Transmission Line Restoration Using ERS Structure

Abstract

In the past decades, various ideas have proposed for reconductoring of overhead lines to enhance power transmission capacity considering growing energy demand. Conventional method of reconductoring is use to take couple of weeks but availability of shutdown for a prolong period is a major constraint in line uprating. Emergency restoration structure (ERS) is effective to deliver such challenging task within hardly 4-5 hours line shutdown only. This quick restoration and easiness is mobility features are making ERS versatile for restoration even after any natural disasters. In this article, a case study of 132 kV restorations is described as a conceptual proof of concepts. Successful execution of this project resolved a 400 kV transmission line hindrance between Atur and Indira Puram since March 2017 and was likely to remain idle due to a 132 kV single circuit transmission line crossing its route.