An Arc Furnace as a Source of Voltage Disturbances—A Statistical Evaluation of Propagation in the Supply Network

This article presents the results of measuring Pst indicators at three points a power system supplying large source voltage disturbances—an arc furnace. Measurements were made levels: 30, 110, and 400 kV. Recorded values each point subjected to statistical analysis, probability distributions adjusted their histograms, nature changes in basic parameters these with distance from disturbances was indicated. The adjustments using modified firefly algorithm.