Compound superconducting twisted wire and rewinding method for compound superconducting twisted wire

A compound superconducting twisted wire comprising a plurality of compound superconducting strands being twisted to form a twisted structure,

• wherein each of the compound superconducting strands comprises a core-like compound superconductor part, a cylindrical reinforcing part and a cylindrical stabilizing part,
• wherein the core-like compound superconductor part comprises a plurality of compound superconducting filaments and a first matrix, the compound superconducting filaments each comprising a compound superconducting phase, the first matrix comprising the plurality of compound superconducting filaments embedded therein and a first stabilizing material,
• wherein the cylindrical reinforcing part is disposed on an outer circumferential side of the compound superconductor part, and comprises a plurality of reinforcing filaments and a second matrix, the second matrix comprising the plurality of reinforcing filaments embedded therein and a second stabilizing material,
• wherein the cylindrical stabilizing part is disposed on at least one side of an inner circumferential side and an outer circumferential side of the reinforcing part, and comprises a third stabilizing material, and
• wherein a volume ratio of the reinforcing part relative to the compound superconducting strand is larger than a volume ratio of the compound superconductor part relative to the compound superconducting strand.