big DC -48V to AC inverters

Thu Jul 31 01:35:24 UTC 2008

If you do invert, don't forget the cooling budget. Inverters run HOT!

> -----Original Message-----
> From: Tim Jackson [mailto:jackson.tim at gmail.com] 
> Sent: Wednesday, July 30, 2008 5:36 PM
> To: Andreas Ott; nanog at merit.edu
> Subject: Re: big DC -48V to AC inverters
> 
> Unipower out of florida.. They can provide scalable inverters 
> for 120 and 208/240. Modular N+1 setups and very flexible..
> 
> We have a large 200amp 120vac setup from them. I'd recommend 
> letting your electrician build a parallel setup instead of 
> relying on their modules, however...
> 
> 
> 
> 
> On 7/30/08, Andreas Ott <andreas at naund.org> wrote:
> > Hello,
> >
> > we are looking into providing power for 'legacy' equipment 
> in a data 
> > center that is exclusively giving us -48V DC power. The most recent 
> > thread on this list was about -48V DC modems but in our case I am 
> > rather looking into inverting on the order of 4 kW per rack 
> from the 
> > supplied DC into AC equipment. And yes, that's not the most 
> efficient 
> > use of power, we know it already ;-) .
> >
> > Does anyone operate devices like this that are capable of 2...4 kW 
> > power conversion and do you have recommendations, good or bad 
> > experience to share?
> >
> > Please reply direct to me and indicate if it's OK to use 
> your answer 
> > in a summary e-mail back to the list.
> >
> > Thanks, andreas
> > --
> > Andreas Ott      K6OTT               andreas at naund.org
> >
> >
> 
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