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AC losses in multifilamentary HTS-composite tapes based on BiPbSrCaCuO by A.D. Nikulin; A.K. Shikov; I.I. Akimov; A.E. Khodot; I.A. Rudnev; A.V. Eremin; A.L. Ershov is a Physics and Astronomy article available to read on EtoBox.
What is AC losses in multifilamentary HTS-composite tapes based on BiPbSrCaCuO about?
Some results of AC loss measurements are presented for 19, 61, 127-filamentary Bi-2223rAg tapes prepared by the 'powder-in-tube' method. All measurements have been made at T s 77 K under sinusoidal transport current with frequency in the range of 30-600 Hz and the current amplitude up to 30 A. The measurements have been carried out both in self field conditions and at the external magnetic field applied to the tape at the different angles. The dependencies of the AC losses on current amplitude and frequency have been obtained. It is found that for all tapes the current amplitude dependencies of the AC losses show good agreement with the Norris prediction for an elliptical or strip geometry. The AC loss dependencies on frequency were linear. The measurements of AC losses in external magnetic field show that the change of AC losses is only through the change of the critical current. So the transport AC losses in the tapes are the 'saturation losses' that is they are different from classic hysteresis losses.
Who reads AC losses in multifilamentary HTS-composite tapes based on BiPbSrCaCuO?
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- Author
- A.D. Nikulin; A.K. Shikov; I.I. Akimov; A.E. Khodot; I.A. Rudnev; A.V. Eremin; A.L. Ershov
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0921-4534)
- Published
- 1998
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)