Electric and magnetic fields produced by 400kv double circuit overhead lines – Measurements and calculations in real lines and line models

In this paper, the results of systematic measurements and comparative calculations of the electric and magnetic fields in the vicinity of two parallel running 400kV double circuit power lines of the Greek transmission system are presented. The measurements were conducted during the operation of the lines with the usual symmetrical phase conductor arrangement as well as after the application of the optimum phase conductor arrangement for the electric and magnetic field minimization.