My experience with power supply design treats both hot and neutral with
equal care. That is, you could reverse hot and neutral and not endanger
any characteristic of the supply.
So the conclusion is that if you ran a "properly designed" poweer supply
from 208 you'd have no problems.
- Robert -
On Thu, 17 Sep 1998 [email protected] wrote:
>
>
> My company manufactures systems which incorporate power supplies from
> various manufactures. Typically these supplies have ratings such as
> 100V-140V/200V-240V and are designed to operate on a single phase input.
> Some of my customers have the US 208V 3 phase power distribution which
> gives you 208V phase to phase or 120V phase to neutral.
>
> My question is directed towards the power supply people on this list.
>
> Can ANY supply intended for 200-240V single phase be used at 208V phase
> to phase (double phase). Would components (EMI suppression for example)
> be placed between neutral and ground that would preclude the supply
> from being used phase to phase?
>
> Would the use of these supplies in a phase to phase mode negate the
> EMI/EMC performance?
>
> Thanks
>
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