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, H. G. Lee, T. K. Ko

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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
Issue number3
Publication statusPublished - 2012 Jan 1


All Science Journal Classification (ASJC) codes

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

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