Sugar Land, Texas · Nationwide power-equipment sourcing

346-276-9540 tommy@jjtransformers.com

115 kV transformer sourcing

115/34.5 kV Transformers for Sale

J&J publishes two Virginia Transformer groups covering five 115/34.5 kV unit IDs: three 36/48/60 MVA units and two 50.4/67.2/84 MVA units. Compare winding connections, measured or design impedance, LTC scope, records, condition, location, and project fit. Availability requires written reconfirmation and remains subject to prior sale.

J&J Transformers LLC · Sugar Land, Texas · Serving projects nationwide

Tommy Marco · tommy@jjtransformers.com

High side
115 kV represented
Low side
34.5 kV represented
Published groups
2 opportunity pages
Represented quantity
5 documented unit IDs

Current power equipment inventory

High-side voltage

115 kV results

115 kV transformer listings

Open the 115 kV page

Listings are represented opportunities, not guaranteed stock. Before relying on a unit, confirm its availability, seller authority, condition, exact location, included scope, and technical suitability in writing. All listings are subject to prior sale. J&J is not the OEM or engineer of record.

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Which 115/34.5 kV transformers are currently published?

The public inventory includes three Virginia Transformer HB501 units rated 36/48/60 MVA and two HB533 units represented at 50.4/67.2/84 MVA.

The HB501 pages are supported by three unit-specific nameplates dated February–March 2026. The HB533 opportunity is supported by a two-unit nameplate design sheet; manufacture date, current condition, and final tested impedance remain open items. Each permanent inventory URL states the evidence reviewed and the facts still requiring confirmation.

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.

Common questions

Written quotes and supporting records control unit-specific ratings, availability, condition, price, and delivery.

Do you have 115 kV transformers?

Yes. Two current public opportunity pages represent five 115/34.5 kV unit IDs, subject to written reconfirmation and technical fit.

Are all five 115 kV units identical?

No. The HB501 and HB533 groups have different MVA classes and evidence bases; serial-specific data must be reviewed by unit.

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 source 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.

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