The purpose of this project was to replace the existing 115kV delivery point single bay breaker station with a new four bay 115kV breaker station and distribution substation. There is one outgoing transmission circuit and one 115kV circuit that feeds the adjacent distribution substation. The distribution substation was constructed with a single power transformer and eight distribution circuits in a circuit regulation configuration.
Scope of work also included all high-side protective relaying and associated equipment. Construction was coordinated in a way to allow for continued transmission service from the existing 115kV structure until the new structure was commissioned.
When it comes to which type of steel is use, hot-dip galvanized steel is used more in transmission structures and substations. One of the main reasons is because aesthetically, HDG steel “looks” better inside a substation and is maintenance free for years. Often times, these structures are in rural or difficult to access areas. Hot-dip galvanized steel provides long term protection to the steel both inside and out. V&S was committed to twenty four hour turnaround on each load of this project in order to meet the stringent delivery timelines on the site.
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