Determining the Number of Influencing Lines for Calculating the Voltage Induced on the Disconnected Overhead Power Line
The existing practice of subjectively taking into account only one or more arbitrarily selected overhead lines as influencing ones may yield an essentially underestimated assessment of the induced voltage. For determining the number of influencing lines sufficient for reliably calculating the voltage induced on the disconnected overhead line, the notion of influencing zone on the disconnected power line is introduced. All overhead power lines located in the zone of influence on the disconnected overhead line are regarded as influencing lines. A numerical method for determining the size of the zone of influence on the disconnected overhead line is developed, which opens the possibility of determining in practice the sufficient number of influencing lines for reliably calculating the voltage induced on the disconnected overhead line. The developed method has been used for calculating the zone of influence on real overhead lines.