Increase of coupling-current losses in superconducting cables due to first-stage cabling

✍ Scribed by F. Sumiyoshi; H. Nagaishi; O. Ichimaru; K. Yamafuji

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 476 KB
• Volume: 26
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(86)90194-3

✦ Synopsis

A theoretical discussion is presented on the coupling-current loss in a superconducting sub-cable composed of three or seven multifilamentary wires. Approximate expressions for the induced loss by the application of a changing transverse magnetic field are given as functions of sub-cable parameters such as the thickness of the outer sheath inside the wire and the degree of compaction or solder-filling of the sub-cable, According to the present results, increase of the loss per unit volume of a sub-cable due to first-stage cabling is not as large as predicted by Campbell's theory which is applicable only to a special type of sub-cable composed of many strands.