Ripon Switchyard & Stockton Substation

CLIENT: Modesto Irrigation District
LOCATION: Ripon, CA

RIPON SWITCHYARD                                IEC designed a new 69kV switchyard in Ripon, California, which included all electrical, civil/structural, and protection and control engineering services. This substation was built to export the power produced by the new power plant via two new 69kV transmission lines routed to the existing Stockton Substation. IEC coordinated with the power plant design engineer for all protection and control design interface. The design package included all plot plans, foundation details, grounding, steel structural design, conduit plans, single-lines, three-lines, panel layouts, panel wiring diagrams, low voltage and DC distribution, protection, and control schematics. IEC also prepared purchasing specifications for some of the major equipment and was responsible to review vendor bids, make a recommendation and approve vendor drawings. IEC estimated material, labor, and equipment costs for the entire substation project and provided construction inspection services while the substation was being built.

STOCKTON SUBSTATION

IEC upgraded an existing 69 kV Stockton Substation to accommodate two new 69kV transmission lines. IEC was responsible for the electrical, civil, and structural design for the upgrade. This expansion included two new 69 kV SF-6 breakers, disconnect switches, bus structure, structural steel, protective relays, and interfacing with all of the existing substation equipment (i.e., bus differential relays, SCADA, oscillograph, metering, etc.).  IEC prepared all plot plans, foundation details, grounding, structural steel design, conduit plans, single-lines, three-lines, panel layouts, panel wiring diagrams, low voltage and DC distribution, protection, and control schematics. IEC also prepared purchasing specifications for all equipment and was responsible for reviewing vendor bids, making a recommendation, and approving vendor drawings.