A thought about phase-phase distance of the pulled tower of the compact transmission line

Abstract

To the routine transmission line of 500 kV, because of the metal tower between the two phases, the phase-phase distance do not play the leading role. The CSG company has successfully built and operated the fourth line of TianShengQiao-GuangZhou, a part of which is the compact line between LuoPing-BaiSe(LuoPing YunNan-BaiSe GuangXi) (FCL). We found that the phase-phase distance of the pulled tower can not fit the rules in our checking work, so it is a important factor to the safety of grid which we should control. Along with the development of the grid of the west electricity the east send, for using the routeway resource more efficacious, the fourth line of TianShengQiao-GuangZhou was designed to be a compact line by the CSG company. It is one of the few compact line in China, it also is the first compact line which is built in high height place. The project were designed and finally finished in a no experience condition. May 2005, the line started to run. (3 pages)