Cables and Coils

Cables and coils are complicated compounds of conducting and insulating materials. They come with a large variety of realisations ranging from Litz wire and foil windings to Rutherford cable in superconducting applications. Even when the mesoscopic current distribution in cables and coils may be irrelevant for the primary operation of a device, its internal geometry has a large influence on eddy-current losses, parasitic inductances and capacitances and thermal robustness. Cables and coils are embedded in overall 2D and 3D finite-element models by computational homogenisation or by dedicated multiscale models.