| Title |
A Software System for Evaluation Setting and Coordination of Protective Relays in Power Transmission System |
| Authors |
최면송(Choe, Myeon-Song) ; 이승재(Lee, Seung-Jae) ; 민병운(Min, Byeong-Un) ; 조필성(Jo, Pil-Seong) |
| Keywords |
Protective relay ; Checking setting values ; Evaluate coordination ; Software system |
| Abstract |
A software system that has functions of setting and coordination checking of protective relays in power transmission system has been developed. The developed system utilizes database system to store the setting values of protective relays, power system parameters, checks the relay operation and evaluates coordination of relays in real Power system or test system. The fault data to simulates a fault to evaluate the coordination of relays is generated by PSS/E and EMTP. A universal logic generator module is added to adopt the variation of each relay＇s trip logic. The proposed system has been verified through many tests in the case study, and proved to be very powerful in inspecting the setting values and coordination of relays. |