The lightning induced voltages in a transmission line need the knowledge of many parameters such as the peak current, the return stroke velocity, the front duration, the channel attenuation and distortion. Their variation affect the results in a non-predictable way and only one variation can cause a high computational cost in the computation procedure. This work presents a method, based on a statistical tool that provides an analytical formula linking the maximum voltage induced on a transmission line with the front duration and the return stroke speed. The analysis and the proposed formula is validated with the results provided by a verified coupling code.
Lightning Current Parameters Effects on the Induced Overvoltages in Transmission Lines
Mestriner D.;Procopio R.;Brignone M.;Rossi M.;Delfino F.;
2019-01-01
Abstract
The lightning induced voltages in a transmission line need the knowledge of many parameters such as the peak current, the return stroke velocity, the front duration, the channel attenuation and distortion. Their variation affect the results in a non-predictable way and only one variation can cause a high computational cost in the computation procedure. This work presents a method, based on a statistical tool that provides an analytical formula linking the maximum voltage induced on a transmission line with the front duration and the return stroke speed. The analysis and the proposed formula is validated with the results provided by a verified coupling code.
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