FIELD: electrical engineering.
SUBSTANCE: faulty grounding section is defined, the closest among all such sections to measurement point for which sum of condensance of positive sequence and condensance of return-to-Earth circuit and condensance of positive sequence and condensance of return-to-Earth circuits, if any, between measurement point and such section exceeds or is equal to certain condensance in faulty circuit. Distance between measured point and faulty points is measured proceeding from condensance values and section lengths.
EFFECT: higher accuracy of pinpointing faulty phase grounding for irregular power lines without increasing computing capacities.
9 cl, 4 dwg
