Computer Analysis of Electrostatically Induced Currents on Finite Objects by EHV Transmission Lines

A method is presented which allows the evaluation of electrostatically induced currents by EHV transmission lines in objects where fringing effects are not negligible and consequently the problem cannot be reduced to the two-dimensional case. A digital program is developed based mainly on experimental results obtained on an air model, the validity of which is shown by comparison with measurements made in the field and in the electrolytic tank. General equations are derived based on these results and a digital program is established for their solutions.