A familiar logo is useful, but it is not the whole story. We buy transformers with current manufacturer labels, discontinued trade names and plates from companies that changed ownership decades ago. The transformer brands we buy are not limited to the names shown in the brand cards.
We pay attention to what the equipment actually is: its rating, voltage configuration, construction and condition. A complete plate on an older transformer can tell us more than a recognizable logo on an unidentified unit. Our transformer equipment overview covers the different configurations we buy.
01Every major and legacy brand belongs in the conversation
We buy all brands, including ABB, Hitachi Energy, Eaton, Cooper, GE, Prolec GE, Siemens, Schneider Electric, Square D, Howard, Waukesha, Westinghouse, McGraw-Edison and RTE. These names describe equipment, not an exclusive buying list. An unfamiliar manufacturer or older regional label is still worth sending.
Our scope includes pad-mount, pole-mount, substation, unit substation, power, dry-type, cast resin and oil-filled equipment, including solar and wind units. We buy used, surplus, new-surplus and decommissioned transformers; failed units are reviewed case by case. See our capacity and size guide for the rating range.
02Brand matters, but electrical fit matters more
A brand name does not make incompatible equipment interchangeable. Two 1,000 kVA transformers may serve very different applications if their primary voltages, secondary connections, impedance or cooling arrangements differ. We read the rating and connection data before drawing conclusions from the manufacturer.
For example, a 12470GrdY/7200 primary and 480Y/277 secondary identify details that a logo cannot. We also pay attention to taps, frequency, phase count and whether a power transformer lists ONAN and ONAF ratings. Condition, complete accessories and usable documentation help explain the equipment's resale fit.
- Capacity: base kVA and any additional cooling-stage ratings.
- Voltage: primary and secondary ratings, connections and available taps.
- Condition: service history, damage, leaks and known operating problems.
- Completeness: bushings, cabinets, cooling equipment and included accessories.
- Records: drawings, test reports and traceable serial-number information.
03Older nameplates often reflect manufacturer changes
Transformer businesses have changed ownership, and equipment retains the nameplate installed when it was built. Familiar product-line histories include Westinghouse to ABB to Hitachi Energy, McGraw-Edison and RTE to Cooper to Eaton, and Waukesha to Prolec GE. These are identification clues, not a rule that every product from an older company belongs to the same successor.
Send the original name exactly as it appears, along with the serial number, style or catalog number and manufacturing date if readable. Do not relabel a Westinghouse unit as Hitachi Energy or an RTE unit as Eaton simply because of a corporate connection. Accurate original identification makes records easier to match.
| Name on older equipment | Related later names | Useful identification detail |
|---|---|---|
| Westinghouse | ABB; Hitachi Energy | Original serial, style number and product type |
| McGraw-Edison or RTE | Cooper; Eaton | Original catalog number and nameplate ratings |
| Waukesha | Prolec GE | Original serial number and manufacturing date |
04Documentation and parts can distinguish similar units
Manufacturer records can clarify details that photographs cannot, including winding connections, impedance, accessory specifications and the original test results. A factory report referencing applicable IEEE C57 standards is useful when it can be matched to the transformer. Keep records tied to the serial number rather than assuming they cover every unit of that brand.
Parts availability also matters, especially when equipment needs a replacement bushing, tap-changer component or control accessory. A legacy name does not automatically mean parts are unavailable, and a current brand does not guarantee compatibility. Fluid records help too: a label identifying FR3 natural ester describes the insulating fluid, not the transformer manufacturer.
05How to identify a transformer without its main nameplate
Start with existing records and photographs taken from safe, accessible positions. Purchase paperwork, equipment schedules, one-line drawings and maintenance files may identify the original maker or serial number. Photograph any accessible secondary identification plates, stamped numbers or cabinet labels without opening energized compartments.
A bushing label, meter badge or replacement cabinet sticker may identify only that component's maker. Paint color and enclosure shape are clues, not proof of the transformer brand. Send what you have and say which details are uncertain; our seller guides provide additional preparation information.
- Photograph the entire unit and any readable identification marks.
- Check records for serial, catalog, style or drawing numbers.
- Separate transformer identification from accessory labels.
- Describe where each photograph or identification number came from.
06Send the actual plate, not just the brand name
For any of the transformer brands we buy, send a clear nameplate photo, overall photos, location, quantity and condition notes. We review the details and may ask about PCB status, test data or site access. If the equipment fits, our written offer spells out price, freight, loading and payment terms; pickup is scheduled with you and payment follows those terms. See how the buying process works.
Use the equipment offer form to send the original manufacturer information, even if the brand is absent from the cards. We serve sellers throughout every region of Virginia, with neighboring-state and nationwide equipment reviewed on request. We are an independent buyer, not affiliated with any manufacturer, including Virginia Transformer Corp of Roanoke.
Frequently asked questions
Do you buy transformer brands that are not listed on this page?
Yes, we buy all brands, including manufacturers not listed here or in the brand cards. Send the original maker's name and readable rating information rather than trying to match it to a better-known brand. Our scope starts at 10 kVA for single-phase and 15 kVA for three-phase equipment, extending through MVA-class power transformers.
Can I sell a Westinghouse, RTE or McGraw-Edison transformer?
Yes, we buy transformers bearing Westinghouse, RTE and McGraw-Edison nameplates. A discontinued name does not exclude the equipment. Keep the original brand in your description and include serial, style or catalog numbers where available. The electrical ratings, condition and supporting records tell us more than the age of the brand name alone.
Is a newer transformer brand always worth more?
No, a newer brand name alone does not establish greater value. Capacity, voltage configuration, condition and completeness usually matter more, while parts availability and documentation also affect resale fit. A well-documented legacy unit may be easier to identify accurately than newer equipment with missing ratings, unknown damage or incomplete accessories.
Can you review a transformer if I cannot identify the manufacturer?
Yes, send overall photos, accessible identification marks and any existing equipment records if the manufacturer is unknown. State clearly that the main nameplate is missing or unreadable. Do not open energized compartments to search for a label. We do not perform disconnect work; use your own qualified electrician to de-energize and disconnect equipment.
Does an old manufacturer's name tell me whether the transformer contains PCBs?
No, the manufacturer's name alone does not establish PCB status. PCB status must be disclosed and documented; brand, age and appearance are not substitutes for records. Send available fluid documentation tied to the specific unit, and disclose any uncertainty. We do not give environmental advice or ask sellers to drain transformer fluid.