Abstract
An approach to the recognition of a damaged branch of a power-transmission line is described the peculiarity lies in measuring the ratio of the current mode voltage to its emergency component, as well as the representation of this measurement by two types of hodographs. Each branch is characterized by its own a priori hodograph. Its main parameter is the argument of the internal resistance of the electrical network as an equivalent generator relative to the branch. The damage-recognition algorithm implemented in the process of monitoring the power line consists of two steps, the first of which is the transformation of the current information into a coordinate hodograph of the same measurement; this is a function of the coordinates of the place of the alleged damage. The second step is determination of the coordinates of the intersection points of the coordinate hodograph with the a priori hodographs and identification of the one in which the coordinates of the intersecting hodographs coincide, which indicates a damaged branch.
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Translated by F. Baron
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Lyamets, Y.Y., Martynov, M.V. & Nikonov, I.Y. Recognition of a Damaged Branch during Unidirectional Observation of a Power Line. Russ. Electr. Engin. 92, 606–611 (2021). https://doi.org/10.3103/S1068371221100126
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DOI: https://doi.org/10.3103/S1068371221100126