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 | 180 MVA 345/34.5 kV Georgia TransformerJJ-TX-003 | 220 MVA 345/34.5 kV Prolec GE TransformerJJ-TX-002 |
|---|---|---|
| Manufacturer | Georgia Transformer | Prolec GE |
| Rating / output | 108/144/180 MVA; 37.8/50.4/63 MVA tertiary | 132/176/220 MVA; 46.2/61.6/77 MVA tertiary |
| Voltage / winding arrangement | 345/34.5 kV with 12 kV buried-delta tertiary | 345/34.5 kV with 13.8 kV delta tertiary |
| Vector group | YNyn0+d1 | Grounded Wye–Wye / Delta; clock to confirm |
| Frequency | Not documented; confirm with J&J | 60 Hz |
| Cooling | Not documented; confirm with J&J | ONAN / ONAF / ONAF |
| Impedance and base | Not documented; confirm with J&J | Design H–X: 12.0% at 132 MVA |
| Tap changer | Not documented; confirm with J&J | Not documented; confirm with J&J |
| Insulation / BIL | Not documented; confirm with J&J | Not documented; confirm with J&J |
| Quantity represented | 1 documented unit | 1 documented unit |
| Technical details / open items | ONAN/ONAF1/ONAF2, 60 Hz, three-phase, vector group YNyn0+d1; Measured H-X impedance: 6.99% on a 108 MVA base; Factory test report concludes results were within technical tolerances | Collector step-up duty; ONAN/ONAF/ONAF, 60 Hz, three-phase; Grounded-wye / grounded-wye / delta winding configuration; Nominal design H-X impedance: 12.0% on a 132 MVA base |
| Evidence reviewed | Serial-specific approval drawings and FAT report reviewed | Serial-specific nameplate and approval drawings reviewed |
| Technical value basis | Serial-specific approval drawings and FAT report reviewed | Supplied nameplate and approval drawings; design values require matching final factory records. |
| Details to confirm | Matching technical records, current condition, complete equipment scope and transport details | Final tested impedance, insulation levels, complete tap schedule and approved drawing revision; Overall and shipping dimensions, shipping weight, accessory schedule and current preservation |
| Represented condition | Brand new, never used and never energized; factory acceptance tested September 2024 | Brand new, never used and never energized; approval drawings reviewed |
| Equipment location | USA | USA |
| Technical records reviewed | 2026-10-08 | 2026-10-08 |
| Availability | Available for sale — confirmed by J&J October 8, 2026; quotation and release terms on request | Available; nameplate and approval drawings reviewed; subject to prior sale and written confirmation |
| Availability last confirmed | 2026-10-08 | 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 | Yes — request matching unit drawings | Yes — request matching unit drawings |
| Factory test report reviewed | Report reviewed; confirm matching records for each unit | Not recorded as reviewed; request test records |
| This unit only | Request more info | Request more info |
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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