What we buy
Ranges we buy on this page
Network transformers serve dense urban distribution where several supplies feed a common secondary network. This page covers submersible units designed for spot-network service, including equipment removed from downtown Charlotte, Raleigh and Wilmington vaults.
Transformer Buyers NC buys used, surplus, failed and obsolete network transformers, with attention to protector condition, fluid records and the sidewalk-vault extraction plan.
| Phase | kVA | Voltage | Fluid |
|---|---|---|---|
| 3-phase | 500 - 2,500 kVA | 15 kV | Liquid-filled |
Who we buy from
Six kinds of seller
- Recyclers
- Electrical contractors
- Equipment dealers
- End users
- Demo contractors
- Distributors
Fast offers
A written offer the same business day, based on your photographs.
Dedicated logistics
Our own crew, trailer and crane, not a brokered haul.
No broker fees
One buyer from first call to cleared pad, with nothing skimmed.
How it works
Six steps from photograph to payment
- 01
Take pictures
Photograph the nameplate, the inside of the cabinet and the tank from both ends. Four frames on a phone are enough to price most units.
- 02
Send them to us
Email or text the photographs with the site address and whether the unit is still energised. We reply the same business day with questions or a number.
- 03
Review the offer
The offer names the unit, the site, the price and the pickup window. It is written, dated and good for thirty days unless the unit changes hands.
- 04
We schedule freight
A crew, a trailer and a crane if the pad needs one. You get the date and the arrival window, and the site does not have to close for it.
- 05
Testing on arrival
Winding resistance, insulation resistance and a turns ratio check, plus oil analysis where the unit is liquid-filled. Results travel with the unit.
- 06
Get paid
Payment is released against the signed bill of sale and the scale ticket, by check or ACH, with the paperwork copy left on site.
What we handle
The parts sellers dread
Rigging
Crane, skates and a route survey for anything that will not roll onto a trailer.
Oil containment
Pans, absorbent and a spill plan before a drain plug is touched.
Bill of sale
A document that clears a lien, a lease or a bankruptcy file, not a handwritten note.
PCB paperwork
Testing and manifesting for pre-1979 oil, handled before the unit moves.
On the ground
Network Transformers explained
A network transformer in this service is a submersible unit designed for spot-network service in dense urban distribution. Its secondary connects through a network protector rather than functioning as an isolated building supply.
That protector disconnects the transformer when reverse power indicates a fault or loss of its primary source.
The tank, terminal compartments and fittings must match the stated submersible rating. A sealed tank alone does not establish that rating.
Nameplate photographs, outline drawings and manufacturer documentation help identify the assembly, including its protector interface, cooling arrangement and any terminal compartment that was changed during years of vault service.
Local reality
The North Carolina install base
Downtown Charlotte, Raleigh and Wilmington vaults are settings where this equipment appears in North Carolina. Network transformers can sit beneath sidewalks, with ventilation grates and access covers above them.
The building address may identify the load served, but the vault location and utility asset number identify the actual removal point.
A downtown redevelopment can leave a retired network unit below an active pedestrian route long after its electrical service has changed.
Before evaluating that unit, establish who owns the transformer, who controls the sidewalk access and whether adjacent network equipment must remain energized while contractors work inside the same vault.
Around the site
The inspection that decides value
Inspection starts with the vault's watertightness, the network protector and the transformer's submersible rating. Water marks on the walls, failed sump equipment and corroded access frames explain exposure conditions.
Those observations belong beside tank photographs; a dry vault on inspection day does not establish that the unit has stayed dry.
The protector needs its own identification and condition record. Record its manufacturer, rating, mechanism condition and signs of water entry at the enclosure or transformer connection.
Burned contacts, damaged control wiring and missing covers change the assessment of the assembly, even when the transformer tank shows no obvious external damage.
Where it sits
Fluid condition and PCB status
For a liquid-filled network transformer, obtain the fluid type, sampling date and available laboratory reports before planning removal. Moisture and dielectric test results help explain insulation condition after vault flooding or seal failure.
A sample should be traceable to the unit's serial number, not merely to a downtown building address.
PCB status requires documentation, not an assumption based on age or a replacement gasket. Review analytical results, labels and maintenance records for the specific tank.
If the record is incomplete, establish the necessary sampling and handling requirements before disconnecting fittings, draining fluid or moving the transformer through the sidewalk opening.
On the ground
Getting it off the pad
Getting a network transformer off its vault pad is often a street-closure project. Units live beneath sidewalks, and the access opening may be smaller than the complete transformer-and-protector assembly.
Measure the hatch, vault clearances and lifting path before choosing a crane position or deciding whether components must be separated first.
The extraction plan must account for traffic control, pedestrian barriers, underground structures and crane outrigger loads near the vault roof. Confirm lifting points against the manufacturer's drawing and use the documented handling weight.
A lowboy waiting at the curb does not solve a restricted hatch or an unsuitable sidewalk setup.
Local reality
What a buyer weighs up
A buyer reviews the transformer's kVA rating, primary and secondary voltages, impedance and connection details together with the network protector interface. Spot-network equipment needs to be identified as an assembly, not just a tank.
Missing nameplates or undocumented terminal modifications can prevent a clear determination of what is being offered.
Failure history matters as much as exterior condition. Distinguish a transformer retired during a downtown service conversion from one removed after an internal fault, repeated flooding or protector malfunction.
Include test reports, fluid records and photographs of bushings, tank seams and radiator surfaces so the assessment reflects the actual unit.
Around the site
The next step for a network
Start with a record package that ties the serial number to the vault address and the owner's release authorization. Add readable nameplate images, protector photographs, fluid documentation and an outline drawing if one exists.
State whether the network transformer remains connected, has been isolated or is already outside the vault.
Transformer Buyers NC buys network transformers anywhere in North Carolina, including failed and obsolete units awaiting a planned vault extraction. Describe the sidewalk opening, street-closure requirements and contractor responsibilities with the equipment records.
Those details let the purchase review and pickup planning address the same transformer, location and removal scope.
Get started
Get an offer in minutes
Five fields is all it takes. Photographs help, but a nameplate and a town are enough to start.
No fee, no obligation. We reply the same business day.
Tell us what you have
We reply the same business day.
Questions
Straight answers
Equipment types
Can a flooded network transformer still be evaluated?
Yes. Document the flood exposure, tank condition, protector damage and available fluid tests. Photographs of water marks and terminal compartments help distinguish external immersion from possible internal contamination. Do not energize or open the unit simply to support a purchase assessment.
Service area
Does the network protector need separate documentation?
Yes. Provide the protector nameplate, connection photographs and maintenance or failure records separately from the transformer nameplate. The protector has its own switching mechanism and controls. Its condition and compatibility with the transformer interface cannot be established from tank photographs alone.
Payment
Who plans removal from a downtown sidewalk vault?
The owner, utility and qualified removal contractors must establish electrical isolation, access permissions and the extraction method. Responsibilities should be documented before pickup planning. For a Charlotte, Raleigh or Wilmington sidewalk vault, include any required street closure, crane setup and pedestrian protection arrangements.
Logistics
Getting it off the pad: what should a seller know?
Getting a network transformer off its vault pad is often a street-closure project. Units live beneath sidewalks, and the access opening may be smaller than the complete transformer-and-protector assembly.