On 08/26/2010 09:40 PM, Michael Torrie wrote: > Generators bring some interesting things to the mix. As you say you > can't have a generator without a UPS. But the UPS has to be pretty > smart when switching back and forth between line, battery, and > generator. Not only does the UPS have to carry the load while the > generator gets up to speed, it also has to match phase with the > generator. This doesn't take very long, but you have to have a pretty > expensive UPS to do this. Then when line power returns, the UPS has to > carry the load again while it adjusts the phase to match the line phase. > We have a nice big, in-line UPS at work that does all this. Works well > if you have the resources.
So, for a time, the UPS generates power at a slightly incorrect frequency in order to adjust the phase? That's a cool hack. I prefer the idea of putting batteries in the computer, though. It works for laptops, why not for servers? http://news.cnet.com/8301-1001_3-10209580-92.html Shane /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
