| Title |
Quench Characteristics of Flux-Lock Type Superconducting Fault Current Limiter According to The Number of YBCO |
| Authors |
이상일(Lee Sang-Il) ; 박형민(Park Hyoung-Min) ; 최효상(Choi Hyo-Sang) |
| Keywords |
자속구속형 초전도 한류기 ; 초전도소자 직렬연결 ; 동시퀜치 ; |
| Abstract |
We investigated the quench characteristics of a flux-lock type superconducting fault current limiter (SFCL) depending on the number of the serial connection between the superconducting elements at the subtractive polarity winding of a transformer. The flux-lock type SFCL consists of two coils. The primary coil is wound in parallel to the secondary coil through an iron core, and the secondary coil is connected to the superconducting elements in series. The operation of the flux-lock type SFCL can be divided into the subtractive and the additive polarity windings depending on the winding directions between the primary and secondary coils. In this paper, the analyses of voltage, current, and resistance of superconducting elements in serial connection were performed to increase the power capacity of flux-lock type SFCL. The power burden was reduced through the simultaneous quenching between the superconducting elements. This enabled the flux-lock type SFCL to be easy to increase the capacity of power system. |