Company base: Sugar Land, Texas · Nationwide sales · Tommy Marco

346-276-9540 tommy@jjtransformers.com
J&J Transformers LLC logoJ&J Transformers LLCPOWER EQUIPMENT SALES

Transformer opportunity · JJ-TX-201

208 MVA 138/34.5 kV Stored Surplus Transformer

Equipment location: Dispatch location confirmed with quotation. J&J is based in Sugar Land, Texas and serves projects nationwide.

Condition: Surplus in storage; service history requires confirmation. J&J reviews a stored surplus position from a current written offer. Ask for allocation, photos, the matching technical package and a quotation. Availability is subject to prior sale and written confirmation. Contact Tommy Marco at 346-276-9540 or tommy@jjtransformers.com with MVA, voltages, quantity, site, and need-by date. Listing information reviewed .

Stored surplus offerWritten offer checked Release, loading and shipping dates confirmed with quotationRequest current allocation and release terms · subject to prior sale
Request Specs, Price & Availability 346-276-9540
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Equipment photos are not yet published. Request a current photo set and matching technical records through J&J.

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Equipment summary

Specifications and scope

Unit IDJJ-TX-201
ManufacturerManufacturer disclosed in the qualified technical package
Manufacturer basisSupplied design data sheet; final unit-specific nameplate and FAT pending
Rating125/166/208 MVA
Voltage / output138 kV HV / 34.5 kV LV
Frequency60 Hz
Vector groupGrounded wye / grounded wye
TertiaryNot documented; confirm the complete winding arrangement
Quantity1 offered position
ShippingRelease, loading and shipping dates confirmed with quotation
AvailabilityStored surplus offered for allocation; current release terms require written confirmation
Condition basisSurplus in storage; service history requires confirmation
Current locationDispatch location confirmed with quotation
Listing information reviewed

Technical values and record basis

Supplied guaranteed design sheet; these are design values, not final tested values for an individually matched unit.

PhasesThree-phase
CoolingONAN / ONAF1 / ONAF2
Temperature rise65°C
Winding connectionsGrounded wye / grounded wye; final vector clock to confirm
Tap changerHV OLTC ±8 × 1.25% (±10%); no taps shown on X or Y windings
Impedance and baseH–X 9% at 125 MVA (supplied design sheet)
Insulation / BILHV line 650 kV; HV neutral, LV line and LV neutral 200 kV
Preliminary tertiary13.8 kV; 41.66 / 55.33 / 69.33 MVA, preliminary; open delta with external grounding shown. Final configuration/BIL require confirmation.
Approximate overall dimensions374 in L × 193 in W × 276 in H
Approximate shipping dimensions311 in L × 122 in W × 181 in H
Total design weight419,000 lb
Heaviest shipping piece282,500 lb
Design oil volume13,805 US gal shown on sheet
Shipping preservationDry air or nitrogen shown on design sheet
Design losses / baseAt 85°C reference temperature at 125 MVA: no-load 85 kW at 100% excitation; 143.54 kW at 110% excitation; H–X load loss 225 kW H–X; auxiliaries 9.00 kW. Final tests to confirm.
Design exciting current0.17% at 100% excitation; 1% at 110% excitation

Details to confirm for this listing

  • Final unit-specific nameplate, approved revision, tested impedance/losses and final tertiary arrangement
  • Conductor, OLTC switch specification, complete accessories, current photos and preservation or manufacturing progress

Technical highlights

  • Supplied design data sheet; final unit-specific nameplate and FAT pending.
  • Ask J&J for the included U.S.-port shipping, commissioning and manufacturer warranty scope in the written offer.
  • Technical suitability subject to buyer review
  • Any warranty provider, scope, transfer eligibility, start date and commissioning boundary must appear in the written quotation.
  • Design basis: ONAN/ONAF1/ONAF2, 60 Hz, 65 C temperature rise; grounded-wye high and low sides.
  • HV OLTC design range ±10%; preliminary 13.8 kV open-delta tertiary. Final unit-specific configuration requires approval.
  • Design H-X impedance: 9% at a 125 MVA base. This is a design-sheet value, not a final tested result.

Evidence reviewed

Supplied design data sheet; final unit-specific nameplate and FAT pending

Records apply only to the stated unit or design basis.

Availability and terms

Stored surplus offered for allocation; current release terms require written confirmation

Ask for the current technical package, price, included accessories and delivery terms.

Confirm the purchase and delivery scope

Ask J&J to confirm the proposed unit’s allocation, price, inspection access, included accessories, loading and freight boundary, receiving arrangements, release schedule, deposit or reservation terms and any applicable warranty. Photos, matching records and inspection arrangements are coordinated through J&J.

Request written terms

Check this transformer against your project

Compare the complete winding arrangement and condition evidence before requesting a quote. A matching voltage ratio alone does not establish suitability.

For this listing’s photographs, reports, pricing and current status, call 346-276-9540 or email Tommy with unit ID JJ-TX-201.

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