Drake: You should be able to connect to a 120/240 split phase feeder. Avoid the stinger. I have done it with FXRs , works just fine.
Wm On Tue, Jun 6, 2023 at 8:11 AM Drake Chamberlin via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hello All, > > We are looking for a transformer to connect Sol-Ark inverters to an open > delta service. The Sol-Ark can only connect to a Wye configuration. > > We found one which the supplier says will do the job. It is an MGM, 240 > Delta to 208Y/120 Volt, 3-Phase. > > The supplier says this will derive a neutral which can be grounded for a > solid neutral connection. > > My concerns with what we have found so far are: > 1) How much efficiency will be lost due to connecting to an open delta? > 2) Will the derived neutral really be sufficient? > 3) The cost of the unit we found is high. Does anyone know of a source > for economically priced transformers. > > Thank you, > > Drake > > Drake Chamberlin > Athens Electric LLC > Ohio Electrical Contractor’s License 44810 > CO Master Electrician’s License 4526 > NABCEP Certified PV Installation Professional > > > > > -- > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > 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 > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ > 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 > > -- William Miller Miller Solar.com 805-438-5600 www.millersolar.com
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