C. R. de Mesquita

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Lightning overvoltages across insulator strings of existing 138- and 69-kV transmission lines were simulated using the hybrid electromagnetic model. It was found that, though the reduction of tower-footing grounding resistance is very effective to decrease lightning overvoltages caused by first strokes, this reduction is saturated around 750-600 kV for(More)
Events of a class, consisting of the subsequent strokes of multiple-stroke flashes presenting the largest peak current, have features that make their effects very severe in terms of insulation stress, notably the combination of a relatively intense peak current and a very short front time. According to instrumented-tower measurements, their median peak(More)
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