Response of distribution networks to direct and indirect lightning: Influence of surge arresters location, flashover occurrence and environmental shielding

被引：22

作者：

Borghetti, Alberto ^{[1
]}

Napolitano, Fabio ^{[1
]}

Nucci, Carlo Alberto ^{[1
]}

Tossani, Fabio ^{[1
]}

机构：

[1] Univ Bologna, Bologna, Italy

来源：

ELECTRIC POWER SYSTEMS RESEARCH | 2017年 / 153卷

关键词：

Electromagnetic transients; Lightning induced overvoltages; Lightning protection; Overhead distribution lines; Surge arresters; OVERHEAD DISTRIBUTION LINES; HORIZONTAL ELECTRIC-FIELD; INDUCED VOLTAGES; PERFORMANCE; FORMULATION;

D O I：

10.1016/j.epsr.2016.12.009

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The paper deals with the response of distribution networks to direct and indirect lightning. The response of the network is analyzed with the aim of inferring the mean time between failures of the connected transformers. This is accomplished taking into account the voltage at the utility frequency, the flashovers occurrence in the line insulators, the location of surge arresters, and the shielding provided by nearby buildings. Two different transformer failure criteria are assumed: a critical value and a disruptive effect model. The results make reference to multi-conductor overhead systems with two different topologies: simple straight line and a real feeder with laterals. It is shown that such a detailed lightning performance analysis is useful in order to select the most appropriate strategy for the installation of surge arresters, which may allow the achievement of the desired mean time between failures at affordable costs. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：73 / 81

页数：9

共 37 条

[1] TRANSIENT-RESPONSE OF MULTI-CONDUCTOR TRANSMISSION-LINES EXCITED BY A NONUNIFORM ELECTROMAGNETIC-FIELD [J].