Analysis of monitoring effect on Hybrid Electric Field for AC/DC Cross Line

Abstract Electrostatic induction charge which generated by the coupling effect of hybrid electric field AC/DC cross line and metal object under transmission can cause different levels shock injury to human. In order find out distribution law reduce electrostatic induction, this paper set up shielding lines paralleled AC DC respectively on outside side conductors along diagonal parallelogram at crossing point, then measured in areas 750kV 500kV induced voltages states, analyzed power frequency composite field. The results showed that have a reducing lines, average strength is reduced 12.6%, position was far less than limits specified respective standards. Both voltage bare wrapped with adhesive tape increase raise erection height. Under same conditions, conductor 9.3% higher tape. There no obvious difference between parallel vertical methods number degree reduction voltage.