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 | 42 MVA 138/34.5 kV Virginia TransformerJJ-TX-102 | Five 110 MVA 138/34.5 kV Kolektor ETRA GSUsJJ-138-110-5 |
|---|---|---|
| Manufacturer | Virginia Transformer | Kolektor ETRA |
| Rating / output | 25.2/33.6/42 MVA | 66/88/110 MVA; 22/29.333/36.666 MVA tertiary |
| Voltage / winding arrangement | 138/34.5 kV | 138/34.5 kV with 13.8 kV tertiary |
| Vector group | Winding connections and phase shift to confirm | YNyn0+d11 |
| Frequency | Not documented; confirm with J&J | 60 Hz |
| Cooling | Not documented; confirm with J&J | ONAN / ONAF1 / ONAF2 |
| Impedance and base | Not documented; confirm with J&J | Reviewed nameplate H–X: 8.09% at 66 MVA; supplied FAT reports 13.41% at 110 MVA. Match the test and plate to the selected unit. |
| Tap changer | Not documented; confirm with J&J | HV OLTC; 124.2–151.8 kV (±10%); 16 raise / 16 lower steps of 0.625% on the reviewed plate |
| Insulation / BIL | Not documented; confirm with J&J | Not documented; confirm with J&J |
| Quantity represented | 1 schedule entry; individual identity to confirm | 5 units; matching unit packages available on request |
| Technical details / open items | 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. | GSU duty; ONAN/ONAF1/ONAF2, 60 Hz, three-phase, vector group YNyn0+d11; Measured impedance: 13.41% on a 110 MVA base at nominal tap; 2020 factory tests passed; those records do not establish current condition; Five-unit lot includes two 2020 builds and three 2021 builds; request all five serial-specific packages before quotation |
| Evidence reviewed | J&J-submitted inventory schedule; matching unit-specific technical records to confirm | Five-unit opportunity confirmed by seller; rating plate and FAT package reviewed for one unit |
| Technical value basis | Submitted inventory schedule; manufacturer and electrical rating are representations, not an individual nameplate match. | One supplied nameplate and one factory-test package; values are not established for all five units. |
| Details to confirm | 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 | All five matching nameplates, insulation levels, approved drawings and factory tests; Reconcile unit-specific impedance bases; confirm current preservation and individual shipping weights |
| Represented condition | Condition and service history require confirmation | Brand new, never used and never energized; 2020 factory records reviewed for one unit |
| Equipment location | Location confirmed with quotation | International; dispatch location confirmed with quotation |
| Technical records reviewed | 2026-10-08 | 2026-10-08 |
| Availability | Listed for inquiry by J&J; current allocation and release timing require written confirmation | Available; 5 units represented; remaining unit packages require review; subject to prior sale and written confirmation |
| Availability last confirmed | Request current confirmation | 2026-09-24 |
| Shipping estimate | Request a written dispatch and delivery schedule | Request a written dispatch and delivery schedule |
| Nameplate reviewed | Not recorded as reviewed; request it | Yes — request the unit package |
| 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 | Report reviewed; confirm matching records for each unit |
| This unit only | Email for specs & price | Email for specs & price |
One request
Request Availability for Your Shortlist.
Email Tommy to discuss these options. The listing IDs will already be in the email subject.
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