Attachment A -Salient Characteristics Maddox 500kVA Transformer .pdf

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Attached to
Maddox 500KvA 3-Phase Pad Mount Transformer
Solicitation number
47QSSC-25-Q-0203
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Attachment A details the salient characteristics for a Maddox 500KvA 3-Phase Pad Mount Transformer under GSA Federal Acquisition Service Request for Quote (RFQ) Solicitation 47QSSC-25-Q-0203. The document specifies a high-priority procurement for one transformer with precise technical requirements, including 12470 Delta high voltage, 208Y/120 low voltage, mineral oil fluid, 60 Hz frequency, and a 3-year warranty. Key technical specifications include 15kV bushings, copper conductors, stainless steel cabinet tank, ONAN cooling class, and specific accessories like a dial-type thermometer, liquid level gauge, and pressure relief valve.

The solicitation requires delivery within 2 weeks of order receipt, with a closing date of July 24, 2025 at 10 am EST. The procurement follows FAR Parts 12 and 13 guidelines for a one-time purchase order of a brand-name Maddox transformer or equivalent, with offerors required to complete Attachment B representations and certifications as part of their quote submission.

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Attachment A - Salient Characteristics for Maddox 500KvA 3-Phase Pad Mount Transformer

A quantity of one (1 ea) Maddox, brand name, or equal 500KvA 3-Phase Pad Mount Transformer is required under RFQ Solicitation 47QSSC-25-Q-0203. FOB Delivery is required within 2 weeks. The minimum requirements/characteristics that must be included with the quoted transformer are as follows:

● High Voltage: 12470 Delta, 95 kV BIL

● Low Voltage: 208 Y/ 120, 30 kV BIL

● Taps: 2 Above, 2 Below @ 2.5%

● HV Bushings: (3) 15kV 200A Wells & Inserts (dead front radial feed)

● LV Bushings: (4) 4-Hole Spades

● Fluid: Mineral Oil

● Frequency: 60 Hz

● Temperature Rise: 65C

● Cooling Class: ONAN

● Conductor: Cu / Cu

● Fusing: Bayonet w/ Iso Links

● Switch: 2 Pos. LBOR

● Tank Material: Stainless Cabinet Tank & Radiators

● Arresters: (3) 15 kV, 12.7 kV MCOV Arresters

● Cabinet Depth: Standard

● Features & Accessories

● Drain & Sample Valve

● Dial-Type Thermometer

● Liquid Level Gauge

● Pressure Vacuum Gauge

● Schrader Valve

● Pressure Relief Valve

● Pad mount Green Paint

● UL Listed

● Warranty: 3 years

File details come from the government source that posted it. Updated .