Battery Chargers and Inverter_- BNJ Determination- signed_Redacted.pdf

This is a Brand Name Determination document for a federal contract opportunity issued by the Portland District, U.S. Army Corps of Engineers, Contracting Division. The solicitation seeks approval for a brand-name, fixed-price contract to procure LTI Power Systems rectifiers, battery chargers, and UPS/inverter equipment for Bonneville Lock and Dam. The specific items include two LTI Power Systems Industrial 120VDC Rectifiers (Model LT3048HC), two conformational coatings for the 120VDC rectifiers, one LTI ProUPS Industrial 15kVA UPS (Model LT154848HD), one external manual bypass switch for the 15kVA UPS, and one conformational coating for the 15kVA UPS.

The contracting officer justifies the brand-name specification under RFO 12.102, which allows single-source acquisitions at or below the simplified acquisition threshold without allowing equal products. The justification emphasizes that LTI Power Systems equipment is necessary to replace failing equipment and maintain operational integrity of critical control, protection, and auxiliary loads at the facility. The equipment must provide reliable 125/120 VDC power and conditioned 480/277 VAC, 3-phase power while integrating with existing DC battery systems and AC distribution. Key requirements include specific electrical compatibility (125 VDC, 60-cell, 250A output for rectifiers; 120 VDC, 60-cell input with 480/277 VAC 3-phase output for the UPS), maintenance features such as conformational coating for corrosion protection in the hydropower environment, and standardization with previously procured LTI Power Systems equipment from SupplyCore (two prior purchases documented at $92,044.98 and $55,165.64).