Hybrid computational technique for the estimation of corona power loss associated with bundled transmission lines

A hybrid iterative computational technique based on the finite element (FE) and charge simulation (CS) methods is presented for the estimation of corona power loss on bundle conductors. The investigated bundled transmission lines consist of one-, two- and three- sub-conductors. The effects of the number of sub-conductors, sub-conductors orientation as well as its radii and height are investigated and their implications for the corona power loss is demonstrated. A laboratory model was built to investigate the effectiveness of the new iterative technique. It has been found that the present results agreed well with the experimental values.