[Ozark Tom]

The really large transformers could be an 18 month replacement item--better to protect against damage than lose one.

[Tilted Irish Kilt]

Ozark Tom :" The really large transformers could be an 18 month replacement item--better to protect against damage than lose one."

Do you remember about 2 years ago , a sniper shot at transformers at a sub-station that supplied electricity to the Silicon Valley ?
They shot .556 rounds at selected transformers in a secluded area, and were never found. Area of fire was selectively choozen, and marked with rock piles, and they were effective.
They took out that one sub-station, but the grid was able to cover the loss, and the electrical grid stayed up.
A fluke - maybe so
But it was well planned and executed, and showed exactly how vulnerable the rural locations of the electrical infrastructure of this country really are.