Designing an Optimal Lightning Protection Scheme for Substations Using Shielding Wires

  • A. Khodadadi Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
  • M. H. Nazari Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran
  • S. H. Hosseinian Electrical Engineering Department, Amirkabir University of Technology, Tehran, Iran


An optimal lightning protection scheme for a substation using shielding wires is investigated in this paper through computer software analysis. An economic approach is utilized by choosing a reasonable trade-off between protection, the number of shielding wires and the heights of them from the ground. This study is initially applied to a simple two-wire system and then extended to a sample substation. The solution for each problem is executed in MATLAB and 3-D realization is shown.

Keywords: substation protection, lightning stikes, shielding wires, computer aid analysis


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