AoI0012_Transformers and Voltage Regulators_Revised 01.pdf

Area of Interest (AoI) – Pad Mount Transformer & Voltage Regulator Inspection and Repair

Federal Agency: Army

Office: Army Contracting Command – Anniston Army Depot (ACC-ANAD)

AoI Title: Pad Mount Transformer & Voltage Regulator Inspection and Repair

CSO AoI Number: AoI #0012

AoI Release Date: 7 August 2026

Responses: See W911KF-25-S-C002 for procedure details

Questions and Answers:

1. Are the units in service, or removed and staged? The units have been removed and being stored at this time.

Additional questions will not be accepted in relation to this AoI.

1. Overview

• ACC-ANAD is seeking solutions for inspecting and repairing single-phase and three-phase pad-mount transformers and voltage regulators. We need a solution that includes:

o A modern, effective way to inspect the equipment and diagnose its condition.

o A clear recommendation on whether to repair or retire each unit based on your findings.

o A detailed cost estimate for all recommended repairs.

• The resulting contract will include one base year plus four option years.

• Interested parties should review the full CSO posting on SAM.gov for submission and evaluation procedures.

• This CSO AoI seeks innovative commercial solutions that meet the objectives detailed in Section 3.0 below. In accordance with Revolutionary FAR Overhaul (RFO) Defense Federal Acquisition Regulation Supplement (DFARS) 212.70, the term 'innovative' is defined as any technology, process, or method, including research and development, that is new as of the date of proposal submission, or any new application of an existing technology, process, or method as of the proposal date.

• ACC-ANAD is not obligated to extend a request for proposal or make an award as a result of this CSO AoI; all awards are subject to the availability of funds and successful negotiations. This CSO AoI is not an authorization to begin performance, and in no way obligates the Government for any costs incurred by the Offeror associated with developing a Response. Prior to commencement of any activities associated with performance under this CSO AoI, the Government will issue a written directive or contractual document signed by the Contracting Officer with appropriate consideration established. ACC-ANAD reserves the right to modify the requirements of this CSO AoI.

2. General & Administrative Requirements

2.1 Contractor Responsibilities & Qualifications

• The contractor must provide three (3) references from previous jobs demonstrating experience in inspecting and repairing single-phase and three-phase mount transformers and voltage regulators.

• The contractor must provide three (3) supply data sheets and written test procedures from previous, similar jobs.

• The contractor must provide proof of adherence to IEEE C57.12.34 standards for work on three-phase transformers.

2.2 Compliance

• All work shall comply with the latest applicable standards from:

o American National Standards Institute (ANSI) o American Society for Testing and Materials (ASTM) o Institute of Electrical and Electronic Engineers (IEEE) o National Electrical Manufacturers Association (NEMA)

• The contractor shall comply with all applicable city, state, and federal Department of Transportation (DOT) regulations for transporting oil-filled equipment.

• The transformers and voltage regulators are oil-filled, self-cooled, distribution type, single or three-phase, 60 Hertz. Transformer oil shall be verified as Polychlorinated Biphenyl (PCB)-free. ANAD will conduct the PCB test prior to shipment to verify less than 50 ppm content.

3. Scope of Work

3.1 System Types & Listings

• The contractor shall inspect and repair the transformers and voltage regulators listed in the attachment AoI0012_Transformers and Voltage Regulators.

• The list of equipment is subject to change and items be added to it throughout the term of the contract.

3.2 Inspection & Testing Requirements

• Physical Inspection: Assess and document the physical condition, including any signs of rust, leaks, tank deformation, or internal damage.

• Electrical Testing: Perform and report on the following tests:

o Transformer Turns Ratio (TTR) o Megger Insulation Resistance o Excitation, Impedance, Full Load, Watts, No Load Watts, Induced Potential

• Reporting: A comprehensive report must be submitted for each unit inspected.

The report must include:

o The results of the physical inspection and all electrical tests.

o The transformer/voltage regulator’s nameplate information (serial number, kilovolt ampere (kVA), voltage ratings).

o A clear recommendation to either rebuild or retire the unit.

3.3 Repair Requirements

• If repairs are recommended for the units, they shall include, but are not limited to:

o Replacement of all gaskets, damaged gauges, and valves o Replacement of damaged bushings o Sanding and painting to the tank to EEI guidelines o Rewinding high-side and low-side windings o Baking the core and coil o Refilling with new, non-PCF mineral oil o Performing all required testing and providing a test report

• Parts: New parts must be used in the replacements unless authorized to do so.

OEM parts are not required, but replacements must be of equivalent quality.

• Warranty: The contractor shall provide a written warranty of no less than three (3) years for materials and workmanship.

3.4 Painting, Oil and Fusing Requirements

• All transformers shall be painted olive green, and a certification of compliance shall be provided. The kVA rating shall be painted on the front in three (3) inch letters.

• Oil shall be new (not reprocessed), meet the ANSI/ASTM D3487 standards, and be PCB-free (must pass the ANSI D 877 dielectric testing).

• Bayonet-type fuse must be included with a label stating, “Vent transformer prior to removing fuse”. The fuse shall be an oil-immersed draw-out expulsion fuse.

4. Remediation and Constraints

• Hidden Defects and Additional Damage: If additional damage is discovered that was not included in the original estimate, the contractor must obtain approval before proceeding with the additional repairs.

• Shipping: The contractor must define any limitations or minimum quantity requirements for shipping and specify any weight limitations for larger kVA units.

ANAD will assist with loading and unloading at the depot.

5. AoI Constraints

• Offerors must be registered on SAM.gov.

6. Submission Instructions

• A written solution must be submitted via email to the Contracting Officer and Contract Specialist listed below by 4:00 PM CDT Friday, 28 August 2026 with the subject line:

o SOLUTION for AoI 0012 Pad Mount Transformer & Voltage Regulator Inspection and Repair

• Late submissions will not be evaluated.

• All AoI questions must be submitted by 10:00 AM CDT, 13 August 2026 with the subject line:

o QUESTIONS for AoI 0012 Pad Mount Transformer & Voltage

Regulator Inspection and Repair

• Late questions will not be answered.

• AoI Close Date: 4:00 PM CDT, 28 August 2026

7. Points of Contact

• AoI questions can be sent to:

• Contracting Officer: heather.n.glover2.civ@army.mil

• Contract Specialist: katherine.b.fuller2.civ@army.mil