We supply liquid filled pad mounted distribution transformers. 225 kVA or 300 kVA three phase pad mounted are the US standard ratings around it. See three phase ratings and single phase ratings.
Full load current
| Configuration | Full load current |
|---|---|
| 480 V three phase | 301 A |
| 208 V three phase | 694 A |
| 240 V single phase | 1,042 A |
Nameplate full load current, computed from the standard formula. Free to cite with a link to this page. Any other rating, use the kVA to amps calculator.
What this rating is
250 kVA exists as a single phase pad mounted rating and as an IEC three phase rating. As a US three phase pad mount it is not standard, where 225 and 300 kVA are.
About 301 amps at 480 volts three phase. If a single phase 250 kVA is wanted, that is a real product, though well above the common 25 to 167 kVA residential range.
Common questions
How many amps is a 250 kVA transformer
About 301 amps at 480 V three phase. About 694 amps at 208 V three phase. About 1,042 amps at 240 V single phase. Three phase current is kVA times 1000 divided by the voltage times the square root of three. Single phase leaves out the square root of three, which is why the single phase figures are much higher.
What is a 250 kVA transformer used for
250 kVA exists as a single phase pad mounted rating and as an IEC three phase rating. As a US three phase pad mount it is not standard, where 225 and 300 kVA are.
Is a 250 kVA transformer pad mounted
Sometimes. 225 kVA or 300 kVA three phase pad mounted are the US standard ratings around it.