Document Type : Research Paper



Upgrading the voltage level of a transmission line is named as one solution to increase the transmitted power. This paper introduces the results of a research project in which the upgrade of Saravan-Sooran double circuit transmission system from 63 kV to 230 kV is studied. In this context, the towers remain in their current locations, where the new structure of towers and insulators as well as the conductors are presented using the weather condition in Sistan-Baloochestan province. Four designs are presented as alternatives of the available design, considering the economical analysis of the transmission system. The finalized chosen design satisfies significant savings for the system, while providing both right-of-way and required standards.