Quench initiation and propagation in GdBCO racetrack pancake coil for large-scale rotating machines

D. G. Yang; J. B. Song; K. L. Kim; H. G. Lee; M. W. Park; H. G. Lee

doi:10.1007/s10948-011-1362-7

Quench initiation and propagation in GdBCO racetrack pancake coil for large-scale rotating machines

D. G. Yang, J. B. Song, K. L. Kim, H. G. Lee, M. W. Park, H. G. Lee

Department of Materials Science and Engineering

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

20 Citations (Scopus)

Abstract

Quench tests of a GdBCO racetrack pancake coil were conducted in liquid nitrogen at 77 K. Minimum quench energy and two-dimensional normal zone propagation velocities of the coil are discussed. Longitudinal normal zone propagation velocities in the curved section were almost twice those in the straight portion due to stress effects, showing that protection of the straight portion is of greater importance than protection of the curved portion when using racetrack-type, GdBCO pancake coils in large-scale rotating machines.

Original language	English
Pages (from-to)	1071-1076
Number of pages	6
Journal	Journal of Superconductivity and Novel Magnetism
Volume	25
Issue number	4
DOIs	https://doi.org/10.1007/s10948-011-1362-7
Publication status	Published - 2012 May

Keywords

GdBCO
Minimum quench energy
Normal zone propagation
Racetrack pancake coil

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1007/s10948-011-1362-7

Cite this

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title = "Quench initiation and propagation in GdBCO racetrack pancake coil for large-scale rotating machines",

abstract = "Quench tests of a GdBCO racetrack pancake coil were conducted in liquid nitrogen at 77 K. Minimum quench energy and two-dimensional normal zone propagation velocities of the coil are discussed. Longitudinal normal zone propagation velocities in the curved section were almost twice those in the straight portion due to stress effects, showing that protection of the straight portion is of greater importance than protection of the curved portion when using racetrack-type, GdBCO pancake coils in large-scale rotating machines.",

keywords = "GdBCO, Minimum quench energy, Normal zone propagation, Racetrack pancake coil",

author = "Yang, {D. G.} and Song, {J. B.} and Kim, {K. L.} and Lee, {H. G.} and Park, {M. W.} and Lee, {H. G.}",

note = "Funding Information: Acknowledgements This study was supported by the Mid-Career Researcher Program through an NRF grant funded by the MEST (2009-0085369) and in part by a Korea University Grant.",

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doi = "10.1007/s10948-011-1362-7",

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T1 - Quench initiation and propagation in GdBCO racetrack pancake coil for large-scale rotating machines

AU - Yang, D. G.

AU - Song, J. B.

AU - Kim, K. L.

AU - Lee, H. G.

AU - Park, M. W.

AU - Lee, H. G.

N1 - Funding Information: Acknowledgements This study was supported by the Mid-Career Researcher Program through an NRF grant funded by the MEST (2009-0085369) and in part by a Korea University Grant.

PY - 2012/5

Y1 - 2012/5

N2 - Quench tests of a GdBCO racetrack pancake coil were conducted in liquid nitrogen at 77 K. Minimum quench energy and two-dimensional normal zone propagation velocities of the coil are discussed. Longitudinal normal zone propagation velocities in the curved section were almost twice those in the straight portion due to stress effects, showing that protection of the straight portion is of greater importance than protection of the curved portion when using racetrack-type, GdBCO pancake coils in large-scale rotating machines.

AB - Quench tests of a GdBCO racetrack pancake coil were conducted in liquid nitrogen at 77 K. Minimum quench energy and two-dimensional normal zone propagation velocities of the coil are discussed. Longitudinal normal zone propagation velocities in the curved section were almost twice those in the straight portion due to stress effects, showing that protection of the straight portion is of greater importance than protection of the curved portion when using racetrack-type, GdBCO pancake coils in large-scale rotating machines.

KW - GdBCO

KW - Minimum quench energy

KW - Normal zone propagation

KW - Racetrack pancake coil

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Quench initiation and propagation in GdBCO racetrack pancake coil for large-scale rotating machines

Abstract

Keywords

ASJC Scopus subject areas

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