Wide electrical conductor having high C-axis strength

摘要

A rotating machine includes a stator and a rotor configured to rotate within the stator. Rotor windings are supported in the rotor and are formed of a laminated electrical conductor in a single-layer saddle coil configuration. The conductor includes a first support lamina, a second support lamina, an insert including a high temperature superconductor disposed between the first and second support lamina, and a filler material surrounding the insert that bonds the insert to each of the first and second support lamina. At the location between the first support lamina and second support lamina corresponding to the location of the insert, the width dimension of the filler material on each side of the insert is at least 10 percent of a width of the conductor. The conductor is configured to carry at least 600 Amperes per turn and have a C-axis tensile strength of at least 21 MPa.

主权项

1. A laminated electrical conductor comprising:
a first support lamina; a second support lamina; an insert including a high temperature superconductor disposed between the first support lamina and the second support lamina; and a filler material surrounding the insert that bonds the insert to each of the first support lamina and the second support lamina, wherein at the location between the first support lamina and second support lamina corresponding to the location of the insert, the width dimension of the filler material on each side of the insert is at least 10 percent of a width of the laminated electrical conductor, and wherein the tensile strength of the laminated electrical conductor along an axis normal to the first support lamina is reliably at least 21 MPa, where the term “reliably at least 21 MPa” refers to a conductor having tensile test data along an axis normal to the first support lamina in which 99.7 percent of the tensile test data lies within three standard deviations of a mean of the tensile test data, and the difference between the mean of the tensile test data and three standard deviations of the mean of the tensile test data is at least 21 MPa.