Long current loops as regular solutions of the equation for coupling currents in a flat two-layer superconducting cable Original Research Article

A wave-like equation describing coupling currents in a flat multi-strand two-layer superconducting cable has been solved to find slowly decaying non-uniform current loops. The maximum time constant of the loop decay is evaluated analytically. Relation between the uniform and non-uniform time constants and its impact on the loss measurement results are discussed.