| Title |
A Study on the Application of SFCL on 22.9 kV Bus Tie for Parallel Operation of Power Main Transformers in a Power Distribution System |
| Authors |
온민귀(On, Min-Gwi) ; 김명후(Kim, Myoung-Hoo) ; 김진석(Kim, Jin-Seok) ; 유일경(You, Il-Kyoung) ; 임성훈(Lim, Sung-Hun) ; 김재철(Kim, Jae-Chul) |
| DOI |
https://doi.org/10.5370/KIEE.2011.60.1.020 |
| Keywords |
SFCL ; Bus tie ; Parallel operation ; Power main transformers ; Circuit breaker ; Power distribution system |
| Abstract |
This paper analyzed the application of Superconducting Fault Current Limiter (SFCL) on 22.9 [kV] bus tie in a power distribution system. Commonly, the parallel operations of power main transformers offer a lot of merits. However, when a fault occurs in the parallel operation of power main transformer, the fault currents might exceed the interruption capacity of existing protective devices. To resolve this problem, thus, the SFCL has been studied as the fascinating device. In case that, Particularly, the SFCL could be installed to parallel operation of various power main transformers in power distribution system of the Korea Electric Power Corporation (KEPCO) on 22.9 [kV] bus tie, the effect of the resistance of SFCL could reduce the increased fault currents and meet the interruption capacity of existing protective devices by them. Therefore, we analyzed the effect of application and proposed the proper impedance of the R-type SFCL on 22.9 [kV] bus tie in a power distribution system using PSCAD/EMTDC. |