Application possibilities of special lightning protection systems of overhead distribution and transmission lines

•The special lightning protection systems of overhead lines are analyzed.•Semi-statistical calculations in the EMTP-ATP software are performed.•Calculations are performed for 35 kV, 110 kV and 220 kV overhead lines.•Towers grounding resistance values are varied in wide range.•Efficiencies of special...

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Bibliographic Details
Published in:International journal of electrical power & energy systems 2018-09, Vol.100, p.482-488
Main Author: Banjanin, Mladen S.
Format: Article
Language:English
Subjects:
Guy wire
Lightning protection
Line arresters
Overhead line
Underbuilt wire
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Summary:•The special lightning protection systems of overhead lines are analyzed.•Semi-statistical calculations in the EMTP-ATP software are performed.•Calculations are performed for 35 kV, 110 kV and 220 kV overhead lines.•Towers grounding resistance values are varied in wide range.•Efficiencies of special lightning protection systems are estimated. Reduction of the overhead lines back-flashover rate (BFR) after application of special lightning protection systems is analyzed in this paper. The following lightning protection systems are considered: line arresters, underbuilt wires, additional shield wire and guy wires. Partial or combined efficiencies of mentioned lightning protection systems are analyzed. Overhead distribution (35 kV) and transmission (110 kV and 220 kV) lines BFR are estimated through the semi-statistical calculation procedure as suggested in international technical documents. System equivalent circuits in the EMTP-ATP software are created with carefully chosen models and parameters of elements. Pursuant to the estimated results, conclusions about application possibilities of different lightning protection systems are given.
ISSN:0142-0615
1879-3517
DOI:10.1016/j.ijepes.2018.03.006