DocumentCode :
1227396
Title :
Evaluation of line surge arrester failure rate for multipulse lightning stresses
Author :
Zanetta, Luiz Cera, Jr.
Author_Institution :
Escola Politecnica, Sao Paulo Univ., Brazil
Volume :
18
Issue :
3
fYear :
2003
fDate :
7/1/2003 12:00:00 AM
Firstpage :
796
Lastpage :
801
Abstract :
This paper develops a method to analyze energy stresses on transmission line surge arresters. The approach computes the failure rate of arresters due to energy stresses, convolving the density probabilities of first and subsequent pulses. Multipulse stroke effects are considered in a 138 kV line case study, typical of single circuit lines, located in regions with high densities of ground flashes, in SE Brazil. The proposed method provides an improved insight into energy stress evaluation for selection of line surge arresters.
Keywords :
arresters; lightning protection; power overhead lines; power transmission protection; 138 kV; SE Brazil; density probabilities; high ground flash density; insulation coordination; line surge arrester failure rate; line surge arresters; multipulse lightning stresses; multipulse stroke effects; single circuit lines; transmission line surge arresters; Arresters; Distributed parameter circuits; EMTP; Electromagnetic modeling; Flashover; Insulation; Lightning; Poles and towers; Stress; Surges;
fLanguage :
English
Journal_Title :
Power Delivery, IEEE Transactions on
Publisher :
ieee
ISSN :
0885-8977
Type :
jour
DOI :
10.1109/TPWRD.2003.813862
Filename :
1208358
Link To Document :
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