Transformers is the way to go boost and buck, but do a cost analysis for wire vs transformer, go even more than the 480 Jerry
On Mon, Jan 10, 2022, 3:34 AM Foxfire Energy <[email protected]> wrote: > Hi Guys, Got a good one for you.. We were tasked to refurbish a Stand > Alone (aka Off Grid) power system on a 100 acre private resort island off > the New England coast a few years back.. The system has a 12kW(AC)/ 48VDC > power center (@120/240VAC) with a 10kW Bergey wind turbine, 3kW of Solar > and a 12kW Diesel Generator.. It currently powers two main lodges and 10 > private cabins.. The system was never installed properly and had > significant damage when we got there (no system ground, evidence of several > lightening strikes, open/corroded connections, and poor workmanship in > general) > The new owners want to build a third lodge at the other end of the > island.. Some 3600ft away, and want to feed full power from the existing > system to the new lodge.. Thing is, the new owner is pretty brainy (keeps > me on my toes).. My first thought was to bump the 120/240VAC up to 480VAC > and send it on like 4/0AL and back down to 120/240VAC at the new lodge > (we've done it before).. The new owner wants to launder the AC to DC and > back for transmission.. Says DC for transmission is the new Cats Pajamas > because of the efficiency.. News to me.. Anyone have experience with DC for > transmission? Again.. I'm shooting for 15kW (including 25% for continuous > duty), 3600ft, 600V wire (but could go with a different wire) and a line > loss under 5%. TIA db > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
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