AvailableTransformers

3,750 kVA ABB generator step-up transformer — 12.47 kV HV / 4.16 kV LV

High-voltage winding12,470Y/7,200 VWye with neutral
Low-voltage winding4,160 V deltaDelta

Designed for generator step-up duty: 4,160 V generator side to 12,470 V system side. High/low winding labels do not indicate input/output direction.

3,750 kVA per unit · ABB · Ocala, Florida, U.S.

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3,750 kVA ABB generator step-up transformer — 12.47 kV HV / 4.16 kV LV
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History, availability and verification

Estimated dispatch
Immediate
Quantity basis
Individual asset; exact included scope subject to agreement.
Availability last checked
2026-09-22

Voltage configurations

Documented secondary winding settings (V)
11850;12160;12470;12780;13090

Equipment overview

Designed for generator step-up duty: 4,160 V generator side to 12,470 V system side. High/low winding labels do not indicate input/output direction.

Actual supplied nameplate reviewed for this transformer. 522 US gallons nameplate fluid volume; actual fluid condition and level require inspection.

Three-phase, 60 Hz, ONAN with aluminum high- and low-voltage windings. Nameplate ratings are not a current test report. Confirm fluid condition, insulation, accessories, taps, grounding, protection, installation and intended direction of operation with a qualified transformer specialist.

The primary and secondary fields preserve the documented application convention. Public high/low labels are ordered by the nominal line-to-line winding voltage; Y/neutral values remain associated with their own winding. Neither a voltage pair nor a search match establishes reversible suitability or site compatibility. Plate images and serials are kept private pending disclosure authorization.

Additional listing details

Listing Reference
EE-OCA-TX-3750

Transformer specifications

Transformer Capacity
3,750 kVA
Primary winding
4,160 V delta
Secondary winding
12,470Y/7,200 V
Primary Connection
Delta
Secondary Connection
Wye with neutral
Vector Group
YNd1 (HV-to-LV nameplate convention)
Tap Positions
5
Impedance
6.93%
Primary BIL
60 kV
Secondary BIL
95 kV
Cooling Class
ONAN
Winding Material
Aluminum
Insulating Fluid
Mineral oil, per nameplate
Temperature Rise
65 °C
View individual tap values
High-voltage winding: 13090; 12780; 12470; 12160; 11850 V. These are discrete positions, not a continuous range.

Additional specifications

Nameplate basis
Actual supplied plate, All Transformers.pdf page 2; current inspection and testing still required
Additional nameplate information
522 US gallons nameplate fluid volume; actual fluid condition and level require inspection.

Current inventory

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