Patents Assigned to Min-Seok Joo
  • Patent number: 5930095
    Abstract: A superconducting current limiting device protects an electric circuit from a fault current. The device comprises a magnetically saturable core having saturated and non-saturated states and an input coil for electrically coupling the core to the electric circuit, the input coil drawing a current therethrough so that a magnetic flux is generated in the core due to the current. Further, the core includes a main path for drawing the generated magnetic flux and at least two magnetic paths, a first of the magnetic paths drawing a first portion of the magnetic flux, and a second of the magnetic paths drawing a second portion of the magnetic flux and having a damping element for cancelling at least a fraction of the second portion of the magnetic flux to thereby prevent the core from getting into the saturated state.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: July 27, 1999
    Assignees: Back Joo, Min-Seok Joo
    Inventors: Back Joo, Min-Seok Joo, Tae-Kuk Ko