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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 | HICO 140 MVA 235/34.5/13.8 kV Transformer PairJJ-HICO-235-140-2 | 220 MVA 345/34.5 kV Prolec GE TransformerJJ-TX-002 |
|---|---|---|
| Manufacturer | HICO | Prolec GE |
| Rating / output | 85/115/140 MVA | 132/176/220 MVA; 46.2/61.6/77 MVA tertiary |
| Voltage / winding arrangement | 235/34.5/13.8 kV | 345/34.5 kV with 13.8 kV delta tertiary |
| Vector group | Winding connections and vector clock to confirm | Grounded Wye–Wye / Delta; clock to confirm |
| Frequency | Not documented; confirm with J&J | 60 Hz |
| Cooling | ONAN / ONAF1 / ONAF2 represented | 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 | 2 represented matching units | 1 documented unit |
| Technical details / open items | The received offer represents a matching pair at 85/115/140 MVA, 235/34.5/13.8 kV, with copper windings, three phases and ONAN/ONAF1/ONAF2 cooling.; The exact offered high-side rating is 235 kV. Compatibility with a 230 kV project must be established from the actual nameplates, taps, insulation and project requirements.; An early-October arrival in the United States was scheduled in the earlier offer. Arrival has not been confirmed and the units are not described as immediately available U.S. stock.; Individual condition and service history are unresolved; the pair is excluded from the new/unused and used/pre-owned filters until confirmed.; Request both individual nameplates, frequency, winding connections, tertiary duty, tests, preservation/service records, arrival evidence and written purchase and warranty terms. | 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 | Received written offer for a matching pair | Serial-specific nameplate and approval drawings reviewed |
| Technical value basis | Written offer for a matching pair; confirm both actual nameplates. | Supplied nameplate and approval drawings; design values require matching final factory records. |
| Details to confirm | Both nameplates, current condition/arrival, frequency, rise, connections and tertiary duty; Impedance/base, BIL, taps, factory/service tests, preservation, dimensions/weights and accessories | 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 | Individual condition and service history require confirmation | Brand new, never used and never energized; approval drawings reviewed |
| Equipment location | Location confirmed with quotation | USA |
| Technical records reviewed | 2026-10-08 | 2026-10-08 |
| Availability | Early-October 2026 U.S. arrival was scheduled in the received offer; arrival and present allocation are unconfirmed | Available; nameplate and approval drawings reviewed; 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 | Yes — request matching unit drawings |
| 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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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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