Abstract
This paper deals with the mitigation of electric fields under extra high voltage transmission lines using active and passive shield wires. Two extra high voltage alternating current transmission lines are modeled and analyzed. One line is operating at 220 kV and the other is at 500 kV. The electric field is calculated at one meter above the ground level for the two transmission lines with and without active and passive shield wires using the charge simulation method (CSM). The effect of different shielding parameters on the ground level field is studied. These parameters include the spacing between shield wires and their number of these wires, and their height above ground as well as the value of the voltage applied to the shield wires. Also, the effects of passive and active shield wires on the magnetic field underneath the lines and the electric field on the conductor's surface are highlighted.
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