>>
>> Assuming a nominal 240VAC supply, 245V is in no way "not correct" -- it's
only
> about a 2% overvoltage.
>
>And since there is likely no load in shop when the install was taking
>place, the 245 would be a higher than normal reading.
You're nuts. Maybe at the end of a 100 yard long run. Maybe.
There is no reason, however, for the entire feed to a building to sag that far between loaded and unloaded.
only
it's most likely the feed to the building is 480/460 and a transformer is being used. I don't know to many electric companies that will supply 240 3 phase any more.
I'd be willing to bet that the transformer came along with the move and that being the case, yes, it can sag abit when other equipment get going because I can't picture a huge xformer in use here.
only
More guess as you go bullshit.
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