Electric Utility

Three Breaker 115kV Switching Station Designed for Three 115kV Breakers Plus a 12/16/20 MVA Substation

The client wanted the Switching Station to be designed as a three breaker ring bus cutting into an existing 115kV line. However, initially only one breaker was installed along with the 12/16/20 MVA, 115kV/13.8kV Substation transformer with the associated five feeder, vertical bus main and transfer low side. All of the high side was configured for the ultimate three breaker ring bus, including the one breaker, disconnect switches, and bus work. The remainder of the ring can easily be constructed without an extended outage of the substation. Since the sub feeds the nearby town and hospital, it was designed to minimize outages during future buildout.