Lightning protection on transmission lines

Installation of ground wires is the basic method for protection of an OHL against lightning. Back-flashovers are the most frequent kind of trip outs in the case when an OHL is equipped with ground wires. At medium voltage OHL with high tower footing impedance almost every lightning strike to the line causes a trip out. The secondary effect of the lightning stroke became the major concern due to strong magnetic field around the downward conductor connecting the lightning rod to the grounding system. The prevention of the direct lightning strokes into the premise is one of the ways to eliminate the damaging consequences of the secondary effect. This report deals with brief overview on Prevention methods of lightning protection namely Charge Transfer System. The efforts to evaluate the influence of the space charge on the total electric field are undertaken in this paper. It illustrate emphatically the lightning protection technique that we advanced by rejecting and combining rejection with attraction.