This paper evaluates the effect of a lightning strike directly on the 24 kV distribution lines in
Thailand, where such strikes are one of the main causes of power outages. The voltage …

This paper analyzes the effect of the integration path of the electric field on the grounding
impedance measurements. It is shown that the integration path is not relevant for low …

This paper presents an approximate formula for the peak-value of the lightning overvoltages
induced on aerial lines installed over high resistivity ground, which is valid up to 10 kΩ m …

The probability of flashovers due to indirect lightning on overhead lines is us ually calculated
assuming a statistical distribution for the induced voltages, and a deterministic and specified …

This paper presents an improved analytical expression for the calculation of the lightning
horizontal electric field considering high values of ground resistivity, which is validated by …

Lightning performance evaluation is aimed at classifying transmission lines into different risk
levels of thunderstorm-induced trip-out. Its applications range from better lightning protection …

The lightning performance of an overhead line due to indirect strokes is a measure of its
ability to resist to surges produced by nearby lightning. The estimation of the lightning …

This paper analyzes three time-domain expressions for the surface impedance, which
allows the calculation of the horizontal electric field produced by a lightning return stroke …

This paper presents a set of formulas to compute the peak-value of LIVs on aerial
distribution lines, considering the presence of a multi-grounded neutral in the line. The …

In this paper, we propose a new channel-base current function for lightning studies. Main
features of the new function are presented, also by comparison with existing expressions; …