Equipment summary
Specifications and scope
| Unit ID | JJ-WEG-66-90 |
|---|---|
| Manufacturer | WEG |
| Manufacturer basis | Approval nameplate and preliminary outline drawings reviewed |
| Rating | 54/79/90 MVA |
| Voltage / output | 66 kV delta / 34.5 kV grounded wye |
| Frequency | 60 Hz |
| Vector group | Dyn1 |
| Tertiary | Not documented; confirm the complete winding arrangement |
| Quantity | 1 unit |
| Availability | Available; subject to prior sale and written confirmation |
| Condition basis | Brand new, never used and never energized |
| Condition confirmed by J&J | |
| Current location | USA |
| Listing information reviewed |
Technical values and record basis
Approval nameplate and preliminary design drawings; final tested unit values require confirmation.
| Phases | Three-phase |
|---|---|
| Cooling | ONAN / ONAF1 / ONAF2 |
| Temperature rise | 60°C continuous design basis; confirm the project ambient duty |
| Conductor / fluid | Copper / inhibited Type II mineral oil |
| Tap changer | LV OLTC; 31.05–37.95 kV (±10%); 16 raise / 16 lower steps of 0.625% |
| Impedance and base | Nominal design H–X: 8.63% at 54 MVA, 66/34.5 kV, 85°C |
| Insulation / BIL | HV 350 kV; LV line 200 kV; LV neutral 150 kV |
| Total design weight | 210,903 lb |
| Shipping weight without oil | 131,520 lb, drawing basis |
| Oil volume | 7,274 US gal, drawing basis |
Details to confirm for this listing
- Final nameplate, tested impedance, accepted temperature-rise and ambient basis
- Final installation drawings, accessories, dimensions, current preservation and shipping configuration
Technical highlights
- Three-phase, 60 Hz; ONAN/ONAF1/ONAF2 cooling
- Vector group Dyn1; 66 kV delta / 34.5 kV grounded wye
- Low-side LTC with 16 raise and 16 lower steps of 0.625%
- WEG approval drawings are not final installation drawings
- Final impedance, temperature-rise basis, condition, and shipping scope to confirm in the technical package
Evidence reviewed
Approval nameplate and preliminary outline drawings reviewed
Records apply only to the stated unit or design basis.
Availability and terms
Available; subject to prior sale and 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 termsCheck 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.
- Match MVA, voltage, impedance, taps and winding connections
- Review seven transformer condition risks before purchase
For this listing’s photographs, reports, pricing and current status, call 346-276-9540 or email Tommy with unit ID JJ-WEG-66-90.


