Updated 4Jun26_Transformer Specs.docx
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- Attached to
- FY26 750kVA 3-Phase Transformer
- Solicitation number
- FA440726Q1000
About this file
This file contains updated transformer specifications for a federal procurement solicitation. The Department of the Air Force Air Mobility Command (Air Mobility Command) is seeking quotes for a single 750 kVA 3-phase pad-mount transformer with copper windings, to be procured as a Small-Business Set-Aside using FAR Part 12 procedures. The solicitation (FA440726Q1000) is classified under NAICS Code 335311 (Power, Distribution, and Specialty Transformer Manufacturing) and PSC Code 6120 (Transformers: Distribution and Power Station), with evaluation based on Lowest Price Technically Acceptable (LPTA) criteria and a single award anticipated.
The transformer specifications require Envirotemp FR3 insulating fluid, DOE 2016 efficiency standard, high voltage of 12470GY/7200 volts at 15 kV class with 95 kV BIL, dead-front primary with loop feed, and a 5-position tap changer with 2.5% taps above and below nominal. Additional requirements include 200-amp Cooper bushing wells with removable studs (quantity 6), 15-38 kV 300A 2-position loadbreak switches (quantity 3), Varistar elbow arresters at 15 kV (quantity 3), and overcurrent protection using bayonet and partial-range current-limiting fuses. Low voltage is specified at 480Y/277 volts, 1.2 kV class with 30 kV BIL, and live-front secondary with radial feed. Offerors must have active SAM registration and submit quotes by 10:00 A.M. CST on June 5, 2026. The file notation "Updated 4Jun26" indicates recent specification revisions.
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Text version
750 kVA pad mount transformer Bldg. 470 4June26 – Updated to include: Copper Windings Required kVA - 750 kVA 3 Phase Pad-Mount Transformer Insulating fluid - Envirotemp FR3 Efficiency Standard - DOE 2016 High Voltage - 12470GY/7200 Volts High Voltage kV Class - 15 kV Class High Voltage kV BIL - 95 kV BIL Primary Termination Style - Dead Front Primary Feed Type - Loop Feed Taps - 2 - 2.5% taps above and 2 - 2.5% taps below nominal Tap Changer - 5-position tap changer Tap Changer Switch Location - Frontplate HV Compartment High Voltage Bushings - 200 amp Cooper bushing wells with removable studs (Quantity: 6) Primary Ground Bushing Selection - Combined H0X0 Bushing High Voltage Inserts - 15 kV, 95 kV BIL load-break inserts (Quantity: 6) Loadbreak Switch(es) - 15-38 kV, 300A 2-Position (Quantity: 3) Loadbreak Switch Location - Frontplate HV Compartment High Voltage Arresters - Varistar elbow arresters, 15 kV class, distribution class 15 kV (Quantity: 3) Overcurrent Protection Bayonet Fuses in series with Partial-Range Current-Limiting Fuses (Quantity: 3) Expulsion fuses Bayonet fuses - (Quantity: 3) Bayonet Holder - Copper Bayonet Fuse Holder (Quantity: 3) Low Voltage - 480Y/277 Volts Low Voltage kV Class - 1.2 kV Class Low Voltage kV BIL - 30 kV BIL Secondary Termination Style - Live Front Secondary Feed Type - Radial Feed Low Voltage Bushing Location - LV Frontplate (seg 1) Low Voltage Bushings - Integral aluminum 12-hole spade bushing(s) (Quantity: 4) Bushing Supports - Standard LV Bushing Support Assembly Cabinet hardware - Penta-head cabinet door bolts Cabinet Types - IEEE/ANSI Infrared Viewing Windows - No Window Required Bushing Layout - K 4.5 Loop feed per IEEE C57.12.34-2022 Figure 11 minimum dimensions (without bails) Special Paint - Federal Spec Number Sherwin Williams 6006, Black Bean Brown Cabinet Sill Construction - 304L Stainless steel cabinet sill Cabinet Sides Construction - 304L Stainless steel cabinet sides Tank Base Construction - 304L Stainless steel tank base FM / UL Certifications - UL Listed Liquid Level Gauge - Magnetic liquid level gauge Pressure Vacuum Gauges - Pressure/vacuum gauge Thermometer - Thermometer, dial-type Other Fittings - Schrader valve Drain Valve - Drain valve with sampler in LV Compartment (1") Fill Valve - Fill plug in LV Compartment Pressure Relief Device - Pressure relief device, 50 SCFM Ground Pads - Two-hole ground pads (Quantity: 3) Nitrogen Blanket - Yes Cover Bolted cover Gauges Location Inside Main Cabinet on Front Plate
File details come from the government source that posted it. Updated .