Title :
Accurate calculation and physical measurement of trasmission line parameters to improve impedance relay performance
Author :
Dierks, Alexander ; Troskie, Harry ; Kruger, M.
Author_Institution :
Alectrix
Abstract :
To accurately set an impedance relay it is imperative to know the impedance of the transmission line as well as the earth return path accurately. The electrical impedance parameters of transmission lines are determined either by using suitable software tools or by physically measuring the impedance. Both techniques yield comparable results, if the correct parameters are entered into the software tool
Keywords :
power transmission lines; power transmission protection; relay protection; software tools; earth return path; impedance relay; software tools; transmission line parameters; Conductivity; Conductors; Earth; Impedance measurement; Poles and towers; Power system relaying; Power transmission lines; Relays; Software tools; Wires;
Conference_Titel :
Power Engineering Society Inaugural Conference and Exposition in Africa, 2005 IEEE
Conference_Location :
Durban
Print_ISBN :
0-7803-9326-0
DOI :
10.1109/PESAFR.2005.1611864
