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New, never-energized Georgia Transformer three-phase power transformer, 66/88/110 MVA ONAN/ONAF1/ONAF2, 69 kV to 34.5 kV, 60 Hz. Manufactured in 2025 to ANSI/IEEE standards and factory tested. Fully assembled and stored on cribbing in Oklahoma, USA, available for inspection by appointment. The OEM warranty is still in force.

Built for industrial and power distribution service, the unit suits step-up duty at generation sites as well as step-down substation service, and can be operated at the lower cooling stages where full capacity is not required. Comparable new-build units in this class carry multi-year production lead times. This transformer is available today with no production lag.

Highlights

  • 66 / 88 / 110 MVA, ONAN / ONAF1 / ONAF2, 65 °C rise
  • 69 kV primary to 34.5 kV secondary, three-phase, 60 Hz
  • New and never energized; year of manufacture 2025
  • OEM warranty still in force
  • US-manufactured (Georgia Transformer)
  • Factory tested by the manufacturer; test reports in the data package
  • Winding hot spot RTD and indicator relay
  • Fully assembled; stored on cribbing in Oklahoma, USA
  • Complete spare parts set included

Specifications

Electrical

Item No.STT-06-0036
ManufacturerGeorgia Transformer, USA
TypePower transformer, two-winding, three-phase, oil-immersed, outdoor
Manufactured2025
ConditionNew, never energized
Rating66 MVA ONAN / 88 MVA ONAF (1st stage) / 110 MVA ONAF (2nd stage)
Temperature rise65 °C
High voltage69,000 V
Low voltage34,500 V
Phases / frequency3 / 60 Hz
StandardsANSI/IEEE, IEEE C57 series, ANSI C2 (NESC), ASTM, NEMA, ASME

Cooling and monitoring

CoolingONAN / ONAF1 / ONAF2, radiators with cooling fans
Winding monitoringHot spot temperature detector (RTD) and indicator relay

Weights and dimensions (per manufacturer, approximate)

Total, with oil97,400 kg (214,730 lb)
Shipping63,200 kg (139,330 lb)
Dimensions (L x W x H)8.50 x 4.50 x 6.50 m (27.9 x 14.8 x 21.3 ft)

Scope of supply

Main unit, fully assembled, with the manufacturer's spare parts set:

  • Complete set of gaskets
  • One high voltage line bushing (spare)
  • One low voltage line bushing (spare)
  • One neutral bushing, each type (spare)
  • One sudden pressure relay (spare)
  • One lot breather desiccant
  • One gallon touch-up paint

Field services are available and quoted separately: transport preparation, offload, assembly and oil filling, and field inspections and testing. Not included unless quoted: foundations, interconnecting bus/cable, protection and control panels.

Condition and storage

  • Service history: Built 2025, never placed in service. CTG has not independently verified service history beyond the documents in the data package.
  • Storage: Fully assembled, stored outdoors on cribbing in Oklahoma, USA. Available for inspection by appointment.
  • Warranty: OEM warranty still in force.
  • Factory testing: Insulation level tests (BIL and low-frequency), loss and performance data at reference temperatures, excitation, efficiency at 100/75/50/25% load, and impedance tests performed by the manufacturer. Detailed results are in the data package.
  • Documentation: Technical data sheet, document and drawing list, component manuals, and quality documentation available to qualified buyers.

Commercial terms

  • Offered by CTG Power Systems Intnl., LLC, sole-source and principal-to-principal, directly to the end-user project owner. No tenders, brokers or intermediaries.
  • Price on application, in U.S. dollars, by wire or confirmed irrevocable letter of credit. Credit cards not accepted.
  • EXW point of storage, Oklahoma, USA (Incoterms 2020).
  • Country of origin: USA.
  • Optional services quoted separately: rigging and heavy haul, transport preparation, site assembly and oil filling, field inspection and testing, and commissioning support.
  • Subject to prior sale, seller confirmation, counterparty screening, and CTG's General Terms and Conditions of Sale.

Data package and inspection

The technical data sheet, factory test reports, drawings, and manuals are available to qualified buyers under NDA. To request the data package, an inspection, or a formal quotation, email Sales@CTGPowerSystems.com or call (813) 920-3500 and reference Item STT-06-0036.

Sales / Spec Sheet (PDF):
Download Sales / Spec Sheet – Item STT-06-0036 (PDF)

Specifications are from the manufacturer's technical documentation supplied to CTG. They are believed accurate but not warranted, and are superseded by the manufacturer's drawings and the formal quotation. Weights and dimensions are approximate and must be verified before transport planning. This listing is an invitation to inquire, not an offer.

CTG Power Systems Intnl., LLC
401 East Jackson St., Ste. 2340-F12
Tampa, Florida 33602 USA
Corp. Tel.: (813) 920-3500
Direct: (813) 535-7771
WhatsApp: (813) 918-0762
Fax: (941) 220-6612
Email: Sales@CTGPowerSystems.com
Website: www.CTGPowerSystems.com