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AC loss characteristics of coated conductor and the perspective for its AC loss reduction
Physica C: Superconductivity and its Applications, 2005The AC loss characteristics of a coated conductor are determined by the combination of its electromagnetic properties, its geometrical structure, the external magnetic field to which it is exposed, and its transport current. Magnetic fields in a solenoid coil and a one-layer cable are shown as examples of the external magnetic field to which a coated ...
N. Amemiya +5 more
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AC losses in superconducting solenoids
IEEE Transactions on Appiled Superconductivity, 2002This paper presents an analytical model to determine AC losses in monolayer and multilayer superconducting solenoids. The case of a transformer with several coils is also presented. This model is based on an infinite cylindrical geometry and the Bean model.
E. Vinot +3 more
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AC losses in superconducting solenoids
IEEE Transactions on Magnetics, 1978Losses were measured in a variety of different solenoids made from various types of superconductors. Both single filament and multifilament, twisted and untwisted, conductors were used. The results were compared with calculated losses for these cases.
W. Carr, B. Clawson, W. Vogen
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Cryogenics, 1975
Abstract 60 Hz losses, measured at 4.2 K, are reported for a number of V3Ga tapes reacted between 625°C and 775°C for various lengths of time. The losses are shown to depend mainly on the bulk critical current density Jc, except at low fields (≲ 500 Oe) where surface currents, and hence surface roughness, play a dominant role.
O. Horigami, J.F. Bussiere, Y. Tanaka
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Abstract 60 Hz losses, measured at 4.2 K, are reported for a number of V3Ga tapes reacted between 625°C and 775°C for various lengths of time. The losses are shown to depend mainly on the bulk critical current density Jc, except at low fields (≲ 500 Oe) where surface currents, and hence surface roughness, play a dominant role.
O. Horigami, J.F. Bussiere, Y. Tanaka
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AC losses of transposed superconductors
IEEE Transactions on Magnetics, 1975Eastham and Rhodes published results of loss measurements on transposed superconducting NbTi cables and concluded basing on an extrapolation to very large numbers of wires that transposed superconductors could be used favourably in cables for power transmission. There are some reasons to question the correctness of their extrapolation.
D. Eckert, G. Enderlein, F. Lange
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Journal of Applied Physics, 1968
Since the discovery of technologically interesting high-field superconductors in 1961 more than 50 experimental and theoretical publications have appeared which are concerned with the relevant ac loss mechanisms. These papers are reviewed, and certain of the experimental findings are unified in the light of the present day understanding.
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Since the discovery of technologically interesting high-field superconductors in 1961 more than 50 experimental and theoretical publications have appeared which are concerned with the relevant ac loss mechanisms. These papers are reviewed, and certain of the experimental findings are unified in the light of the present day understanding.
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AC losses in coated conductors
Superconductor Science and Technology, 2010Future use of coated conductors in electric power applications like transmission cables, transformers or fault current limiters is sensitive to the amount of dissipation in the AC regime. This paper analyses factors controlling AC loss of coated conductors in typical configurations: the self-field case when transport current generates the magnetic ...
F Gömöry +4 more
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AC losses in high-temperature superconductors: revisiting the fundamentals of the loss modelling
Physica C: Superconductivity, 1998The fundamentals of the electromagnetic modelling of high-temperature superconductors are discussed. Special attention is paid to intrinsic features of high-temperature superconductors different to those of low-temperature superconductors. Examples of those features are strong thermal fluctuations, which results in enhanced flux creep and slanted E(J ...
Paasi, Jaakko, Lahtinen, Markku
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