Breakdown Characteristics of Liquid Nitrogen in Strongly Inhomogeneous Electric Fields

Resistive superconducting fault current limiters (R-SCFCLs) based on second-generation superconducting tapes (2G tapes) are successfully used in the medium-voltage level. To develop R-SCFCLs for the high-voltage application exceeding 100 kV, it is necessary to know the dielectric properties of liquid nitrogen more in detail, particularly if sharp edges, occurring for example at 2G tapes or at connection conductors, cannot be avoided.