I work with gen set and inverter integration all the time, unless you have an inverter beginning to fail, it has to be the gen set, when l run load banks it for 2, 4 hr. or even longer and the voltage may only be checked at intervals and not continues. Use a fluke or other high quality meter set to min max and test all the integration, now the inverter may be pushing back spikes. You should also be able to tune in voltage at the gen set regulator, it can set volts and freq. Fun times
On Fri, Jan 3, 2025, 6:17 AM Jim Gowdy via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hi all, > I need some help with a generator overvoltage troubleshoot. I'm > working on an outback offgrid system that consists of 2 x Radian GS8048a, 1 > x MATE3S controller, 1 x FM 80 charge controller, 1 x 55kw single phase > propane AC cummins generator, about 4kw of solar *not sufficient enough to > keep up with the load, and 24 x 4v Rolls batteries series/paralleled to > make 48v. The generator was rebuilt and the batteries replaced about a > year ago and since then, the generator has been faulting due to > overvoltage. I had help and first found that the MATE needed calibrating > so that was done, but the generator still was faulting. I found changing > the AC Input Charging from 30a to 20a seemed to work. I put a power > monitor on the generator output and found that, with the AC Input Charging > set at 30a, noticed that there was a voltage spike up to 300+V at about a > 70a draw. The generator company put a load bank on and verified the > generator may not be at fault and the problem is after the generator. Has > anyone encountered a problem like this and have suggestions? I've attached > a PDF with a timeline of what I've done for troubleshooting so far. > > -- > Jim with Gowdy Electric > Cambria, Ca 93428 > business 805 927 2630 > cell 805 975 5279 > _______________________________________________ > 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 > >
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