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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 | Westinghouse 22.4 MVA 115/24.9 kV Used TransformersJJ-WEST-115-22-2 | 208 MVA 115/34.5 kV Transformer — 2027JJ-TX-202 |
|---|---|---|
| Manufacturer | Westinghouse | Manufacturer disclosed in the qualified technical package |
| Rating / output | 12/16/20/22.4 MVA; rating-stage basis to confirm | 124.8/166.4/208 MVA |
| Voltage / winding arrangement | 115/24.9 kV | 115 kV HV / 34.5 kV LV |
| Vector group | Winding connections to confirm | Grounded wye / grounded wye |
| 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 | H–X 9% at 125 MVA (supplied design sheet) |
| Tap changer | Not documented; confirm with J&J | HV OLTC ±8 × 1.25% (±10%); no taps shown on X or Y windings |
| Insulation / BIL | Not documented; confirm with J&J | HV line 550 kV; HV neutral, LV line and LV neutral 200 kV |
| Quantity represented | 2 represented units | 1 offered position |
| Technical details / open items | The written offer identifies two Westinghouse units with the stated 115/24.9 kV ratio and four MVA ratings.; Pre-owned/reconditioned condition and new bushings are offer representations. Obtain the work scope and present inspection findings before purchase.; Request a readable nameplate for each unit, the rating-stage and temperature-rise basis, winding connections, frequency, taps, impedance and current tests.; Confirm accessories, any included breakers, loading, transport and release timing with the quotation. The review date is not a fresh availability check. | Supplied design data sheet; final unit-specific nameplate and FAT pending.; Ask J&J for the included U.S.-port shipping, commissioning and manufacturer warranty scope in the written offer.; Modifications can be reviewed before completion; feasibility, cost and schedule impact require OEM confirmation.; Any warranty provider, scope, transfer eligibility, start date and commissioning boundary must appear in the written quotation.; Design basis: ONAN/ONAF1/ONAF2, 60 Hz, 65 C temperature rise; grounded-wye high and low sides.; HV OLTC design range ±10%; preliminary 13.8 kV open-delta tertiary. Final unit-specific configuration requires approval.; Design H-X impedance: 9% at a 125 MVA base. This is a design-sheet value, not a final tested result. |
| Evidence reviewed | Received written equipment offer; individual nameplates require review | Supplied design data sheet; final unit-specific nameplate and FAT pending |
| Technical value basis | Received written offer; individual nameplates have not been reviewed. | Supplied guaranteed design sheet; these are design values, not final tested values for an individually matched unit. |
| Details to confirm | Both individual nameplates, frequency, connections, cooling, rise, impedance/base, BIL and taps; Current condition, tests, detailed reconditioning scope, dimensions/weights and accessories | Final unit-specific nameplate, approved revision, tested impedance/losses and final tertiary arrangement; Conductor, OLTC switch specification, complete accessories, current photos and preservation or manufacturing progress |
| Represented condition | Pre-owned / reconditioned; new bushings represented in the offer | Factory manufacturing position; completion pending |
| Equipment location | Location confirmed with quotation | Dispatch location confirmed with quotation |
| Technical records reviewed | 2026-10-08 | 2026-10-08 |
| Availability | Offered September 20, 2026; current availability and allocation require written confirmation | 2027 manufacturing positions offered for allocation; current release terms require written confirmation |
| Availability last confirmed | Request current confirmation | Request current confirmation |
| Shipping estimate | Request a written dispatch and delivery schedule | Projected 2027 completion; shipment and receiving dates require written confirmation |
| Nameplate reviewed | Not recorded as reviewed; request it | 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 | Request more info | Request more info |
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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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