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@naund.org
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@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@naund.org
-- Sent from Gmail for mobile | mobile.google.com
If you do invert, don't forget the cooling budget. Inverters run HOT!
-----Original Message----- From: Tim Jackson [mailto:jackson.tim@gmail.com] Sent: Wednesday, July 30, 2008 5:36 PM To: Andreas Ott; nanog@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@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@naund.org
-- Sent from Gmail for mobile | mobile.google.com
participants (3)
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Andreas Ott -
Tim Jackson -
Tomas L. Byrnes