What we buy
Ranges we buy on this page
Transformer Buyers NC buys used, surplus, failed, and obsolete 3,750 kVA transformers anywhere in North Carolina. This page covers substation equipment from paper mills, refineries, and generating station auxiliary systems, including identification, inspection, and removal planning.
Plant engineers, utility asset managers, demolition crews, and facility directors can use it to prepare nameplate records, oil reports, and access details before a heavy unit leaves its foundation.
| Phase | kVA | Voltage | Fluid |
|---|---|---|---|
| 1 or 3-phase | 3,750 kVA | up to 34.5 kV | Liquid or dry |
| 3-phase | 50 - 20,000 kVA | 46 kV | Liquid or dry |
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
The 3,750 kVA class
A 3,750 kVA nameplate describes apparent power capacity, not the transformer's weight or its voltage ratio. On a substation unit, record every listed cooling rating.
An ONAN base rating and an ONAF fan-cooled rating can describe different capacities on the same tank and winding assembly.
For a retired North Carolina mill unit, photograph the complete nameplate rather than reporting only 3,750 kVA. Manufacturer, serial number, impedance, frequency, temperature rise, and winding connection help identify the equipment.
Include separate plates on the tap changer or auxiliary cabinet if those assemblies remain attached.
Local reality
Typical North Carolina applications
At a paper mill, a 3,750 kVA substation transformer may serve a process distribution bus feeding motor control centers and large drives.
Removal planning must account for adjacent energized equipment, overhead pipe racks, and the concrete containment wall around the transformer pad before rigging begins.
Refinery service and generating station auxiliary service introduce different records to the review. A refinery unit may have site-specific electrical classification requirements, while a station auxiliary transformer may have protection and switching records tied to plant shutdown procedures.
Neither application establishes the voltage ratio without the nameplate.
Around the site
Shipping weight and footprint
Shipping weight for this 3,750 kVA class is roughly 24,000 to 38,000 pounds. Treat that range as a planning reference, not a certified lift weight.
Confirm whether the manufacturer's figure includes insulating oil, radiators, bushings, fans, and any enclosure or cable termination cabinet attached to the tank.
Measure the tank, radiator projection, bushing height, and skid width at the North Carolina site. A narrow gate can prevent removal even when the trailer fits the yard.
Mark removable accessories separately, and distinguish overall operating dimensions from the dimensions expected after approved preparation for transport.
Where it sits
Rigging and load-out
Handling plans for a 3,750 kVA unit should account for a 90-ton crane and a multi-axle trailer. Crane capacity alone does not approve the lift.
The rigging contractor must verify actual weight, working radius, boom configuration, ground bearing conditions, and the manufacturer's designated tank lifting points.
Before load-out, qualified personnel must isolate the 3,750 kVA transformer, verify absence of voltage, and apply grounding under the site's procedures. Coordinate cable disconnection, oil containment, and radiator clearance.
A spreader bar may be needed to keep slings clear of bushings and prevent side loading.
On the ground
Primary and secondary voltages
A 3,750 kVA transformer might carry a 13.8 kV primary and a 4.16 kV secondary, but its rating does not establish those voltages. Read the plate and terminal markings.
Record whether each winding is delta or wye and whether an accessible neutral bushing is present.
Tap positions matter when reviewing a North Carolina substation unit removed from service. Send the listed tap range and the last documented position, along with any load tap changer information.
Bushing voltage class, insulation level, and termination arrangement help distinguish equipment that otherwise shares the 3,750 kVA rating.
Local reality
Inspection and oil test
Inspect a 3,750 kVA tank for oil tracks below radiator flanges, cracked porcelain, displaced gaskets, and corrosion at the lower seam. Photograph the pressure relief device and gauge faces.
On failed equipment, preserve relay targets and trip records before controls are disconnected or the cabinet is stripped.
Oil records for a retired North Carolina unit should identify the sampling date, laboratory, serial number, and PCB result where documented. Dissolved gas analysis, moisture, and dielectric breakdown results help explain condition.
A clean exterior does not rule out winding damage after a through-fault or internal arc.
Around the site
Valuation for this size
Evaluation of a 3,750 kVA transformer begins with identity, condition, and completeness. A readable nameplate, intact copper or aluminum windings, attached radiators, and documented oil condition provide different information than an empty tank.
State clearly whether the core and coils remain inside, especially after salvage work.
For equipment weighing roughly 24,000 to 38,000 pounds, removal conditions are part of the review. Provide pad photographs, gate dimensions, crane setup space, and the distance to the trailer position.
Transformer Buyers NC buys these units across North Carolina, including failed equipment with documented damage.
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 you buy a failed 3,750 kVA transformer?
Yes. Transformer Buyers NC buys failed 3,750 kVA units in North Carolina. Describe the failure, identify any removed components, and provide nameplate photographs. Trip records, oil reports, and photographs of tank deformation or damaged bushings help establish the condition before removal planning.
Service area
Is a 90-ton crane always sufficient for removal?
Not automatically. A 90-ton crane is a handling reference for this class, not a lift approval. A 24,000- to 38,000-pound unit still requires a verified weight and a lift plan covering working radius, ground conditions, rigging weight, and obstructions around the pad.
Payment
What records should accompany a retired mill unit?
For a 3,750 kVA paper mill transformer, gather the nameplate, one-line diagram, maintenance history, oil laboratory reports, and any failure report. Include photographs of the bushings, radiators, and terminal cabinets, plus site dimensions showing how a multi-axle trailer can reach the loading position.
Logistics
Primary and secondary voltages: what should a seller know?
A 3,750 kVA transformer might carry a 13.8 kV primary and a 4.16 kV secondary, but its rating does not establish those voltages. Read the plate and terminal markings.