Characteristics of electric field change preceding negative first return stroke produced by preliminary breakdown

Author

Hazmi, Ali ; Hendri, Zulka ; Mulyadi, Syaifa ; Tesal, Dasrinal ; Daohong Wang ; Takagi, Naofumi

Author_Institution

Dept. of Electr. Eng., Andalas Univ., Padang, Indonesia

fYear

2013

fDate

7-8 Oct. 2013

Firstpage

322

Lastpage

325

Abstract

Understanding the initiation process of preliminary breakdown during negative CG lightning discharges to the ground is important to design a lightning protection system. We observed electric field change preceding negative cloud to ground lightning flashes related to preliminary breakdown in tropical region, Indonesia. The characteristics of electric field change of negative first return stroke produced by preliminary breakdown process were studied. The results showed that arithmetic mean and geometric mean of pre-return stroke separation is 57 ms and 32 ms, respectively. Other statistical parameters also are shown in this paper.

Keywords

electric breakdown; electric fields; lightning; lightning protection; Indonesia; arithmetic mean; electric field change; geometric mean; lightning protection system; negative CG lightning discharge; negative cloud-to-ground lightning flash; negative first return stroke; preliminary breakdown; prereturn stroke separation; statistical parameter; tropical region; electric field change; leader; negative cloud to ground; preliminary breakdown; return stroke;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technology and Electrical Engineering (ICITEE), 2013 International Conference on

Conference_Location

Yogyakarta

Print_ISBN

978-1-4799-0423-5

Type

conf

DOI

10.1109/ICITEED.2013.6676261

Filename

6676261