TY - GEN
T1 - A Study on Modeling and Verification of the Percentage Differential Relay for the Protection of AC Electric Railway Feeding System
AU - Cho, Gyu Jung
AU - Kim, Min Sung
AU - Kim, Dong Hyun
AU - Kim, Chul Hwan
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - In general, a Scott-transformer is used to supply the single-phase power for the Korean AC electric railway feeding system. In particular, the Korean Autotransformer feeding system has a different configuration compared to those of other countries, therefore, it has certain distinctive characteristics. In addition, a percentage differential relay is widely and globally utilized for protecting the transformers. However, detailed modeling and simulation for the relay protecting the Korean AC electric railway feeding system is not performed enough. Thus, in this paper, we modeled and verified the percentage differential relay for AC electric railway feeding system by using PSCAD/EMTDC. A simple method to prevent malfunction due to a saturation of the current transformer is suggested as well.
AB - In general, a Scott-transformer is used to supply the single-phase power for the Korean AC electric railway feeding system. In particular, the Korean Autotransformer feeding system has a different configuration compared to those of other countries, therefore, it has certain distinctive characteristics. In addition, a percentage differential relay is widely and globally utilized for protecting the transformers. However, detailed modeling and simulation for the relay protecting the Korean AC electric railway feeding system is not performed enough. Thus, in this paper, we modeled and verified the percentage differential relay for AC electric railway feeding system by using PSCAD/EMTDC. A simple method to prevent malfunction due to a saturation of the current transformer is suggested as well.
KW - AC electric railway feeding system
KW - fault diagnostic
KW - protective relay
KW - railway electrification
UR - https://www.scopus.com/pages/publications/85063232161
U2 - 10.1109/TENCON.2018.8650244
DO - 10.1109/TENCON.2018.8650244
M3 - Conference contribution
AN - SCOPUS:85063232161
T3 - IEEE Region 10 Annual International Conference, Proceedings/TENCON
SP - 752
EP - 756
BT - Proceedings of TENCON 2018 - 2018 IEEE Region 10 Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE Region 10 Conference, TENCON 2018
Y2 - 28 October 2018 through 31 October 2018
ER -
