Bandera Substation

This project consisted of an upgrade to the Bandera Substation for reliability and load support, as mandated by the Texas PUC as part of CREZ (Competitive Renewable Energy Zone) projects. For the project, a new 138/69 kV autotransformer was installed and the existing substation was reconfigured and re-built so that the new autotransformer could be operated in true parallel the previously installed. Due to space constraints at the site, the design required a small footprint, so a breaker and a half scheme was used on the low-side of the autotransformers to serve the existing 69kV loads.  To accomplish the 11 month project schedule demand, a surplus auto transformer was procured for the project. M&S Engineering also supervised and provided QA/QC for the electrical, relaying, civil and structural engineering activities for this project. Our teams developed equipment specifications and provided the electrical analysis, coordination studies and physical design for the new substation. M&S also provided technical support during procurement and responded to RFI’s from the owner, vendors and subcontractors during the project.

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