| Title |
Voltage Sag Suppressing Characteristics of Flux-Lock Type SFCL with Two Coils Connected in Parallel Using Dual Iron Cores |
| Authors |
Seok-Cheol Ko ; Sung-Hun Lim |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2016.30.5.053 |
| Keywords |
Flux-Lock Type Superconducting Fault Current Limiter(SFCL) ; Fault Current Limiting Characteristics ; Voltage Sag Suppressing Characteristics ; Winding Direction |
| Abstract |
In this paper, the flux-lock type superconducting fault current limiter (SFCL), which is comprised of three windings, two high-TC superconducting (HTSC) elements and dual iron cores, was proposed and the short-circuit tests of the SFCL were performed. From the short-circuit tests, the voltage sag suppressing characteristics of the proposed SFCL as well as the fault current limiting characteristics due to the winding direction of two parallel connected windings were compared. The suggested flux-lock type SFCL, which two parallel connected windings comprising the SFCL were designed to be the additive polarity winding, was confirmed to be more effective than the SFCL designed to be subtractive polarity winding from the voltage sag suppressing operation. On the other hand, from its fault current limiting operation, the SFCL designed with the subtractive polarity winding for two parallel connected windings could be found that a little more superior than the SFCL designed with the additive polarity winding. |