Superconducting cable

Details Superconducting cable Superconducting cable

2006-08-15

2006-08-15

Patel, Ishwar (I. B.) (Department: 2841)

Electricity: conductors and insulators

Conduits, cables or conductors

Superconductors

C029S599000, C505S232000

Reexamination Certificate

active

07091423

ABSTRACT:
A superconducting cable has a plurality of superconducting wires wound around a core material (former) in a multilayered manner. The superconducting wires employ a twisted filament type superconducting wire having spiral superconducting filaments and an untwisted filament type superconducting wire having straight superconducting filaments. The layer in which an applied magnetic field is large and of which the low loss effect is expected is formed of twisted filament type superconducting wires, and the other layers are formed using the untwisted filament type superconducting wires; thus the AC loss can be reduced effectively. Thus, in the superconducting cable, the AC loss can be effectively reduced while a degradation of the current characteristics and the increase of cost are suppressed.

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S. Mukoyama et al., “AC Losses of a Multi-layer Conductor Using Bi2223 Tapes with Twisted Filaments,” Advances in Super Conductivity—Proceedings of the 12thInternational Symposium on Superconductivity, 1999, pp. 754-756.

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