ACtually they’re built in China, with several years lead time. At least the big ones that would be the most likely to be destroyed in an EMP event.
Yeah those are the monsters behind chain fences at electric sub-stations. The transportation infrastructure required to transport them would no longer exist. Classic Catch 22: you desperately need the restoration of the electrical grid, but the very components you need cannot be moved into position - because you lack electricity.
We a have a huge transformer plant right here is southern Ms. Howard Technologies makes ‘em and ships ‘em by the thousands. (Hope this does not make us a target