Numerical electromagnetic field analysis of unit step response characteristics of impulse voltage measuring systems

Author

Baba, Yoshihiro ; Ishii, Masaru

Author_Institution

Doshisha Univ., Kyoto, Japan

Volume

19

Issue

1

fYear

2004

Firstpage

21

Lastpage

27

Abstract

Unit step response characteristics of impulse voltage measuring systems are studied with the help of numerical electromagnetics code (NEC-2). Prior to this analysis, the accuracy of a transient analysis by this method is investigated for a simple structure. An impulse voltage measuring system, under application of step voltage, behaves like an antenna until a traveling wave makes several roundtrips in its lead wire. NEC-2 code can analyze such dynamic electromagnetic field around a three-dimensional (3-D) conductor system. In the present paper, the role of a shield ring of a divider for lightning impulse voltage is intensively investigated and discussed.

Keywords

computational electromagnetics; electromagnetic field theory; electromagnetic shielding; method of moments; numerical analysis; step response; transient analysis; voltage measurement; 3D conductor system; NEC-2; NEC-2 code; electromagnetic field analysis; impulse voltage measuring system; lightning impulse voltage; method of moment; numerical electromagnetic codes; resistor divider; shield ring; transient analysis; unit step response characteristics; Antenna measurements; Conductors; Electromagnetic analysis; Electromagnetic fields; Electromagnetic measurements; Moment methods; Resistors; Transient analysis; Voltage measurement; Wire;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2003.820415

Filename

1256352