Title :
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
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;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2003.820415
