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.
Prepare a 115 kV transformer buying request
Send the exact 115 kV source or export requirement and the required lower-voltage winding. Keep any nearby 120 kV equipment rating exactly as documented; nominal voltage, taps and project acceptance determine whether it can be considered. Include the required continuous MVA and delivery date.
115 kV GSU and substation transformers for sale
J&J accepts 115 kV power transformer, generator step-up and substation transformer requirements. 115 kV utility substations, plant interconnections, operating spares and replacement projects. Email your one-line, MVA, voltage ratio, quantity and needed-on-site date for the relevant equipment records and quotation.
- Generator step-up transformers for sale
- Substation transformers for sale
- Substation equipment for sale and package inquiries
| Buying requirement | What to compare |
|---|---|
| 115 kV GSU transformers for sale | For a 115 kV GSU, send the generator voltage, generator MVA, winding connection and neutral-grounding requirements. The published ABB 115/13.2 kV GSU is a separate offer from the reconditioned 115/24.9 kV transformer units. |
| 115 kV substation transformers for sale | For a 115 kV substation, compare the required secondary with the actual offered winding. Identify any voltage conversion, reconnectable winding duty, tap-changing requirement and parallel-operation constraint before choosing a replacement. |
| 115 kV substation equipment or a complete package | Specify the transformer, breakers, switchgear, disconnects, protection and controls required. Included equipment and site work are defined in the quotation; an individual transformer listing is not a complete substation package. |
Which 115 kV transformer opportunities are listed?
The following 4 public records are open for inquiry. A listing may contain multiple units or offered positions. Sold and committed equipment is excluded, and submitted schedule quantities still require individual identity confirmation.
Need 115 kV to 24.9Y/14.4 kV grounded wye?
Send that exact requirement, including the required MVA and high-side winding connection. The 115/34.5 kV units on this page are not an exact voltage match for a 24.9 kV secondary. A grounded-wye secondary does not establish whether the high side is wye or delta.
- State 24.9 kV line-to-line and approximately 14.4 kV line-to-neutral when that is the required secondary arrangement.
- For a 40/53.3 MVA requirement, identify ONAN and ONAF ratings separately, together with temperature rise and frequency.
- Include BIL, copper or aluminum winding requirements, tap range, impedance basis and the controlling design and test specification.
What must match besides 115/34.5 kV and MVA?
Confirm winding connection and phase shift, impedance on its stated MVA base, taps, BIL, cooling stages, frequency, losses, terminals, accessories, controls, dimensions, weights, fluid, sound, site conditions, and project standards.
- Do not infer parallel compatibility from a matching ratio; verify vector group, impedance magnitude and tolerance, tap position, regulation, and protection studies.
- Use the actual nameplate and final test report where available; a design value is not a final tested value.
- Coordinate transport, offload, foundation loads, oil handling, field assembly, testing, and energization milestones before a commercial commitment.
How should a 115 kV transformer RFQ be submitted?
Send the required continuous and forced-cooled MVA stages, 115 kV system basis, low-side voltage, winding connections, target impedance and base, taps, BIL, quantity, project state, destination, and needed-on-site date.
Public listings are represented opportunities, not reserved or guaranteed stock. Seller authority, serial identity, present condition, exact location, availability, price, included scope, and delivery require current written confirmation and remain subject to prior sale.
Request price, availability and delivery
Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com. Include the listing ID if you have one, MVA, exact voltage ratio, quantity, acceptable condition, site and required delivery date. J&J serves U.S. projects nationwide from Sugar Land, Texas.
- Choose new or unused surplus, used, rebuilt or reconditioned equipment; condition is stated for the specific offered unit.
- Request photos, nameplate, drawings, available tests, included accessories and inspection terms.
- Confirm price, freight or delivered scope, loading, warranty, payment terms and the agreed delivery milestone in writing.
115 kV step-down transformer requirements
For a 115 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.
115 kV-class transformer sale and quotation requirements
For a 115 kV-class 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.
How do I request a 115 kV transformer price and delivery quote?
Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com with the actual source and output voltages, continuous MVA, duty, quantity, site and required date. Identify condition preferences and include a nameplate, one-line or specification when available. The quotation confirms the proposed unit, records, accessories, allocation and transport scope.
Where can I buy 115 kV transformers?
Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com. Review the current 115 kV transformer equipment page or send your specification for a different GSU or substation requirement. Current availability, price and delivery are confirmed in writing.
Which 115 kV transformers are offered for sale?
Published 115 kV records include Westinghouse, 12/16/20/22.4 MVA; rating-stage basis to confirm, 115/24.9 kV; WEG, 125 MVA, 115/34.5 kV; Manufacturer disclosed in the qualified technical package, 124.8/166.4/208 MVA, 115 kV HV / 34.5 kV LV; ABB Power T&D, 80/106.67/133.33 MVA at 55C rise; 89.6/119.47/149.33 MVA at 65C rise, 115 kV grounded wye / 13.2 kV delta. Compare each unit's listed condition and exact winding duty, then request current allocation and the matching technical package.
Is a substation transformer the same as a complete substation for sale?
A substation transformer is one piece of equipment. A complete substation package has a defined equipment schedule that may include breakers, disconnects, switchgear, protection and controls. Ask J&J for the exact included scope; site design, installation and commissioning are included only when expressly quoted.
Can a 115/34.5 kV transformer replace a 115/24.9 kV unit?
It is not an exact voltage match. Do not assume taps can bridge the difference. Request the actual winding and tap data and have the project engineer review any alternative.
Are the listed 115 kV alternatives interchangeable?
No. They have different secondary voltages, ratings, condition and evidence bases. Review matching unit records and project requirements before selecting an alternative.
Can two 115 kV transformers operate in parallel?
Only after the responsible engineer confirms ratio, vector relationship, impedance, taps, protection, grounding, and system studies.
Can J&J supply another 115 kV rating?
Yes. Submit the complete duty, MVA, ratio, BIL, impedance, vector, taps, cooling, site, documents, condition acceptance, quantity, and required date for private screening.
Are the listed units guaranteed available?
Public listings are represented opportunities, not reserved or guaranteed stock. Seller authority, serial identity, present condition, exact location, availability, price, included scope, and delivery require current written confirmation and remain subject to prior sale.
Who approves a 115 kV transformer match?
The project team and its responsible engineer must approve technical suitability, protection, system studies, installation, testing, and operation. J&J is not the engineer of record.
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.