Buying several transformers or reviewing an exact ratio?
For a multi-unit order, specify each electrical configuration, accepted condition and delivery phase. Start with the current equipment records, then request the identity, documents, allocation and quote scope for each proposed unit.
Second-hand, rebuilt and reconditioned transformers for sale
Compare used GSU transformers, pre-owned substation transformers and rebuilt power transformer offers by their actual service history. Refurbished and reconditioned describe work that needs a documented scope; they do not make equipment new. J&J's ABB, Westinghouse and reconditioned GSU records retain the exact rating, voltage, open repair items and available tests.
Transformers for sale by voltage
Compare power transformers for sale for 69 kV, 115 kV, 138 kV, 230 kV, 345 kV and 500 kV system projects. Review each equipment record's exact winding voltages, MVA, condition and current allocation before requesting a quote.
Which used transformers can you review now?
5 separate used, pre-owned, rebuilt or reconditioned listings are published. Each has its own condition basis and open technical questions. A historical test or rebuild is separate from current inspection, readiness to energize and allocation.
Used, pre-owned, rebuilt and unused mean different things
Pre-owned describes a prior ownership history; it does not establish whether equipment was energized. Previously used equipment needs an operating and maintenance history. Rebuilt or refurbished equipment needs a documented work scope and tests after the work. Unused surplus belongs in a separate condition category.
Three rebuilt ABB 230/13.8 kV transformers
The public lot has a delta high-side winding and a grounded-wye low side. Its published maximum is 59.7 MVA at the stated 65°C basis. Compare each unit's cooling stages, winding connection, taps, insulation and included accessories with the required duty; the lot is not a 100 MVA offering.
Distinct Westinghouse reconditioned and rebuilt offers
The 115/24.9 kV offer represents two 12/16/20/22.4 MVA reconditioned units with new bushings. The separate 66 MVA Westinghouse/GE pair has a supplied report for one unit showing 140.9 kV delta / 34.5 kV wye, different from the nominal 138 kV offer description. Recorded valve leaks and a broken gauge need present repair verification; no readiness-to-energize claim is made.
What should I ask before buying a used transformer?
Request the nameplate, known operating history, preservation records, recent photographs, electrical tests and all documented repair or rebuild work. Ask which records are missing. Match each report to the physical unit and agree on inspection and acceptance requirements before purchase.
- For a rebuilt unit, identify what was repaired or replaced and the test dates following that work.
- Confirm the condition and included scope of bushings, radiators, tap equipment, cooling controls and loose parts.
- Have the responsible project team decide what current inspection and testing evidence is needed.
- Document warranty, inspection rights, loading, transport and any as-is conditions in the unit-specific quotation.
Compare the complete purchase cost
A used transformer price is only one part of the comparison. Review technical compatibility, inspection and testing, required accessories or work, loading, transport, offloading and commissioning responsibilities. A lower purchase price cannot resolve a mismatched winding or insufficient continuous rating.
Request a pre-owned or replacement transformer
Email Tommy the existing nameplate or one-line, required MVA and cooling duty, high- and low-side voltage, winding connections, frequency, quantity, destination and required arrival date. State whether previously energized, rebuilt or only unused equipment is acceptable.
Use the buyer tools before comparing equipment
Estimate the load, review the candidate's condition records, and compare the complete quotation on the same basis. These resources help your project team identify missing information before accepting a transformer offer.
Buying a replacement or planning a spare?
Compare the offered transformer with the operating unit and the project specification. Keep the winding duty, cooling-stage ratings, technical deviations, inspection scope and delivery responsibilities beside the quoted price.
Buying this condition for step-down duty
For a new, unused, used, rebuilt or surplus step-down requirement, retain the offered unit's actual condition and evidence basis. Confirm the permitted operating direction, continuous capacity, winding connections, grounding, taps, test records and included equipment before accepting a match.
Choose the transformer duty before comparing sale offers
Describe the transformer you want to buy by actual source/output voltage, required MVA, power-flow duty, quantity, condition acceptance and delivery date. Step-down, substation, GSU, pad-mounted, dry-type and autotransformer inquiries remain separate technical matches within J&J's broader transformer supply coverage.
- For used, surplus, rebuilt or unused equipment, compare the candidate's nameplate, drawings, available tests, storage history and written condition description.
- State a requested manufacturer or model where necessary; branded equipment inquiries do not establish manufacturer authorization, matching stock or an approved substitute.
Common questions
Written quotes and supporting records control unit-specific ratings, availability, condition, price, and delivery.
Where can I buy a second-hand or reconditioned power transformer?
Compare used GSU transformers, pre-owned substation transformers and rebuilt power transformer offers by their actual service history. Refurbished and reconditioned describe work that needs a documented scope; they do not make equipment new. J&J's ABB, Westinghouse and reconditioned GSU records retain the exact rating, voltage, open repair items and available tests. Email tommy@jjtransformers.com or call Tommy Marco at 346-276-9540 for the exact equipment record, price and written availability.
Can I buy used transformers from J&J?
J&J reviews used and rebuilt transformer requirements and publishes specific documented opportunities. ABB rebuilt and Westinghouse reconditioned/rebuilt offers are shown separately from new/unused inventory. Read each condition and documentation limit; current availability requires written confirmation.
Does pre-owned mean refurbished?
No. Prior ownership does not establish refurbishment or operating history. Request the condition statement, any documented work scope and the relevant tests for the exact unit.
Do all used transformers have the same warranty?
No. Warranty provider, coverage, start date, exclusions and inspection terms are specific to the quoted unit. Ask for written terms before relying on a warranty claim.
Can I request several transformers with different voltage ratios or MVA ratings?
Yes. Send quantity per configuration, winding voltages, continuous MVA, accepted condition and required delivery phase to Tommy. The quotation identifies the actual unit, documents, allocation and included scope for every position. Identical-unit and parallel-operation requirements need explicit review.
Related equipment and guides
Browse the related equipment and guides, or email Tommy to discuss your project.
