Title :
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
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;
Conference_Titel :
Information Technology and Electrical Engineering (ICITEE), 2013 International Conference on
Conference_Location :
Yogyakarta
Print_ISBN :
978-1-4799-0423-5
DOI :
10.1109/ICITEED.2013.6676261
