Hello all, I work with speed drives, they are an inverter, an abrupt change in load will result in a voltage spike. I have never measured or even tried this event on an FX inverter but it would not surprise me. The inverter is taking load charging the battery then it changes to supplying load from the battery. Perhaps a ramp to load would prevent this from happening. Magnum used to have an AC dump load controller. Also check with Midnight as to a MOV that clips at 260 volts?
On Tue, Mar 19, 2019 at 8:25 AM <drake.chamber...@redwoodalliance.org> wrote: > Hello Wrenches, > > We have an Outback VFX3648 inverter AC coupled to a Stirling Generator. We > use an Outback autotransformer to get the 240 V needed to match the > Stirling. The Stirling generator must run continuously, as it is difficult > to start up after a shut down. > > The system works flawlessly for many hours. At some point, usually when > the dump load kicks on, the generator shuts down on a high voltage error. > High voltage is about 264 V. We have never seen voltage that high on the > system. > > We replaced the control board on the inverter, and the output voltage > appears very stable. The Stirling people say that the Outback must be > putting out high voltage spikes that are so brief that we will not be able > to see them with a voltmeter. > > Can an Outback inverter create such spikes? > > Thanks, > > Drake > > > > > > _______________________________________________ > 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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