The coupling losses are calculated for round and flat cables whose cores consist of two layers (an inner insulating layer for flat cables and a thin outer shell for round cables, which is a substitute for the solder connecting the superconducting strands to the core). The previously developed method
Losses in superconducting cables in pulsed magnetic fields
β Scribed by F Chovanec; V.M Drobin; E.I Dyachkov; L Jansak; I.S Khukhareva; Yu.V Kulikov; V.G Luppov; V.A Malyuk; A.A Smirnov
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 314 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0011-2275
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β¦ Synopsis
Measurements have been carried out of superconducting cables of different types in pulsed magnetic fields. Three types of samples have been made from multifilamentary Nbo. 5 -Tio. 5 superconductors: one, a cluster of isolated wires; two, a double-layer twisted flat cable," and three, one-layer twisted tube samples. Dependences have been studied of ac losses on the amplitude, direction and change velocity of the magnetic field as well as on the diameter of filaments and twist pitch. It is shown that the ac losses in unsoldered samples are close to those in the cluster of isolated wires.
π SIMILAR VOLUMES
As the critical current of a single a.c. superconducting wire cannot be more than several tens of amperes, such single wires (strands) are bundled and twisted to make cables with a large current capacity. As the result of the twisting and bundling, a longitudinal magnetic field parallel to a strand
Superconducting magnets operating in a pulsed field mode are exposed to magnetomechanical, thermomechanical and purely mechanical stresses. Since most materials incorporated in the magnet, such as the composite conductor, the insulation, the impregnants and the reinforcements, are strained to the li
The magnetic field dependence of ac losses due to nonlinear flux penetration into superconducting filaments, ie, nonlinearity between an applied magnetic field and a penetrated flux, has been studied experimentally for multi-filamentary superconducting wires with Nb-Ti filaments and Cu matrix. In or