Effect of interturn spacing on AC loss of single layer Bi-2223/Ag coils

Milan Polak, Lubomil Jansak, Jozef Kvitkovic, Pavol Usak, Jaakko Paasi, Jorma Lehtonen, Manfred Daumling, Andrea Kasztler, Hans Kirchmayr

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

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Abstract

We studied effects of interturn spacing on AC losses and DC critical currents of single layer R&W coils wound from multifilamentary, untwisted Bi-2223/Ag tape. The losses at currents below the critical current increased proportional to i = (I0/Ic)n, where n values were 3.6, 3.3, and 3 for coils with interturn gap 4 mm, 1 mm and 0.1 mm, respectively. At currents below Ic AC losses increased with decreasing interturn gap. We suppose that the observed loss increase is caused by the increase of magnetization losses, while self-field losses remain practically unchanged.

Original languageEnglish
Pages (from-to)673-676
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume10
Issue number1
DOIs
Publication statusPublished - 1 Jan 2000
MoE publication typeA4 Article in a conference publication
EventThe 16th International Conference on Magnet Tehnolopgy - Tallahassee, FL, USA
Duration: 26 Sep 19992 Oct 1999

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    Polak, M., Jansak, L., Kvitkovic, J., Usak, P., Paasi, J., Lehtonen, J., Daumling, M., Kasztler, A., & Kirchmayr, H. (2000). Effect of interturn spacing on AC loss of single layer Bi-2223/Ag coils. IEEE Transactions on Applied Superconductivity, 10(1), 673-676. https://doi.org/10.1109/77.828323