What we buy
Ranges we buy on this page
Transformer Buyers NC buys used, surplus, failed and obsolete 345 kV class transformers anywhere in North Carolina. This page covers high-voltage bulk transmission equipment, its insulation records, and the work required to remove a large transformer from a substation.
| Phase | kVA | Voltage | Fluid |
|---|---|---|---|
| 1 or 3-phase | 25 - 20,000 kVA | 345 kV Class | Liquid or dry |
| 3-phase | 75 - 10,000 kVA | up to 34.5 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
The 345 kV Class class
The 345 kV class belongs to high-voltage bulk transmission, not ordinary facility distribution. A transformer associated with this class may connect transmission systems through separate windings or an autotransformer arrangement.
The nameplate establishes the actual voltage ratings, winding connections, tertiary rating and insulation levels for that particular unit.
A retired 345 kV transformer needs identification beyond its nominal voltage. Manufacturer drawings distinguish a three-phase tank from a bank of single-phase units and show installed accessories.
Serial numbers, winding ratings and the original equipment designation help keep records matched when several tanks occupy the same substation yard.
Local reality
Where 345 kV Class equipment sits in North Carolina
For equipment identified with North Carolina's 345 kV corridors and their substations, the station name and one-line diagram are essential context. Confirm the actual bus voltage rather than relying on a project label.
A transformer nameplate, station drawing and asset register should agree before removal planning begins at the site.
North Carolina removal work also depends on the route out of the substation. A coastal site may have drainage crossings; a Piedmont yard may have tight public-road turns.
For a 345 kV unit, document the gate opening, internal road surface and nearby energized bays before selecting lifting positions.
Around the site
Insulation, BIL and clearance
Basic impulse insulation level, or BIL, describes withstand capability against a specified impulse test. For the 345 kV class, BIL around 1,050 kV is a useful reference, not a universal nameplate requirement.
Confirm each winding's assigned insulation level from the manufacturer's records and the utility's original project specification.
Insulation and clearance for 345 kV equipment are engineered per project. Bushing geometry, surge protection, elevation and the surrounding bus arrangement affect the installation.
Removal crews need approved isolation boundaries and lifting clearances; the nominal voltage alone cannot establish a safe crane position beside an adjacent energized transmission bay.
Where it sits
Testing at this voltage
A 345 kV transformer assessment starts with existing factory and field reports, not an improvised energized test. Useful records include winding resistance, turns ratio, insulation power factor and bushing capacitance.
Compare results with earlier readings and note tap position, oil temperature and the test connections used for each measurement.
Dissolved gas analysis can help explain why a 345 kV unit was removed, especially after protection operation or an internal fault. Include dated laboratory reports, relay event records and any inspection photographs.
A gas result alone does not establish winding condition or prove that the tank is safe to enter.
On the ground
Transport and handling
Transport planning for a 345 kV transformer begins with the shipping drawing and verified shipping weight. Operating weight includes oil and accessories that may travel separately.
Identify removable bushings, radiator banks, conservator connections and lifting points before choosing a heavy-haul trailer, rail arrangement or crane configuration for the actual load.
The North Carolina route review must account for axle loading, bridge restrictions, overhead obstructions and turns between the station gate and the receiving site. Record the stripped tank dimensions separately from the assembled dimensions.
Shipping braces, blanking plates, gasket condition and the manufacturer's transport instructions belong in the removal plan.
Local reality
What changes the value
For a 345 kV transformer, the practical assessment changes with winding condition, documented failure history and the completeness of the assembly. Missing high-voltage bushings, damaged tap-changing equipment or an opened tank alter the work required.
Clear photographs should show the nameplate, tank seams, radiator connections and any visible oil leakage.
Access and documentation matter alongside the 345 kV core and windings. A unit already isolated on an accessible foundation presents different removal work from one surrounded by live bus.
Oil test records, PCB documentation where applicable, lifting drawings and a complete accessory list reduce uncertainty about handling and disposition requirements.
Around the site
Starting a sale
The starting package for a 345 kV transformer includes legible nameplate photographs, the station location and a statement of ownership or disposal authority. Identify whether the unit is operating, isolated, drained or failed.
Include the removal deadline and specify which bushings, radiators, controls and spare components belong with it.
Transformer Buyers NC reviews 345 kV equipment with the owner or authorized representative before defining pickup responsibilities. The scope should identify who isolates conductors, manages oil, removes accessories and provides lifting access.
Written release documents and an agreed site boundary keep the transformer removal separate from adjacent substation work.
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
Does every 345 kV transformer have identical BIL?
No. BIL around 1,050 kV is a reference for this class, but assigned insulation levels depend on the equipment and project specification. Check the nameplate, factory test report and winding insulation schedule rather than applying one value to every winding or bushing.
Service area
Can a failed 345 kV transformer be considered?
Yes. Transformer Buyers NC buys failed equipment as well as used, surplus and obsolete units. For a failed 345 kV transformer, provide the fault history, relay records, oil reports and photographs of tank damage so handling needs can be assessed before removal.
Payment
Which weight matters for a 345 kV move?
The verified shipping weight matters for the planned transport configuration. A 345 kV transformer's operating weight may include oil, bushings and radiator assemblies removed before shipment. Use the manufacturer's shipping drawing and confirm what remains attached rather than estimating from the assembled unit.
Logistics
Testing at this voltage: what should a seller know?
A 345 kV transformer assessment starts with existing factory and field reports, not an improvised energized test. Useful records include winding resistance, turns ratio, insulation power factor and bushing capacitance.