North Haven 161/13 kV Substation

Atwell & Gent provided full planning, design, procurement, and construction administration services required to construct a new substation for North Haven, Mississippi. Design services for this project included foundations, power and control raceways, station grounding, station house, physical layout (section and elevation drawings) and electrical and controls physical layout and connections (single line, three line, schematic wiring, and point-to-point wiring drawings). Our firm was responsible for procurement of all major equipment (circuit breakers, power transformers, relaying and control systems), review of vendor submittals and drawings as well as the incorporation of the competed vendor drawings into the final construction package. Atwell & Gent was responsible for construction administration of the project, including project coordination and scheduling, field inspections, and substation acceptance testing.

Project Details:

• Construction of a new $1.4 million 50 MVA, 161/13 kV substation, 2.1 miles of 161 kV overhead transmission line to serve the station and associated overhead 13 kV feeder circuits required in the North Haven area.
• Work consisted of a 161 kV bus, 161 kV line position, 161 kV circuit breaker, two 15/20/25 MVA power transformers, a 15 kV bus and four 15 kV line positions and circuit breakers.
• Design and construction of associated fencing, concrete pier, and pad foundations, station grounding, steel supports, bus work, isolation and bypass switches, and station house.
• Incorporated relaying, control and supervisory control and automation (SCADA) systems.