - Funding Information: Manuscript received September 15, 1998. T. Kiss, tel+81-92-642-3910, fax +81-92-642-3963. kiss@sc.kyushu-tJ.ac.jp This work was partly supported by the National Institute for Fusion Science (NIFS),J apan.

PY - 1999

Y1 - 1999

N2 - Quench dynamics in a YBCO HTSC film and a Bi-based small HTSC coil have been studied. While the stability margin of HTSC against a local disturbance was very large, quench current was limited by a catastrophic temperature rise originated from the nonlinear characteristic of Joule heating in HTSC. The crucial parameter for the quench becomes the nonlinear resistance in HTSC as a function of temperature and transport current It has been shown that the dynamic characteristics of the quench in both the film and the coil can be described quantitatively by the simplified one-dimensional heat balance equation even though the time scales are different by more that six orders, i.e., several hundreds micro seconds for the film and several hundreds seconds for the tape coil.

AB - Quench dynamics in a YBCO HTSC film and a Bi-based small HTSC coil have been studied. While the stability margin of HTSC against a local disturbance was very large, quench current was limited by a catastrophic temperature rise originated from the nonlinear characteristic of Joule heating in HTSC. The crucial parameter for the quench becomes the nonlinear resistance in HTSC as a function of temperature and transport current It has been shown that the dynamic characteristics of the quench in both the film and the coil can be described quantitatively by the simplified one-dimensional heat balance equation even though the time scales are different by more that six orders, i.e., several hundreds micro seconds for the film and several hundreds seconds for the tape coil.

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Quench characteristics in HTSC devices

Abstract

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