40/53/67 MVA substation transformer, 138 kV wye to 34.5 kV wye, with load tap changer
Price on request
40 MVA substation transformers
A 40 MVA three-phase transformer carries 5,551 A at 4.16 kV, 1,852 A at 12.47 kV and 1,673 A at 13.8 kV at full load.
Every unit is tested before it ships and delivered by us.
Full-load current of a 40 MVA transformer
Three-phase, at the usual line-to-line voltages: the rating in VA divided by √3 and the voltage.
| Voltage | Full-load current |
|---|---|
| 2.4 kV | 9,623 A |
| 4.16 kV | 5,551 A |
| 12.47 kV | 1,852 A |
| 13.2 kV | 1,750 A |
| 13.8 kV | 1,673 A |
| 24.94 kV | 926 A |
| 34.5 kV | 669 A |
| 69 kV | 335 A |
| 115 kV | 201 A |
| 138 kV | 167 A |
Work it out at another voltage with the kVA to amps calculator.
Questions about used 40 MVA substation transformers
How many amps is a 40 MVA transformer?
A 40 MVA three-phase transformer carries 5,551 A at 4.16 kV, 1,852 A at 12.47 kV and 1,673 A at 13.8 kV at full load. Full-load current is the rating divided by √3 times the line-to-line voltage: 40,000,000 VA ÷ (1.732 × 4160 V) = 5,551 A.
What 40 MVA substation transformers does Arcbarn have for sale?
Arcbarn has 3 listings, by makers including ABB, Ferranti-Packard and VTC. All 3 are priced on request.
What tests does Arcbarn run on a used 40 MVA substation transformer?
Every unit is tested before it ships: turns ratio (TTR) on every tap; insulation resistance; winding resistance; power factor and capacitance; oil sample: dissolved gas analysis and dielectric strength; tap changer inspection and operation. You see the report before you buy.