Alternating field losses in superconducting wires carrying dc transport currents: Part 1 single core conductors
1979; Elsevier BV; Volume: 19; Issue: 12 Linguagem: Inglês
10.1016/0011-2275(79)90192-9
ISSN1879-2235
AutoresTakeshi Ogasawara, Yuki Takahashi, K. Kanbara, Y. Kubota, K. Yasohama, K. Yasuköchi,
Tópico(s)HVDC Systems and Fault Protection
ResumoThe influence of dc transport currents on alternating-field hysteresis loss was investigated for a single core superconducting wire. The configuration of the sample coil simulates a tight solenoidal winding of superconducting magnets, and the field is a small transverse alternating field applied on top of a large dc bias. The losses were determined as a function of transport current and external field from simultaneous measurements of the magnetization and the dynamic resistance. The results were compared with calculations based on a slab model. When the parameter of the slab-equivalent of an array of superconducting wires is chosen properly, the calculations explain the observed results quite well.
Referência(s)