Hi cuky2000, the work you have posted on the boards is phenomenal, and have referenced it a lot over the years. It's been a while since I've gone looking, but I believe your website has been down for a while now. Do you have a replacement for this by chance, with your various resources posted...
Since the bushing BIL is higher than the windings, this indicates that if anything, the bushings are the weakest link, not the windings.
There are a lot of reasons out there for doing this (some of them are pretty strange sounding, such as protection from animals). A couple of the best reasons...
