Dominguito Transformer Overload

Abstract

Assessments were made in Arecibo, Puerto Rico, between 2021 and 2023 to determine the root cause for loading issues that were occurring in this area. From this investigation, it was found that Dominguito substation has an overload on the 8010-distribution transformer. This type of transformer is no longer produced on the market. The purpose of this project is to eliminate the overload on the Dominguito 8010 transformer. Three alternatives were identified to evaluate the overall situation on Dominguito substation. It was analyzed and discussed with the departments of Engineering, Operations, Asset Management and Project Management. The plan was to replace three transmission poles and enable the Arecibo Rural substation 8003. Key Terms ⎯ Overload, Substation, Transformer, Underground.