Improvement of an overhead distribution feeder performance against lightning considering the wire-guard protection

Author

Cabral, Roberto J. ; Gazzana, Daniel S. ; Leborgne, Roberto C. ; Bretas, Arturo S. ; Dias, Guilherme A D ; Telló, Marcos

Author_Institution

Dept. of Electr. Eng., UFRGS Univ., Porto Alegre, Brazil

fYear

2012

fDate

2-7 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

This paper presents a study about the influence of the wire-guard as a protection system in overhead distribution line in comparison with unprotected topology against lightning. A real feeder was considered as a case study using ATP-EMTP software. Practical aspects related to the modeling of a distribution line are presented. Simulation results show that the shielding configuration ensures a protection significantly better than the actual topology, around 10 times in terms of lightning peak current. Thus, the wire-guard can improve the immunity of distribution system against atmospheric discharges.

Keywords

lightning protection; power distribution protection; shielding; ATP-EMTP software; atmospheric discharges; distribution line; distribution system immunity; lightning; lightning peak current; overhead distribution feeder performance; overhead distribution line; protection system; shielding configuration; unprotected topology; wire-guard protection; Analytical models; EMTP; Manuals; Transient analysis; ATP-EMTP software; distribution lines; flashover and back-flashover; lightning protection system; transient analysis; wire-guard;

fLanguage

English

Publisher

ieee

Conference_Titel

Lightning Protection (ICLP), 2012 International Conference on

Conference_Location

Vienna

Print_ISBN

978-1-4673-1898-3

Electronic_ISBN

978-1-4673-1896-9

Type

conf

DOI

10.1109/ICLP.2012.6344291

Filename

6344291