A.C. cable with two concentric conductor configurations of stranded single conductors

Year	Description
1998	Invention patented by Gunter Ries on March 4th, 1998. Abstract: An a.c. cable has at least one cable core (15) with two concentric conductor arrangements (8, 9) used as forward and return conductors. At least one of the conductor arrangements (8, 9) contains a plurality of conductor layers (L.sub.j and L.sub.j ') made of stranded normally conducting or superconducting individual conductors (3). The individual conductors preferably feature high-T.sub.c superconducting materials. The wire angles (.alpha..sub.j, .alpha..sub.j ') in the individual conductor layers (L.sub.j and L.sub.j ') should be selected so as to minimize losses. A calculation formula for the wire angles (.alpha..sub.j, .alpha..sub.j ') is given for this purpose.
Source: selected by the editor from original sources.

Invention: A.C. cable with two concentric conductor configurations of stranded single conductors