What about installing a 200 amp breaker in the 400 amp buss box? We talk a lot about doing it for smaller boxes, is there a reason it won’t work here?
Jay Peltz power > On Oct 17, 2019, at 1:30 PM, Glenn Burt <glenn.b...@glbcc.com> wrote: > > > Hi Jeff, > > Seems to me if allowed in your jurisdiction, you might be best served by > installing a new 200A fused service disconnect ahead of the existing main > service panel. Or even a 400A one to allow for additional work inside (CT’s), > then perform a supply side connection in it. Some manufacturers of switchgear > have an option for lugs that accept multiple conductors, so no piercing of > conductors needs to happen. > > Good luck, > Glenn > > From: RE-wrenches <re-wrenches-boun...@lists.re-wrenches.org> On Behalf Of > Jeff Clearwater > Sent: Thursday, October 17, 2019 3:20 PM > To: RE-wrenches <re-wrenches@lists.re-wrenches.org> > Subject: [RE-wrenches] SolarReady Service Panel vs adding Supply Side > connection? > > Esteemed Wrenches, > > I am in need of changing out an existing 200 Amp service entrance in order to > accommodate a bus capable of handling a a 200 Amp Solar backfeed (41 KW > system) . > > PG&E is upgrading the transformer to handle the backfeed but when I proposed > a Siemens SolarReady 400 Amp service entrance they couldn't approve it cause > since the building is a shop - they classify it as commercial and require a > panel that can handle CTs when there is a 400 Amp service involved. > > Anyone else faced with this have solutions? What is the cheapest equipment I > can provide to satisfy all requirements? > > We don't need to upgrade the existing 200 amp service entrance equipment for > load purposes - only to meet the bus requirements of backfeed. > > Would it be cheaper and easier to use the existing (or new) 200 Amp > residential panel - not call it a 400 Amp upgrade but simply add a 200 Amp > Supply Side Connection? Suggested equipment to do that in the most > economical manner? > > Any help well appreciated! > > Jeff > > > > > > > > > -- > ~~~~~~~~~~~ > Jeff Clearwater > Village Power Design > linkedin > www.villagepowerdesign.com > cell - 413-559-9763 > ~~~~~~~~~~~~~~~~~~~~~~~ > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: RE-wrenches@lists.re-wrenches.org > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org >
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