Title :
Placing and setting of out-of-step relays
Author :
de Villiers, L.N.F. ; Van Coller, J.M.
Author_Institution :
Eskom, Johannesburg, South Africa
Abstract :
This paper shows that shunt elements (loads, shunt reactors, et cetera) should be considered when constructing the impedance locus that the swing traces in the complex plane. A method for constructing the impedance locus at any location in a power system with or without shunt elements is presented. Rules for identifying the busbar that is best suited for placing out-of-step (OOS) relays are presented.
Keywords :
busbars; electric impedance measurement; power system faults; power system protection; relay protection; busbars; complex plane analysis; impedance locus; out-of-step relay placement; out-of-step relay setting; power system faults; power system protection; shunt elements; swing traces;
Conference_Titel :
Developments in Power System Protection, 2004. Eighth IEE International Conference on
Print_ISBN :
0-86341-385-4
DOI :
10.1049/cp:20040182
