Seward Junction 138kV Substation

Due to increasing loads and reliability concerns in the areas just north of Austin, Texas,  Pedernales Electric Cooperative (PEC) established a this new 138kV ring bus type switching station including.  As part of our ongoing relationship with PEC M&S Engineering provided the engineering, design and construction administration for the project.  The new substation’s ultimate build out was to be a four breaker, ring bus using two 138/25kV power transformers, ten (10) 25kV breakers and one (1) tie breaker so that loads could be transferred with out an outage.  M&S provided all design efforts for the physical, structural and electrical portions of the station.  Our scope of work included electrical engineering, protection & control, relaying, equipment specifications, civil & site preparation, grounding, structural design and modifications to existing 138kV transmission line.  M&S also provided bid documentation and assisted the cooperative’s procurement team with the solicitation and selection of contractors, equipment and materials.

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