Your equipment shortlist
Compare equipment before you request it.
Review the published facts side by side. Matching a voltage or MVA rating does not establish compatibility. Ask your project engineer to review the complete unit records.
| Compare | 60 MVA 115/34.5 kV Virginia TransformersJJ-TX-006 | 155 MVA 115/34.5 kV Virginia TransformerJJ-TX-107 |
|---|---|---|
| Manufacturer | Virginia Transformer Corp. | Virginia Transformer |
| Rating / output | 36/48/60 MVA | 93/124/155 MVA |
| Voltage / winding arrangement | 115 kV delta / 34.5 kV grounded wye | 115/34.5 kV |
| Vector group | Dyn1 | Winding connections and phase shift to confirm |
| Frequency | 60 Hz | Not documented; confirm with J&J |
| Cooling | ONAN / ONAF / ONAF | Not documented; confirm with J&J |
| Impedance and base | 8.42%, 8.41% and 8.46% at 36 MVA, by unit | Not documented; confirm with J&J |
| Tap changer | ABB HV LTC; 103.5–126.5 kV (±10%); 16 raise / 16 lower steps of 0.625% | Not documented; confirm with J&J |
| Insulation / BIL | HV line 550 kV; LV 200 kV | Not documented; confirm with J&J |
| Quantity represented | 3 units | 1 schedule entry; individual identity to confirm |
| Technical details / open items | ONAN/ONAF/ONAF, 60 Hz, three-phase, vector group Dyn1; Measured impedance: 8.42%, 8.41%, and 8.46% at 36 MVA by unit; Copper windings, Type II mineral oil, and ABB HV LTC | Ratings and manufacturer are transcribed from the J&J-submitted schedule; verify them against the matching nameplate and current technical package.; Service history, present condition, frequency, winding arrangement, impedance, tap changer and accessories require unit-specific confirmation.; Historical schedule dates do not establish current dispatch timing, manufacture year or transferable warranty. Request present release terms and any applicable warranty in writing. |
| Evidence reviewed | Three unit-specific nameplates reviewed | J&J-submitted inventory schedule; matching unit-specific technical records to confirm |
| Technical value basis | Three individual nameplates reviewed; the impedance values vary by unit. | Submitted inventory schedule; manufacturer and electrical rating are representations, not an individual nameplate match. |
| Details to confirm | Match each unit to its factory tests and approved accessory schedule; Current preservation, overall/shipping dimensions and individual shipping weights | Individual identity and quantity, current photos, condition/service history and preservation; Frequency, cooling/rise, winding connections and clock, impedance/base, BIL, conductor/fluid and tap schedule; Factory/current tests, included accessories, dimensions/weights and final release/transport scope |
| Represented condition | Brand new, never used and never energized; February-March 2026 nameplates reviewed | Condition and service history require confirmation |
| Equipment location | USA | Location confirmed with quotation |
| Technical records reviewed | 2026-10-08 | 2026-10-08 |
| Availability | Available; three unit-specific nameplates reviewed; subject to prior sale and written reconfirmation | Listed for inquiry by J&J; current allocation and release timing require written confirmation |
| Availability last confirmed | 2026-09-24 | Request current confirmation |
| Shipping estimate | Request a written dispatch and delivery schedule | Request a written dispatch and delivery schedule |
| Nameplate reviewed | Yes — request the unit package | Not recorded as reviewed; request it |
| Drawings reviewed | Not recorded as reviewed; request them | Not recorded as reviewed; request them |
| Factory test report reviewed | Not recorded as reviewed; request test records | Not recorded as reviewed; request test records |
| This unit only | Email for specs & price | Email for specs & price |
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What still needs to be checked?
Confirm frequency, cooling-stage ratings, impedance and its base, taps, vector group, grounding, BIL, site conditions and included scope against the project specification. A table cannot approve the fit.
Match the nameplate to the specification · Review surplus equipment records · Procurement checklist