I have 200 amp service to my home. Connected to this is two a/c units, an air compressor, small welder, stove, and other stuff. Now the transformer on the pole is a 15kva (because theres a big '1 5' on the side of it). now sometimes my power usage can be up to 125 amps for a while. would the main on my subpanel break before anything in the transformer? what is that 15kva rating anyways? is that like a duty cycle rating? anyones brain i can pick?