Optimization of Conductor Transposition and Configuration of Insulated Ground Wire on Overhead Transmission Line

Conductor transposition is necessary to reduce unbalanced current in long transmission lines. This article describesa optimized way of transposition, which is equivalent to the traditional way in this respect, hut can save costs and materials. Also, insulated ground wire is often adopted to reduce the energy losses on ground wires. The optimum configUrationwhich shall be used under different circumstances is introduced in this paper.