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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 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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Losses in AC Superconducting Coils
1989AC superconducting wires are being developed so as to be applied to electrical machineries. The main concerns in developing the AC superconducting wires are AC losses. In order to assess AC losses in the form of winding, we made two AC superconducting coils having different rated capacities, 500kVA and 20kVA.
H. Kasahara +3 more
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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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1994
The main issues in the research on ac losses in practical superconductors and the developments of the last decade are reviewed. Moreover the impact of the knowledge on the development of superconducting magnet systems as for tokamaks and particle accelerators is discussed.
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The main issues in the research on ac losses in practical superconductors and the developments of the last decade are reviewed. Moreover the impact of the knowledge on the development of superconducting magnet systems as for tokamaks and particle accelerators is discussed.
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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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Measurement of AC insulation losses at cryogenic temperatures
1976 IEEE International Conference on Electrical Insulation, 1976The design of superconducting transmission cables requires a systems approach which includes consideration of the conductor, insulator, cryogenic envelope and refrigerator. Each component of the system must function satisfactorily without disrupting the other system elements.
William E. Anderson, Richard S. Davis
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AC losses in reversible niobium
Cryogenics, 1972Abstract Losses at 4.2 K in a cylinder of magnetic reversible niobium subjected to a sinusoidal magnetic field within a frequency range of 20–260 c s −1 are reported as well as waveforms related to the penetration of magnetic flux. The observed phenomena are interpreted by considering both the shielding of the bulk by currents at the surface and the
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An Analysis of AC loss of Bi-2212 CICC
2018 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD), 2018With the development of magnetic confinement fusion research, more and more stronger magnetic fields are needed. Commonly used superconductor of Nb3Sn in high-field magnets which does not have much potential for improvement. We need to develop conductor with new superconducting materials. Bi2Sr2CaCu2Ox is such a promising material.
Yuxiang He +3 more
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