Conductor Scheme Selection for a 500kV Compact Transmission Line in Yunnan Province

As the conditions of the design of the 500 kV compact transmission line project in Yunnan are considerably complicated,the same type of conductor can not be adopted for the whole line.This paper presented the study on the conductor scheme selection for the project.Through technical and economical comparisons,selection of conductor schemes were conducted with all the design conditions for the conventional compact transmission line,heavy icing area,single-circuit and double-circuit transmission incoming and outgoing in substations fully considered.The result of the current study can facilitate other similar projects in the future.