[ARC5] UPS Transformers

Peter Gottlieb nerd at verizon.net
Thu Nov 19 13:02:17 EST 2015


I "picked up" a 5 kVA 120/240 pure sine long run UPS at the MIT flea for nothing. The guy didn't want to move it again, it weighed 125 pounds. It too takes 48 volts and I have eight 24 volt 100 AH lithium batteries in series parallel running it. It happily runs the house. 


Peter

> On Nov 19, 2015, at 12:41 PM, Kenneth G. Gordon <kgordon2006 at frontier.com> wrote:
> 
> Well, in my case, some time ago, I found, on the loading-dock of the local 
> university's Electrical Engineering Dept, ready to be scrapped, a 
> dual-115VAC output, pure-sine wave, at 20 amps, UPS with control panel.
> 
> Needless to say, I grabbed them as fast as I could carry their over 100 
> pound weight each.
> 
> They take 48 VDC input.
> 
> I have gathered a short "rack", with heavy-duty casters under it, in which to 
> mount them, with their batteries.
> 
> The manual, which is still available, costs $75.00. I've got that on the way 
> too.
> 
> I can hardly wait to get it in operation.
> 
> Ken W7EKB
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