Title :
Induced voltages on distribution lines due to lightning discharges on nearby metallic structures
Author :
Piantini, Alexandre ; Janiszewski, Jorge M.
Author_Institution :
Inst. of Electrotech. & Energy, Sao Paulo Univ., Brazil
fDate :
9/1/1998 12:00:00 AM
Abstract :
This paper presents a numerical method for the calculation of voltages induced on overhead lines due to lightning discharges striking a metallic structure in its vicinity. The calculation is done from the determination of the electric and magnetic potentials associated with the charges in the return stroke channel and with the currents that propagate in the channel and in the structure. It is shown that in this situation the induced voltages may differ significantly from those originated by lightning discharges direct to the ground. Comparisons between measured and calculated voltage waveforms confirm the validity of the procedure
Keywords :
lightning; power overhead lines; distribution lines; electric potentials; induced voltages; lightning discharges; magnetic potentials; metallic structures; overhead lines; return stroke channel; voltage waveforms; Computational modeling; Electric potential; Electromagnetic coupling; Electromagnetic measurements; Electromagnetic modeling; Insulation; Lightning; Optical propagation; Power distribution lines; Voltage measurement;
Journal_Title :
Magnetics, IEEE Transactions on
