Patent attributes
An electrical device for current conditioning has a primary spool, a secondary spool which has a quenchable superconductor exhibiting a transition from a low resistive state to a high resistive state when a critical value of the electric current is exceeded. The secondary spool is coupled through a common part of magnetic flux with the primary spool, the secondary spool further has a metallic member 6 which form a closed loop circuit, and a cryostat 5 providing a cooling of the secondary spool. The secondary spool 2,3 has at least one element 3 based on a substantial fraction of a non-quenchable conductor that exhibits a minor dependence of its resistance on current and magnetic field, and a fraction of the quenchable superconductor and at least one turn of the non-quenchable conductor 3 and the quenchable superconductor 2 is electrically jointed in series providing a closed loop circuit.
