I have an oddball custom-spec variac with a 208/120V winding.
From a practical standpoint, is there any reason I can't cheat by running it off of a 240V line?
Measured idle current at 208V was 3A. Measured idle current at 240V was 7A. It's roughly a 10kva unit.
This transformer is going to be housed inside of an enclosure with forced ventilation.
I know it is common practice for manufacturers to design motors which are capable of running on 208V or 240V, but I also understand that is generally accomplished by putting the motor into an under-excited state on 208V as opposed to over-exciting it on 240V as would be the analog here.
I really don't want to have to deal with a buck transformer just to run this thing.
Is the extra magnetizing current really going to cause that much trouble here? This transformer will not see continuous load. Probably 60 minutes maximum.
From a practical standpoint, is there any reason I can't cheat by running it off of a 240V line?
Measured idle current at 208V was 3A. Measured idle current at 240V was 7A. It's roughly a 10kva unit.
This transformer is going to be housed inside of an enclosure with forced ventilation.
I know it is common practice for manufacturers to design motors which are capable of running on 208V or 240V, but I also understand that is generally accomplished by putting the motor into an under-excited state on 208V as opposed to over-exciting it on 240V as would be the analog here.
I really don't want to have to deal with a buck transformer just to run this thing.
Is the extra magnetizing current really going to cause that much trouble here? This transformer will not see continuous load. Probably 60 minutes maximum.
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