MAFB Transformers

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The Department of the Air Force is issuing a Sources Sought notice for potential vendors to supply ten high-voltage, pad-mounted, exterior distribution transformers for Malmstrom Air Force Base (MAFB) in Great Falls, Montana. This is not a solicitation but a market research effort to identify qualified sources, including small businesses (8(a), Service-Disabled Veteran-Owned, Hubzone, and Women-owned), under NAICS code 335311. The required transformers must be three-phase, with a primary voltage of 12470/7200 AC (Delta configuration), copper winding, and various secondary voltages, adhering to MAFB specifications (with paint color as the only modifiable item). Vendors must demonstrate expertise in supplying such transformers and be prepared for strict base and missile field access procedures, including submitting detailed personnel information for security clearance. Interested parties should submit a Contractor Capability Survey and a summary outline of qualifications by August 14, 2025.

The Malmstrom AFB, MT Transformer Specifications document outlines detailed requirements for brand new, not refurbished, 3-phase pad-mounted transformers. Key specifications include a 65-degree temperature rise, KNAN cooling, 60 Hz frequency, Envirotemp FR3 insulating fluid, and design for 1000m elevation. Transformers must use copper conductors, meet DOE 2010 efficiency standards, and NEMA TRI sound levels. Primary components require a 12470D/7200 voltage, 95 kV BIL, 15 kV class, dead front, loop feed configuration with specific taps, 200 amp bushing wells, and Cooper load-break inserts. Overcurrent protection includes Prywell CLE Fuses and copper bayonet fuse holders. Secondary specifications detail 208Y/120 voltage, copper windings, 30 kV BIL, 1.2 kV class, live front, radial feed, and integral copper 6-hole spade bushings. The cabinet must be 20 inches deep with penta-head bolts, meet ANSI K-Dimension Figure 2, and have FED Spec 37056 paint. Required notifications include Danger High Voltage decals. Gauges and fittings include liquid level, thermometer, pressure/vacuum, pressure relief, drain valve, and Schrader valve. Tank accessories specify IEEE ground pads and a nitrogen blanket. Packaging is on a pallet with a bolted cover and a standard 1-year warranty. An attachment lists various kVA sizes with corresponding primary/secondary voltages, recommended spares, and facilities backed up.

This document is a combined synopsis/solicitation (RFQ FA4626-25-Q-0058) from Malmstrom AFB, MT, for the purchase of ten three-phase, high-voltage, pad-mounted, exterior distribution transformers. This procurement is a total small business set-aside under NAICS code 335311. Quotes are due by 3:00 PM MST on September 10, 2025, and questions must be submitted by 1:00 PM MST on September 3, 2025, to Ms. Edsa Artates and Mr. Erik Hallberg. Award will be made to the lowest-priced, technically acceptable offer. Funds are not currently available, and the government reserves the right to cancel the solicitation. The document also includes extensive FAR and DFARS clauses, particularly for electronic invoicing via WAWF and item unique identification. Offerors must be registered in SAM and are encouraged to keep prices valid for 60 days.

The document addresses questions and answers regarding transformer requirements for Malmstrom Air Force Base. Key issues include the difficulty of meeting a 90-day delivery timeframe for transformers, with the government committing to investigate and address this during the award process. The shipping address for the U.S. Air Force at Malmstrom AFB is provided. Crucially, the document clarifies that only oil-filled transformers are acceptable, explicitly rejecting dry-type transformers. It also specifies the primary voltage requirement as 12470 DELTA, distinguishing it from a wye connection. For further details, a Transformer Specification Sheet is referenced.