Abstract
An exact closed form solution for the calculation of lightning-induced voltages on overhead lines has been recently proposed by A. Andreotti et al. (2012). Predictions of this exact formulation are compared here to those based on approximate analytical solutions proposed in the literature. DOI: http://dx.doi.org/10.5755/j01.eee.20.5.2967
Highlights
Distribution lines are very sensitive to nearby lightning strike events, and this can cause power quality problems
A typical configuration that can be found in the calculation of lightning induced voltages is represented by a lossless, single conductor line, located over a perfectlyconducting ground and illuminated by a lightning field produced by a linearly-rising current which propagates according to the Transmission Line model [19], [20]
We will briefly review the formula proposed by Andreotti et al [25] for the evaluation of the induced voltage at x = 0 in the case of a linearly-rising current
Summary
Distribution lines are very sensitive to nearby lightning strike events, and this can cause power quality problems. For this reason, a study on lightning-induced voltages shall be carried out. Many computer codes use analytical solutions for the evaluation of lightning induced effects [17]. A typical configuration that can be found in the calculation of lightning induced voltages is represented by a lossless, single conductor line, located over a perfectlyconducting ground and illuminated by a lightning field produced by a linearly-rising current which propagates according to the Transmission Line model [19], [20].
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