Comparison between two Calculation Tools for the Appraisal of Lightning Induced Voltages

The paper compares two computational tools for the calculation of the overvoltages induced by indirect lightnings, namely LIOV and CiLIV. Both tools were already validated against experimental results and with each other, showing a good agreement, in general. Some limited discrepancies in the voltage waveforms have been documented in previous papers due to different assumptions and numerical issues that the present contribution aims at assessing. Moreover, this paper compares the results of both calculation tools with those reported in the literature for a reduced-scale experiment and for the case of a power line with surge arresters installed every 500 m.

Automated summary

This paper compares two computational tools, LIOV and CiLIV, for calculating overvoltages induced by indirect lightnings. The study validates both tools against experimental results and each other, and identifies discrepancies in voltage waveforms resulting from different assumptions and numerical issues.