The Peak Value of Lightning-Induced Voltages in Overhead Lines Considering the Ground Resistivity and Typical Return Stroke Parameters

作者：Paulino Jose Osvaldo S^*; Barbosa Celio Fonseca; Lopes Ivan J S; Boaventura Wallace do Couto

来源：IEEE Transactions on Power Delivery, 2011, 26(2): 920-927.

DOI：10.1109/TPWRD.2010.2095887

• Induced voltage
• lightning
• overhead distribution line
• soil conductivity

This paper presents an approximate formula for the peak value of lightning-induced voltages in an overhead line, considering the ground resistivity and a trapezoidal lightning return stroke current waveform with typical parameters 3.8-mu s front time and 120-m/s velocity. It presents an improvement in a formula previously proposed by the authors. The formula is used with a probabilistic approach, and the results are compared with theoretical and experimental results available in the literature. The results show that the proposed formula, although very simple, is in good agreement with results obtained using complete formulations and experimental data.

• 出版日期2011-4