From these limiting factors the manufacturer will design their unit, say for 7200 volts primary, 8 amps. This would result in a kVA capacity of: 7200 V * 8 amps = 57600 VA or 57.6 kVA But, transformers are rated in prescribed sized, like 5, 10, 15, 25, 50, 75, 100 kVA, so a ...
4.61amps X 500 cmil/amp = 2305 circular mils which is closer to #16 per this table http://www.mwswire.com/pdf_files/mws_tech_book/page4_5_6_33_34.pdf so i stand corrected SanPhysics said: This table an my swg table on this link https://en.wikibooks.org/w/index.php?title=...