Iis been a long while back, but my experience at the Navy yards in San Diego, CA was that the higher efficiency, higher reliability, overall "robustness" and available options (fan oil cooling, etc) of the industrial transformer made it worth the extra $'s to install in the industrial waterfront...
In LV situations where we needed 600 MCM we'd usually "double-up" #4/0 instead since it was always readily available locally. Usually the same sized conduit could be used or we'd have to go up one trade size of conduit depending on insulation type, etc.
What's a good resource for basic pulse transformer design. What does the pulse number (12, 18, 24, etc) mean? Is it just the number of pulses delivered to the xfmr primary each period?
Thanks and best regards!