A study on the basic characteristics of persistent current mode operation for small scale high temperature superconducting coil with no-insulation winding method

T. S. Lee, W. S. Lee, S. Choi, H. C. Jo, H. J. Kim, J. Lee, J. S. Kang, O. J. Kwon, Haigun Lee, T. K. Ko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This paper aims to evaluate the feasibility of using no-insulation High Temperature Superconducting (HTS) coil in persistent current mode system. A HTS coil in persistent current mode system usually includes one or more non-superconducting joints in its circuit. And the current decaying rate of the coil is affected by the resistance of joint in persistent current circuit. If the resistance of joint is large, decaying rate of the current drastically increases. Therefore, reducing the joint resistance of the HTS coil is very important in persistent current mode system. In this paper, the no-insulation HTS coil is suggested as a way to reduce the joint resistance with the embedded parallel contact resistance naturally made by no-insulation winding method. Two small coils are fabricated with insulation and no-insulation winding method, and persistent current mode system experiment of each coil is preformed and analyzed.

Original languageEnglish
Pages (from-to)23-27
Number of pages5
JournalJournal of the Korea Institute of Applied Superconductivity and Cryogenics
Volume14
Issue number3
Publication statusPublished - 2012

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Insulation
Temperature
Networks (circuits)
Contact resistance
Superconducting coils
Experiments

Keywords

  • Contact resistance
  • No-insulation
  • Persistent current mode
  • Superconductor coil

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

A study on the basic characteristics of persistent current mode operation for small scale high temperature superconducting coil with no-insulation winding method. / Lee, T. S.; Lee, W. S.; Choi, S.; Jo, H. C.; Kim, H. J.; Lee, J.; Kang, J. S.; Kwon, O. J.; Lee, Haigun; Ko, T. K.

In: Journal of the Korea Institute of Applied Superconductivity and Cryogenics, Vol. 14, No. 3, 2012, p. 23-27.

Research output: Contribution to journalArticle

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abstract = "This paper aims to evaluate the feasibility of using no-insulation High Temperature Superconducting (HTS) coil in persistent current mode system. A HTS coil in persistent current mode system usually includes one or more non-superconducting joints in its circuit. And the current decaying rate of the coil is affected by the resistance of joint in persistent current circuit. If the resistance of joint is large, decaying rate of the current drastically increases. Therefore, reducing the joint resistance of the HTS coil is very important in persistent current mode system. In this paper, the no-insulation HTS coil is suggested as a way to reduce the joint resistance with the embedded parallel contact resistance naturally made by no-insulation winding method. Two small coils are fabricated with insulation and no-insulation winding method, and persistent current mode system experiment of each coil is preformed and analyzed.",
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AU - Lee, T. S.

AU - Lee, W. S.

AU - Choi, S.

AU - Jo, H. C.

AU - Kim, H. J.

AU - Lee, J.

AU - Kang, J. S.

AU - Kwon, O. J.

AU - Lee, Haigun

AU - Ko, T. K.

PY - 2012

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N2 - This paper aims to evaluate the feasibility of using no-insulation High Temperature Superconducting (HTS) coil in persistent current mode system. A HTS coil in persistent current mode system usually includes one or more non-superconducting joints in its circuit. And the current decaying rate of the coil is affected by the resistance of joint in persistent current circuit. If the resistance of joint is large, decaying rate of the current drastically increases. Therefore, reducing the joint resistance of the HTS coil is very important in persistent current mode system. In this paper, the no-insulation HTS coil is suggested as a way to reduce the joint resistance with the embedded parallel contact resistance naturally made by no-insulation winding method. Two small coils are fabricated with insulation and no-insulation winding method, and persistent current mode system experiment of each coil is preformed and analyzed.

AB - This paper aims to evaluate the feasibility of using no-insulation High Temperature Superconducting (HTS) coil in persistent current mode system. A HTS coil in persistent current mode system usually includes one or more non-superconducting joints in its circuit. And the current decaying rate of the coil is affected by the resistance of joint in persistent current circuit. If the resistance of joint is large, decaying rate of the current drastically increases. Therefore, reducing the joint resistance of the HTS coil is very important in persistent current mode system. In this paper, the no-insulation HTS coil is suggested as a way to reduce the joint resistance with the embedded parallel contact resistance naturally made by no-insulation winding method. Two small coils are fabricated with insulation and no-insulation winding method, and persistent current mode system experiment of each coil is preformed and analyzed.

KW - Contact resistance

KW - No-insulation

KW - Persistent current mode

KW - Superconductor coil

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