Temperature dependence of AC losses in a BSCCO/Ag tape exposed to AC magnetic fields applied in different orientations
2002 (English)In: Physica. C, Superconductivity, ISSN 0921-4534, Vol. 372, 1818-1822 p.Article in journal (Refereed) Published
When high-temperature superconducting tapes are used in electrotechnical applications, they have an optimal working point in temperature. In the winding of e.g. a transformer the conductor carrying an AC current is exposed to an AC magnetic field oriented differently in separate parts of the winding. To determine the optimal working temperature it is essential to study the temperature dependence of the AC losses under these conditions. In this study, we present experimental results of the losses in a multi-filamentary silver-sheathed Bi-2223 high-temperature superconducting tape carrying an AC transport current in an AC magnetic field applied in different orientations perpendicular to the current path. The losses were measured calorimetrically in the temperature interval 40-85 K. The experimental results are compared to semi-empirical models of the AC losses.
Place, publisher, year, edition, pages
2002. Vol. 372, 1818-1822 p.
high-temperature superconductor, AC losses, field orientations, temperature dependence
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-5347DOI: 10.1016/S0921-4534(02)01134-6ISI: 000178019100123OAI: oai:DiVA.org:kth-5347DiVA: diva2:9309
5th European Conference on Applied Superconductivity (EUCAS 2001) Location: TECH UNIV DENMARK, LYNGBY, DENMARK Date: AUG 26-30, 2001 2004-10-102004-10-102011-08-29Bibliographically approved