Patent ID: 9197060
Filing Date: 2015-11-24
Classification: H01F,H02H,Y02E

Abstract:
1. An inductive fault current limiter, comprising: a superconducting, short-circuited secondary coil assembly; and a normally conducting primary coil assembly having a multiplicity of turns, wherein said primary coil assembly and said secondary coil assembly are disposed substantially coaxially with respect to each other and partially interleaved in each other, said primary coil assembly having a first coil section and a second coil section, with turns of said first coil section being disposed radially inside said secondary coil assembly and turns of said second coil section being disposed radially outside said secondary coil assembly, wherein said secondary coil assembly comprises a first coil section and a second coil section, said first coil section of said secondary coil assembly being disposed radially inside said second coil section of said secondary coil assembly and further comprising a normally conducting shunt configuration disposed radially between said first coil section of said secondary coil assembly and said second coil section of said secondary coil assembly, wherein said shunt configuration has one or more closed shunt rings disposed radially between said first coil section of said secondary coil assembly and said second coil section of said secondary coil assembly.