INFLUENCE OF PARALLEL LINE MUTUAL COUPLING ON DISTANCE RELAY OPERATION.

Autor: KMEC, Miroslav, BEŇA, Ľubomír, LISOŇ, Lukáš
Předmět:
Zdroj: Acta Electrotechnica & Informatica; 2014, Vol. 14 Issue 4, p35-41, 7p
Abstrakt: When two or more lines are running parallel to each other, mutual impedances between the lines influence the voltage and current profile measured by protective relays installed on each line. In this article the behavior of a distance relay on a double circuit transmission line is analyzed and simulated using Matlab/Simulink software. This article discusses about the influence of mutual impedance on impedance measured by distance protection and shows possibility of compensation these adverse effects using different compensation factors. Double-circuit 400 kV overhead lines supplied from two sides were used for this purpose. Phase-to-earth faults in different configurations of parallel lines in power systems were simulated on this network. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index