KVA = kilovolt amperes.so the transformer would be 15,000 volt-amperes.so this would be 125 amps@120volt 0r 62.5@240volts. the transformer will deliver this on a continous basis. but it also has a built in overload capacity as the power company tech said but i don't recall how much.the breaker in the house before the breaker on the transformer would trip or the primary fuse would blow if it happened to have one externally. some of the other guys can proably go into more detail.hope this helps!
