Method for setting the resistive reach on quadrilateral characteristics of distance relays
| Title | Method for setting the resistive reach on quadrilateral characteristics of distance relays |
| Publication Type | Conference Paper |
| Year of Publication | 2009 |
| Authors | Sorrentino, E, Rojas E, Hernandez J |
| Conference Name | Proceedings of the 44th International Universities Power Engineering Conference |
| Date Published | September |
| Conference Location | University of Strathclyde |
| Keywords | Power System Operation and Control Power System Protection 4 |
| Abstract | A new method for setting the resistive reach on quadrilateral characteristics of distance relays is proposed in this article. The method is based on: a) analysis of the impedances seen by the relay (apparent impedances); b) explicit definition of the protection desirable attributes for each analysed zone (selectivity, sensitivity). In the proposed method, the resistive reach setting is calculated assuming that the reactive reach setting has been previously defined. The proposed method was applied in an example with 18 distance relays and its solution was compared with a conventional simplified solution. The conventional simplified solution is to set the resistive reach by multiplying the reactive reach by a constant factor. The results obtained with the proposed method are different since there are particular solutions for each relay location. |
