METHOD FOR INTERVAL DETERMINATION OF POWER TRANSMISSION LINE FAULT LOCATION

摘要

FIELD: electricity.;SUBSTANCE: use: in electric power engineering. According to the method of interval determination of point of damage of power transmission line using its model, recording of currents and voltages, readings are converted into complexes of currents and voltages, imitating model of power transmission line is used to reproduce modes of line damage. At that, imitations of damages at various power transmission parameters and in various points of power transmission line are carried out, errors are calculated between measured on object and determined as a result of imitation by corresponding currents and voltages, required value of error is set, and values of coordinate of simulated point of damage are selected as an estimate of distance to point of damage, at which calculated values of error are less than a given value.;EFFECT: broader functional capabilities of the method while improving accuracy.;1 cl, 8 dwg, 9 tbl