----- Original Message ----- > From: "Seth Mattinen" <se...@rollernet.us>
> On 6/25/2011 15:12, Leo Bicknell wrote: > > I have never seen a generator that syncs to the utility for live, no > > break transfer. I'm sure such a thing exists, but that sounds crazy > > dangerous to me. Generators sync to each other, not the utility. > > Most of these come in open, delayed, or closed transition models: > http://www.gedigitalenergy.com/powerquality/ATSHome.htm > > For open and closed transitions you'll most certainly want to sync to > utility to transition between the two. For the delayed transition model > it'll stop at the intermediate "open" point for a configurable amount of > time during which the load is disconnected from everything (i.e. let all > the motors spin down first). And more to the point, if you're installing 2-5MW of generation capacity, it's not all that uncommon to make it a cogen plant, at which point yeah, you're gonna run in sync. Leo: note that your body text was an *attachment* for some reason; new mailer? Cheers, -- jra -- Jay R. Ashworth Baylink j...@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274
