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 | 300 MVA 138/34.5 kV Georgia TransformerJJ-TX-001 | Five 110 MVA 138/34.5 kV Kolektor ETRA GSUsJJ-138-110-5 |
|---|---|---|
| Manufacturer | Georgia Transformer | Kolektor ETRA |
| Rating / output | 180/240/300 MVA; 63/84/105 MVA tertiary | 66/88/110 MVA; 22/29.333/36.666 MVA tertiary |
| Voltage / winding arrangement | 138/34.5 kV with 12 kV buried-delta tertiary | 138/34.5 kV with 13.8 kV tertiary |
| Vector group | YNyn0+d1 | 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 documented unit | 5 units; matching unit packages available on request |
| Technical details / open items | ONAN/ONAF/ONAF, 60 Hz, three-phase, vector group YNyn0+d1; Measured 138/34.5 kV impedance: 9.67% on a 180 MVA base; Copper windings, conservator system, Type II mineral oil, and HV OLTC | 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 | Serial-specific nameplate reviewed | Five-unit opportunity confirmed by seller; rating plate and FAT package reviewed for one unit |
| Technical value basis | Serial-specific nameplate reviewed | Reviewed nameplate, factory-test package and original general/transport drawings cover individual units in the five-unit lot; verify the selected unit before using these values. |
| Details to confirm | Matching technical records, current condition, complete equipment scope and transport details | 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 | Brand new, never used and never energized; 2020 nameplate reviewed | Brand new, never used and never energized; 2020 factory records reviewed for one unit |
| Equipment location | USA | International; dispatch location confirmed with quotation |
| 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; 5 units represented; remaining unit packages require review; 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 | Yes — request the unit package | 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 | 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.
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