CALCULATION OF OVERVOLTAGES CAUSED BY LIGHTNING STROKES IN THE TOWER OF AN OVERHEAD LINE

Abstract

On the bases of the field theory a calculation method is elaborated with respect to the grounding of the tower, a lightning model with finite lightning velocity, the retardation of the electromagnetic wave and the effect of the tower as well. In the calculation Fourier-transform for the time dependence and Hankel- transform for the radial variable is used. Numerical results computed on the basis of this new method are presented and discussed.