[spokeshave]

the radiators where the internal oil (and thus the transformer itself) is cooled are thinner. I’d venture to say 1/8 to 1/4 inch thick - something that can be penetrated with many rifle rounds.

And from what I’m reading (they don’t seem to want to share too much information with the public), that is what may have been done.

In a previous existence...as a small shaving...Spokeshave worked as a welder....and on cooling fins...oval in cross section and about 1/16 inch thick.

These were small transformers about 4 ft high.

[meyer]

Weldshave - has an interesting ring to it.
Sounds reasonable - I have never welded on these, and the only welding I have done was inadvertent welding involving electricity and some “oops” thrown in.

These main substation power transformers are pretty huge - 15-25 feet high, with enough floor space on top for a dining room set. They ship without oil and are filled on site because of the weight. I think that because of the size and weight of the oil itself, thicker material is needed.

Then again, my numbers could be off. These larger transformers actually pump the oil through the coolers rather than relying on just convection, which is common on less enormous units.

They might could use your help over in Boone County. :)