Direct current voltage increment due to ac coupling in a high Tc superconducting coil

N. Shaked, I. A. Al-Omari, A. Friedman, Y. Wolfus, M. Sinvani, A. Shaulov, Y. Yeshurun

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Abstract

The voltage-current characteristics of a superconducting coil, made of multifilamentary silver-sheathed Bi2Sr2Ca2Cu3O10+δ tape, are investigated. We find that a small ac current Iac superimposed on a relatively large dc current Idc causes a significant increase in the coil dc voltage, approximately proportional to Idc, Iac 2, and the ac frequency. We attribute this effect to the nonlinear magnetoresistance of the coil, and discuss its significance in power applications of high Tc superconducting coils, such as fault current limiters and superconducting magnetic energy storage devices.

Original languageEnglish
Pages (from-to)3932-3934
Number of pages3
JournalApplied Physics Letters
Volume73
Issue number26
DOIs
Publication statusPublished - 1998

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Shaked, N., Al-Omari, I. A., Friedman, A., Wolfus, Y., Sinvani, M., Shaulov, A., & Yeshurun, Y. (1998). Direct current voltage increment due to ac coupling in a high Tc superconducting coil. Applied Physics Letters, 73(26), 3932-3934. https://doi.org/10.1063/1.122940