| Title |
Operational Characteristics of Bridge Type SFCL Using Switching Operation of Resistive Type HTSC Element |
| Authors |
임성훈(Lim Sung-Hun) ; 이상일(Lee Sang-Il) ; 최효상(Choi Hyo-Sang) ; 한병성(Han Byoung-Sung) |
| Keywords |
Superconducting Faut Current LImiter(SFCL) ; Bridge Type ; Switching Operation ; Resistive Type |
| Abstract |
We proposed the bridge type superconducting fault current limiter(SFCL) using switching operation of high-Tc superconducting(HTSC) thin film. The proposed bridge type SFCL consists of HTSC thin film, a diode bridge and a dc reactor. The controller for the operation of an interrupter is required in the conventional bridge type SFCL to prevent the continuous increase of fault current after a fault happens. On the other hand, the proposed bridge type SFCL can limit the fault current without the interrupter and the controller for its operation by the resistance generated when the gradually increased fault current exceeds HTSC thin film's critical current. We calculated the time when the gradually increased fault current started to be limited by the resistance generated in HTSC thin film after a fault happened and confirmed that it could be dependent on the amplitude of source voltage. The experimental results well agreed with the calculated ones from simulation. |