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.
Request a 345/34.5 kV transformer quote
Compare the actual 345/34.5 kV transformer records by required continuous MVA, winding arrangement, condition and test evidence. Specify generator/collector or proposed step-down duty and the required arrival date; confirm current allocation and the included delivery scope directly with J&J.
345/34.5 kV transformers for sale
For a 345/34.5 kV transformer quote, identify the required MVA, operating direction, winding connection, condition, quantity and delivery date. Review the linked equipment's actual nameplate and stated duty; the ratio alone does not establish a GSU or step-down match. Email tommy@jjtransformers.com or call Tommy Marco at 346-276-9540 for the exact equipment record, price and written availability.
Which 345/34.5 kV transformer is listed for sale?
J&J Transformers LLC has an available Prolec GE 132/176/220 MVA, 345/34.5 kV unit with a 13.8 kV delta tertiary and an available Georgia Transformer 108/144/180 MVA unit with a 12 kV buried-delta tertiary. Both are brand new, never used and never energized. Review each unit’s technical package against your project requirements. Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com with MVA or MW, voltages, quantity, site, and need-by date. Current availability requires written reconfirmation; subject to prior sale. Final allocation and delivery terms are confirmed in writing.
- 220 MVA 345/34.5 kV Prolec GE Transformer
- 180 MVA 345/34.5 kV Georgia Transformer
- 260 MVA 345/34.5 kV Siemens Transformer
- 345/34.5 kV Transformer Production Positions
| OEM | MVA | HV / LV / tertiary | Cooling / duty basis | Quantity | Equipment location | Condition and evidence |
|---|---|---|---|---|---|---|
| Prolec GE | 132/176/220 MVA; 46.2/61.6/77 MVA tertiary | 345/34.5 kV with 13.8 kV delta tertiary | Collector step-up duty; ONAN/ONAF/ONAF, 60 Hz, three-phase | 1 documented unit | USA | Brand new, never used and never energized; approval drawings reviewed. Serial-specific nameplate and approval drawings reviewed. |
| Georgia Transformer | 108/144/180 MVA; 37.8/50.4/63 MVA tertiary | 345/34.5 kV with 12 kV buried-delta tertiary | ONAN/ONAF1/ONAF2, 60 Hz, three-phase, vector group YNyn0+d1 | 1 documented unit | USA | Brand new, never used and never energized; factory acceptance tested September 2024. Serial-specific approval drawings and FAT report reviewed. |
| Siemens | 260 MVA | 345/34.5 kV | Confirm in unit package | 1 schedule entry; individual identity to confirm | Location confirmed with quotation | Condition and service history require confirmation. J&J-submitted inventory schedule; matching unit-specific technical records to confirm. |
| Manufacturer disclosed in the qualified technical package | 266 MVA offered; final rating requires reconciliation | 345 kV HV / 34.5 kV LV | Seller offer summary; exact cooling stages require confirmation. | 2 offered positions | Dispatch location confirmed with quotation | Factory manufacturing position; completion pending. Seller offer summary; exact cooling stages require confirmation. |
Build the delivery and document review around the proposed unit
A 345/34.5 kV voltage match is the beginning of procurement. Give J&J the controlling project specification and the owner's required document list so gaps can be identified before a commercial commitment.
- Identify the required continuous and cooling-stage MVA ratings and the specified tertiary duty.
- List the required drawings, nameplates, test reports, inspection access, and acceptance hold points.
- Separate equipment availability from transport readiness, site receiving readiness, and energization.
- Confirm included accessories, assembly responsibilities, freight terms, and any origin restrictions in the written proposal.
Send a requirement that can be matched
Start with MVA, quantity, project state, and needed-on-site date. Add the one-line or specification through direct follow-up with Tommy. The email link includes this voltage ratio in the subject.
| Requirement | What to provide |
|---|---|
| Equipment duty | Collector step-up, GSU, substation, replacement, or other defined duty |
| Electrical fit | MVA by cooling stage, winding arrangement, tertiary duty, impedance basis, taps, and frequency |
| Project constraints | Quantity, state, receiving date, footprint, origin restrictions, and controlling specification |
| Commercial scope | Required documents, inspection, included accessories, freight, loading, and acceptance conditions |
Is the Prolec GE 220 MVA 345/34.5 kV transformer available?
Yes. The Prolec GE 132/176/220 MVA, 345/34.5 kV transformer is available, brand new and never used. It has never been energized and includes a 13.8 kV delta tertiary. Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com for specifications and pricing. Subject to prior sale; final allocation and delivery terms are confirmed in writing.
Transformer sales completed by J&J
Review original photos and confirmed equipment details from J&J's completed transformer sales. These historical units have sold; current requirements are reviewed against the equipment offered today.
345/34.5 kV step-down transformer requirements
For a 345/34.5 kV step-down request, provide both source and output winding voltages, required continuous MVA, quantity and project date. Compare the candidate's actual operating-direction limits, winding connections, grounding, taps, impedance, insulation and installation interfaces. The voltage page remains a screening route; the step-down hub explains duty and quotation evidence.
345/34.5 kV transformer sale and quotation requirements
For a 345/34.5 kV transformer inquiry, identify both winding voltages, the required continuous MVA and the proposed step-down, GSU, substation or autotransformer duty. This voltage category helps organize a purchase request; it does not establish stock at every rating or automatically qualify a candidate for the system.
- Specify condition acceptance, quantity, winding connections, grounding, taps, impedance, installation limits and needed-on-site date.
- Match the actual second winding voltage and duty-specific cooling rating; the high-voltage class alone does not identify the required transformer.
Common questions
Written quotes and supporting records control unit-specific ratings, availability, condition, price, and delivery.
Which 345/34.5 kV transformer is listed for sale?
J&J Transformers LLC has an available Prolec GE 132/176/220 MVA, 345/34.5 kV unit with a 13.8 kV delta tertiary and an available Georgia Transformer 108/144/180 MVA unit with a 12 kV buried-delta tertiary. Both are brand new, never used and never energized. Review each unit’s technical package against your project requirements. Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com with MVA or MW, voltages, quantity, site, and need-by date. Current availability requires written reconfirmation; subject to prior sale. Final allocation and delivery terms are confirmed in writing.
Does a published 345/34.5 kV listing mean it is reserved for my project?
No. Public listings are opportunities for review and remain subject to prior sale. J&J must reconfirm the specific unit, available scope, current condition, and commercial terms in writing; an RFQ does not reserve equipment.
What if no listed 345/34.5 kV transformer meets my MVA requirement?
Send the full requirement anyway. J&J can review supply options without representing an unconfirmed unit as available. Include acceptable alternatives only when your engineering team has approved them.
Can I receive drawings and pricing?
Contact Tommy Marco at 346-276-9540 or email tommy@jjtransformers.com with the unit reference and project details. J&J will review document access, current availability, scope, and price for that candidate. Public equipment pages do not constitute a quotation.
Is the Prolec GE 220 MVA 345/34.5 kV transformer available?
Yes. The Prolec GE 132/176/220 MVA, 345/34.5 kV transformer is available, brand new and never used. It has never been energized and includes a 13.8 kV delta tertiary. Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com for specifications and pricing. Subject to prior sale; final allocation and delivery terms are confirmed in writing.
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.