Copco #2 115/69 kV Substation
PacifiCorp contracted DEA to scope and design the rebuild of an existing 115 kV/69 kV yard from a radial bus configuration to an initial ring-bus configuration with an ultimate break-and-a-half configuration.
The project, located in Siskiyou County, Calif., included the addition of one 115 kV/69 kV autotransformer, two GSU transformers, metalclad switchgear, and a control house. In addition, an onsite fuel station, two metal storage units, and a wood barn had to be relocated.
The design also required modifying the yard and access road for the potential use of a mobile transformer if needed.
DEA served as engineering design consultant by providing project scoping support, physical design, one and three lines, schematics, wiring diagrams, foundation design, structural design, and site grading services.