Estimativa do custo de implantação de um sistema trifásico a dois fios para repotencialização de redes rurais monofásicas

Leyla Kräulich; Lucas K. Centenaro; Jean P. Rossini; Adriano C. Marchesan; Gustavo Marchesan; Ghendy Cardoso Jr.

doi:10.20906/sbse.v2i1.2905

Leyla Kräulich Programa de Pós-Graduação em Engenharia Elétrica, UFSM, RS
Lucas K. Centenaro Instituto Federal Catarinense, Campus São Francisco do Sul, SC
Jean P. Rossini Programa de Pós-Graduação em Engenharia Elétrica, UFSM, RS
Adriano C. Marchesan Instituto Federal Farroupilha, Campus Jaguari, RS
Gustavo Marchesan Programa de Pós-Graduação em Engenharia Elétrica, UFSM, RS
Ghendy Cardoso Jr. Programa de Pós-Graduação em Engenharia Elétrica, UFSM, RS

DOI: https://doi.org/10.20906/sbse.v2i1.2905

Keywords: Eletric power distribution, rural electrification, single wire earth return systems, three-phase two wire systems

Abstract

Most rural electrical loads are Single Wire Earth return (SWER), mainly for budgetary reasons. However, many rural consumers do not have their needs fully met due to the SWER limited supply capacity and its and the inability to connect three-phase motors.. The solution planned to benefit these rural properties is through the repowering of the three-phase network. The present work sought to compare distribution network projects from an economic perspective, the Three-Phase Two-Wire System (T2F) and the Conventional Three-Phase System, pointing out the most profitable solution. All structures were selected according to the rules and procedures of rural aerial distribution networks, counted for one kilometer and extended up to twenty kilometers for comparison purposes. It was found that from five kilometers of network extension, the costs with T2F will be more advantageous in relation to the three-phase.