Southwest Starkville 69/13 kV Substation

Atwell & Gent is providing full planning, design, procurement, and construction administration services required for owner to completely replace existing electromechanical protective relays with new digital protective relays. Our firm was responsible for the procurement of major equipment (relay panels, relays, cables, etc.), review of vendor submittals and drawings, and incorporation of final vendor drawings into the final construction package. Atwell & Gent was responsible for the construction administration of the project, including project coordination and scheduling, field inspections, and substation acceptance testing.

Project Details:

• Replacement of all electromechanical overcurrent, backup overcurrent, transformer differential and bus differential relaying with new digital relays.
• Required extensive programming, logic, testing, and commissioning to ensure proper operation under a variety of system conditions. 
• Design services included power and control raceways, electrical and controls physical layout and connections (single-line, three-line, schematic wiring, and point-to-point wiring drawings), relay panel drawings, elementary, current and potentials drawings.