Rediseño de una subestación de 69kv/13.8kv para suplir la demanda proyectada de una industria de balanceados en el cantón Durán.

Abstract

The substation of the feed industry located in the Duran canton, due to its significant growth in the shrimp production and export sector, has considerably increased its maximum demand, almost exceeding the permitted capacity. In such a situation, this project seeks . Justify the expansion of the system, so an information survey was carried out to know the current demand and needs of the industry. The analysis revealed that the electrical substation urgently needs an increase in capacity, because the power transformer currently operates at 83% of its capacity, which makes its repowering necessary. In the design stage, it is planned that the new power transformer will have a capacity of 8/10 MVA, operating at a voltage level of 69 kV/13.8 kV. With the change in capacity, the currents are higher, so a new current transformer was created with a ratio of 100/60/25:5 and for medium voltage with a ratio of 600:150:5. Finally, an estimated budget of $181,550.00 was presented with an execution time of 240 days. Additionally, a budget of $27,450.00 was projected for maintenance, commensurate with the new capacity.