AC magnetic losses in Bi-2223/Ag tapes with different aspect ratios
β Scribed by J. Fang; X.M. Luo; D.X. Chen; E.W. Collings; E. Lee; M.D. Sumption; A.K.M. Alamgir; H.P. Yi; J.G. Fang; C. Gu; S.Q. Guo; M.L. Liu; Y. Xin; Z. Han
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 272 KB
- Volume
- 412-414
- Category
- Article
- ISSN
- 0921-4534
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Electrical power devices, e.g. motors, power transmission cables, transformers, etc. are the most promising, and nowadays the most technologically advanced, applications of high temperature superconductors (HTS). Multifilamentary HTS tapes (usually Bi-2223/Ag composites) are used in forms of various
Ac-loss and time constant measurements were performed with Bi-2223 tape conductors in Ag matrix at 4.2 K and at 77 K. The frequency dependence of the loss curve shows the expected maximum at xs ΒΌ 1. In some cases the loss curve goes through a minimum in the higher frequency range and then increases