Current supply device for electric apparatus kept at low temp. esp. superconducting cable and magnet coils

摘要

The device has at least two conductive elements (3a,b) at different electric potentials. These extend between different temp. levels. The conductor elements are electrically insulated from each other and are associated with a substrate device made of a material of high thermal conductivity. The device also has an arrangement for cooling the conductor elements and the substrate. The conductive elements (3a,b) are arranged in good heat conducting connection with a common substrate body (5) forming the substrate device, via an electric insulator (6a,6). The insulator is preferably made of ceramic, e.g. aluminium oxide.