13th International Symposium on High Voltage Engineering - ISH 2003, Delft (Netherlands). 25-29 August 2003
Summary:
The usual lightning protection of high volt-age overhead lines is the usage of groundwires. In some cases, they cannot be used. This paper evaluates the effectiveness of different alternative protection schemes using surge arresters for a 132kV unshielded overhead line. The protection schemes are: a surge arrester at each conductor and tower, a surge arresters only at the central conductor and every tower (the configuration studied has the central conductor higher than lateral ones at therefore acts as a shield wire) and a surge arrester at each conductor and one out of two towers. The last two protective schemes are consid-ered due to economic reasons. Number of annual flashovers in a 100km line with the different protec-tion schemes is computed following IEEE recommen-dations. Direct, induced and back flashovers are con-sidered. Over-voltages are computed using the ATP software package, distinguishing between tower, cen-tral conductor and lateral conductor lightning strokes. Conclusions are presented about the effectiveness of each protective scheme.
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Published in ISH 2003, pp: 1-4, ISBN: 9077017798
Publication date: 2003-08-29.
Citation:
J. Rivier, L. Rouco, J. del Castillo, D. Vindel, G. Vargas, A. Herranz, Evaluation of lightning protection of unshielded 132kV overhead lines using surge arresters, 13th International Symposium on High Voltage Engineering - ISH 2003, Delft (Netherlands). 25-29 August 2003. In: ISH 2003: Proceedings of the XIIIth International Symposium on High Voltage Engineering : Delft, Netherlands, August 25 - 29, 2003 — [Elektronische Ressource] (English), e-ISBN: 9077017798
