Fortune 500 Power Company
69kV Transmission Bus Upgrades
Salas O’Brien’s engineering design expertise helped this major power generation, transmission, and distribution client meet compliance standards and achieve their ambitious goals for this 69kV transmission bus upgrade.
This Fortune 500 Power Company provides power generation, transmission, and distribution for more than five million customers across the nation. Their aim is to support businesses, commerce, and communities through reliable service and solutions.
In this project, one of this client’s existing 69kV “box bay” designs was rebuilt with all new equipment, including rigid bus, circuit breakers, disconnect switches, instrument transformers, and lightning protection. The new design presented several challenges—the change from a lattice steel design necessitated special design consideration to ensure the end results met National Electrical Safety Code (NESC) standards. In the process of running clash detection in the design’s 3D model, it was discovered that the client’s standard replacement duplex switches did not meet minimum compliance clearances.
To alleviate the client’s challenge, Salas O’Brien modeled a redesign for switches in the box bay. Our design gave a viable range for redesign that would meet the client’s needs and ensure that bus, equipment, and jumpers all met clearance requirements.
Thanks to our work on this project, the client was able to achieve their goals and comply with all NESC standards. The 3D model created for this project empowered the client and was leveraged as a reference point for future similar projects.