@kaydee you wrote with the full authority in electrical engineering but I think you should keep it down a bit or pause once in a while to explain the point an average scientist might find difficult to understand. The whole point is to communicate but trust me few will understand the real message passed here.

Thanks for throwing more light on hysteresis loss. I didn't really understand how serious this is until the first two phase transformer i wond for my little project blew up in heat after making noise for several hours