20 MVA mobile substation transformer, 46 kV to 12.47 or 24.94 kV wye
Price on request
20 MVA substation transformers
A 20 MVA three-phase transformer carries 2,776 A at 4.16 kV, 926 A at 12.47 kV and 837 A at 13.8 kV at full load.
Every unit is tested before it ships and delivered by us.
20/26 MVA substation transformer, 115 kV wye to 13.8 kV delta
Price on request
20 MVA substation transformer, 34.5 kV wye to 13.8 kV
Price on request
20/26.67/33.33 MVA substation transformer, 115 kV delta to 6.9Y/3.98 kV, with load tap changer
Price on request
20/26/33 MVA substation transformer, 230 or 161 kV wye to 115 kV wye
Price on request
20000 kVA substation transformer, 66 kV delta to 26.4 kV wye
Price on request
20/26/30 MVA substation transformer, 138 kV delta to 13.8 kV wye, with load tap changer
Price on request
20 MVA transformer, 138 kV delta to 4.16Y/2.402 kV
Price on request
Full-load current of a 20 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 | 4,811 A |
| 4.16 kV | 2,776 A |
| 12.47 kV | 926 A |
| 13.2 kV | 875 A |
| 13.8 kV | 837 A |
| 24.94 kV | 463 A |
| 34.5 kV | 335 A |
| 69 kV | 167 A |
| 115 kV | 100 A |
| 138 kV | 83.7 A |
Work it out at another voltage with the kVA to amps calculator.
Questions about used 20 MVA substation transformers
How many amps is a 20 MVA transformer?
A 20 MVA three-phase transformer carries 2,776 A at 4.16 kV, 926 A at 12.47 kV and 837 A at 13.8 kV at full load. Full-load current is the rating divided by √3 times the line-to-line voltage: 20,000,000 VA ÷ (1.732 × 4160 V) = 2,776 A.
What 20 MVA substation transformers does Arcbarn have for sale?
Arcbarn has 8 listings, by makers including Virginia Transformer, ABB and Cooper. All 8 are priced on request.
What tests does Arcbarn run on a used 20 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.