낙뢰에 의한 전계와 자계 파형의 파라미터

Title
낙뢰에 의한 전계와 자계 파형의 파라미터
Other Titles
Parameters of The Electric and Magnetic Fields Due to Cloud-to-Ground Lightnings
Authors
이복희
Keywords
낙뢰, 전계, 자계 파형, Magnetic Fields, Cloud-to-Ground Lightnings
Issue Date
1998
Publisher
한국전자파학회
Series/Report no.
한국전자파학회논문지; Vol.9 No.3
Abstract
One of the topics concerning the electromagnetic compatibility of modern electronic circuits is to take protection from transient overvoltages caused by not only cloud-to-ground lightnings but also induced lightning discharges. In this paper, the vertical electric and horizontal magnetic fields from cloud-to-ground lightnings were measured and analyzed. The electric and magnetic fields waveforms associated with cloud-to-ground lightnings have several subsidiary peaks which decrease with time. There were not much differences between the electric and magnetic field due to long distance cloud-to-ground discharges. Average values of 10?90 % rise times of electric fields are 4.65 μs for the positive cloud-to-ground lightning and 3.29 μs for the negative cloud-to-ground lightning, respectively. Also, in the positive and negative cloud-to-ground lightning discharges, the zero-to-zero crossing times in the wave tail of magnetic fields are significantly longer than those of the electric fields.
URI
http://uci.or.kr/G300-j12263133.v9n3p359
http://dspace.inha.ac.kr/handle/10505/29512
Appears in Collections:
College of Engineering(공과대학) > Electrical Engineering (전기공학) > Local Access Journal, Report (전기공학 논문, 보고서)

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse