13.8 kV Substation Upgrade, Jim Woodruff Powerhouse
Substation modernization at a hydroelectric powerhouse — SF6 switches, 115 kV circuit switchers, armor-clad turbine feeders and a new underground utility tunnel.
Project Details
- Owner
- U.S. Army Corps of Engineers, Mobile District
- Role
- Prime Contractor
- Contract Value
- $2,701,000.00
- Status
- Completed · awarded FY 1998
- Job #
- 9804
Project Overview
Overstreet provided all labor, materials and equipment to modernize the 13.8 kV substation at the Jim Woodruff Powerhouse.
Scope Highlights
- Replaced existing oil switches with new SF6 switches; replaced disconnect switches
- 115 kV circuit switchers, bussing and ground grid
- New 15 kV armor-clad feeders to the existing turbines
- New concrete foundations and fire walls for power transformers; new ventilation building
- New 100-ft-long, 12-ft-wide × 10-ft-high poured-in-place concrete utility tunnel, 20 ft deep, with sheet piling
- Modified the control switchboard and replaced all control and relay wiring
- Overcurrent relays, cable tray and vacuum circuit breakers for existing switchgear
Legacy project performed by the predecessor firm, Overstreet Electric Co., Inc.
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