Calculation of lightning flashovers and backflash level on 230kV transmission lines

Bander J. Al-Qahtani, Mohamed Shwehdi

Research output: Contribution to journalConference articlepeer-review

Abstract

Lightning has been one of the important problems for insulation design of power systems and it is still the main cause of outages of transmission and distribution lines. Lightning caused outages can be reduced by lightning protection devices such as ground wires and lightning arresters. This paper presents a comparative studies used to determine the lightning backflashovers level on 230kV transmission lines utilized by Saudi Electric Company (SEC) in Saudi Arabia, using two well known approaches CIGRE, and the simplified method. The studies include lightning flashovers, backflash analysis, as dependent on the tower design parameters which is considered the main parameters that reduce the rate of lightning bachflashovers in the transmission lines. The study results can be applied to reduce the number lightning flashovers and therefore reduce the transmission lines outages.

Original languageEnglish
Article number492-803
Pages (from-to)90-95
Number of pages6
JournalSeries on Energy and Power Systems
StatePublished - 2005
Event5th IASTED International Conference on Power and Energy Systems, PES 2005 - Marina del Rey, CA, United States
Duration: 24 Oct 200526 Oct 2005

Keywords

  • Backflashovers
  • Lightning flashovers
  • Simulation and ground wires

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