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I’ve never had to spec one of these before, but I would think that there are a few people on this forum who have come across them, @MaxHeadRoom , perhaps.
I need two outputs of 110V@250A (27.5kVA).
It seems obvious to me that the top transformer is 27.5kVA, and I’m thinking that the other one should be about a third more, because it has to supply the difference between the 230V phase voltage and 346V (being 400*√3/2) as an auto transformer.
Am I on the right lines?
I need two outputs of 110V@250A (27.5kVA).It seems obvious to me that the top transformer is 27.5kVA, and I’m thinking that the other one should be about a third more, because it has to supply the difference between the 230V phase voltage and 346V (being 400*√3/2) as an auto transformer.
Am I on the right lines?
