"Whoa, whoa!
The Load Sharing system uses the Frame Ground
as signal return in most commercial additions.
The test should be conducted from both Positive
and Negative DC output busses of resistance to
the Frame. Anything less than MEGOHMS means
the supply is set up for Integrated Grounding.
Hal
W4HBM"
__________________________________________
Hal, doesn't this apply more to parallel configurations such as with
redundant power supplies?
2008/4/10 Alex <alexeban@gmail.com>:
> Hi Tony:
>
> ... a small correction:
>
> In percents, the tolerance does not change, only in absolute value. As it
> happens with a little luck the actual voltage can be closer to 48 V than for
> separate power supplies because you can have higher and lower ones mixed
> together.
>
> Don't worry too much about having unequal voltages amongst them: ± 1 volt
> won't make much difference provided they all add to 48 V.
>
> 73 and all the best:
>
> Alex 4Z5KS
>
Thanks Alex, that makes more sense.
Anthony
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