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A mathematical technique for the optimum reach setting of distance relays considering system uncertainties
, Hasan Imam M.
Published in Elsevier
1989
Volume: 17
   
Issue: 2
Pages: 101 - 108
Abstract
A mathematical technique to determine quantitatively the optimum reach setting of the first zone of a distance relay is presented. The problem is formulated by considering the simultaneous effect of various system uncertainties. Also, the 'optimum sensitivity analysis' is introduced for distance relays. This analysis determines the variation range of system parameters over which the optimum reach setting remains near-optimal. Simulation results are presented to illustrate the application of this technique. The factors considered in this simulation are transmission line parameter uncertainties, metering errors, variations in load and charging currents, and changes in zero-sequence mutual coupling. © 1989.
About the journal
JournalData powered by TypesetElectric Power Systems Research
PublisherData powered by TypesetElsevier
ISSN03787796
Open AccessNo