nanog mailing list archives
Re: Want to move to all 208V for server racks
From: Michael Loftis <mloftis () wgops com>
Date: Sat, 4 Dec 2010 13:28:10 -0700
On Sat, Dec 4, 2010 at 12:45 PM, Jay Ashworth <jra () baylink com> wrote:
I phrased my comment poorly, which mislead you. I was suggesting a UPS which took 208VAC on on the charge side, and charged 48VDC batteries with it, providing -48 to a rack full of equipment which took that. People actually call those "48VDC UPSs", though in fact they're just Little Teeny Battery Plants. :-)
Ah, well, the XW (6048's) *do* have a 100A charger each (so up to 300A @ ~48VDC) so they could be used for that too :D-- but that same industry segment, solar/renewable, makes 48VDC charger only/rectifier only systems as well. So my answer still sort of stands :D
Cheers, -- jra
Current thread:
- Re: Want to move to all 208V for server racks, (continued)
- Re: Want to move to all 208V for server racks Joel Jaeggli (Dec 03)
- Re: Want to move to all 208V for server racks Adrian Chadd (Dec 03)
- Re: Want to move to all 208V for server racks Owen DeLong (Dec 03)
- Re: Want to move to all 208V for server racks Gary Buhrmaster (Dec 04)
- Re: Want to move to all 208V for server racks Jima (Dec 03)
- Re: Want to move to all 208V for server racks Joel Jaeggli (Dec 03)
- Re: Want to move to all 208V for server racks Jima (Dec 03)
- Re: Want to move to all 208V for server racks Jay Ashworth (Dec 03)
- Re: Want to move to all 208V for server racks Michael Loftis (Dec 04)
- Re: Want to move to all 208V for server racks Jay Ashworth (Dec 04)
- Re: Want to move to all 208V for server racks Michael Loftis (Dec 04)
- Re: Want to move to all 208V for server racks Ingo Flaschberger (Dec 04)
- Re: Want to move to all 208V for server racks Kevin Oberman (Dec 04)
- Re: Want to move to all 208V for server racks Michael Painter (Dec 04)
- Re: Want to move to all 208V for server racks Lamar Owen (Dec 06)
- Re: Want to move to all 208V for server racks Gary Buhrmaster (Dec 04)
- Re: Want to move to all 208V for server racks Seth Mattinen (Dec 02)
- Re: Want to move to all 208V for server racks Gary Buhrmaster (Dec 03)
- Re: Want to move to all 208V for server racks Gary Buhrmaster (Dec 03)
- Re: Want to move to all 208V for server racks Jay Ashworth (Dec 03)
- Re: Want to move to all 208V for server racks Leo Bicknell (Dec 03)