If they were designed for robustness, rather than initial cost, it should be simple to make them modular. Stack ‘em in series to step up voltage, in parallel to increase amperage, and some combination of both. The basic unit might be something like a 25 kV, 1000 AMP block. Plumb the cooling independently as well.
Ehhh, there are some games you cannot play at 250,000 or 350,000 volts. I appreciate your idea and I’m not an expert on these things.
it should be simple to make them modular. Stack ‘em in series to step up voltage, in parallel to increase amperage, and some combination of both.
Actually, no. These transformers are designed to handle a maximum load. If you had two identical transformers then (theoretically) you should be able to put them in parallel and double the load, but, what happens is they are not identical and over time the differences increase. As soon as there is a difference, even a very small difference then the load shifts to the one with less resistance. As soon as that happens it overheats and fails.
it’s a lot more complicated than that.