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Pre-owned

WESTINGHOUSE 12/13.44/22.4 MVA
115 kV / 24.94 kV power transformer for sale

115 kV high side / 24.94 kV low side

Equipment ID: 1771-1, 1771-2-BWD

Equipment photographs

One supplied nameplate for the existing two-unit Westinghouse listing. Faint serial stamping and both units’ specifications require individual verification.

Westinghouse 115 / 24.94 kV transformer — supplied REP 1772 nameplate
Westinghouse 115 / 24.94 kV transformer — supplied REP 1772 nameplate

Equipment specifications

Manufacturer
WESTINGHOUSE
Equipment ID
1771-1, 1771-2-BWD
Application
Power transformer
Power rating
12/13.44/22.4 MVA
High-side voltage
115 kV
Low-side voltage
24.94 kV
Catalog condition
Pre-owned
Listed quantity
2
Manufacture year
1975 (plate marking)
Tap changer
Five-position no-load tap changer
Supplied plate serial marking
REP 1772 (faint marking; verify from unit)
Type / cooling
SL / OA; Insuldur insulation
Nameplate self-cooled ratings
12,000 kVA at 55 °C rise; 13,440 kVA at 65 °C rise
Forced-air note
22,400 kVA at 65 °C rise when specified accessory equipment is added, per lower plate note
Phase / frequency
3-phase / 60 Hz
HV / LV connections
115,000 V delta / 24,940Y / 14,400 V
Impedance
7.4% at 12,000 kVA, 115,000 / 24,940 V; faint stamping requires confirmation
HV / LV / LV neutral winding BIL
450 / 150 / 150 kV
LV neutral bushing BIL
150 kV
HV tap voltages
120,750 / 117,875 / 115,000 / 112,125 / 109,250 V
HV current at 12 MVA
57.4 / 58.8 / 60.3 / 61.8 / 63.4 A
LV current at 12 MVA
277.8 A at 24,940 V
Oil volume
3,426 gal (faint stamping)
Approximate core and coils weight
27,900 lb
Approximate tank/case weight
24,850 lb
Approximate oil weight
35,700 lb
Approximate total weight
88,450 lb
HV CTs
600:5 multi-ratio; six total
LV CTs
1200:5; three total
Hot-spot CT
L-876840; one total
Electrical specification
935917
Country of manufacture
USA

Rating stages clarified from the supplied plate

The visible plate states 12 MVA at 55 °C rise and 13.44 MVA at 65 °C rise, with a lower note describing 22.4 MVA forced-air operation when the specified accessory equipment is fitted. This replaces the earlier 12/16/20/22.4 MVA catalog shorthand. Installed cooling equipment and the corresponding rating of each unit must be confirmed.

The nameplate marking appears to be REP 1772 and is associated with the existing two-unit 1771/1772 listing. One plate does not establish identical serial-specific data for both units.

Listing details

1771-1, 1771-2-BWD. Westinghouse 115 kV delta / 24.94 kV wye. Existing two-unit reconditioned listing; supplied plate indicates 12/13.44 MVA self-cooled and conditional 22.4 MVA forced-air rating. Confirm both serial numbers, cooling equipment and current condition.

Winding connections, secondary options, included accessories, and tap-changer details must be checked against the unit-specific nameplate and drawings. The description above preserves the listed configuration.

Plan the purchase and delivery

Review the transformer procurement checklist, the technical documentation guide, and delivery planning requirements.

Looking for a different unit? Browse new & unused inventory and pre-owned transformers, or ask about additional sourcing options.

Request the technical package

Ask our team for the records available for this equipment and confirmation of its current status.

  • Nameplate & winding diagram
  • General arrangement drawings
  • Equipment photographs
  • Factory or field test reports
  • Condition & service history
  • Dimensions & shipping weights

Document availability varies by unit. Pricing, location, lead time, warranty, and delivery scope are provided with the quotation.

How do I confirm availability?

Email the equipment ID or call (248) 250-0407. Equipment is subject to prior sale. Current availability and allocation are confirmed in writing.

Can you coordinate transportation and installation?

Yes. We coordinate shipment preparation, oil services, heavy haul, rigging, placement, and qualified installation support as an agreed project scope. Explore full-service solutions.

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