Analysis of Fault Current Limiting Characteristics According to Variation of Fault Current level in Integrated Three-Phase Flux-Lock Type Superconducting Fault Current Limiting

사고전류 변화에 따른 일체화된 삼상자속구속형 고온초전도 사고전류제한기의 사고전류 제한 특성 분석

The analysis of fault current limiting characteristics according to variation of fault current level in the integrated three-phase flux-lock type superconducting fault current limiter (SFCL), which consisted of three-phase flux-lock reactor wound on an iron core with the same turn's ratio between coil 1 and coil 2 for each single phase, was performed. To analyze the current limiting characteristics of this integrated three-phase flux-lock type SFCL, the short circuit experiments was carried out the various three-phase faults such as the single line-to-ground fault, the double line-to-ground fault, the triple line-to-ground fault. From the experimental results, the fault current limiting characteristic was improved according to increase of fault current level.