I’ve had cases where a UPS would cycle back and forth between trying to run off the generator and off batteries, each time it would try to run off the generator it would bog down the generator and the voltage would drop and the UPS would sense undervoltage and kick back to batteries and it would just thrash like that. That was years ago, the last time I tried to use a conventional generator. Doesn’t sound like your problem though.
It’s also possible the generator has a problem, needs a tuneup or something. Generators often sit with stale fuel in them, get overdue for oil changes, etc. Can it run a load close to its rated capacity OK, like 6000 watts of electric heaters or something? Can it run a sump pump? I had a brand new generator once that would run but not with a significant load, turns out it had a spark plug cracked in shipment. From: AF <af-boun...@af.afmug.com> On Behalf Of Josh Luthman Sent: Monday, September 21, 2020 12:14 PM To: AnimalFarm Microwave Users Group <af@af.afmug.com> Subject: Re: [AFMUG] Generator power supply questions So you're thinking the 110v is probably its output and not relevant? Carb issue could be causing it to bog down like that and it gets resolved by closing the choke a bit? It's labeled for 6250 running watts and if I'm doing ~1500 that seems odd that it'd be an overloading issue. Josh Luthman 24/7 Help Desk: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Mon, Sep 21, 2020 at 12:24 PM TJ Trout <t...@voltbb.com <mailto:t...@voltbb.com> > wrote: or maybe the 110v side is overloaded, maybe try running @ 220 On Mon, Sep 21, 2020 at 9:22 AM <ch...@wbmfg.com <mailto:ch...@wbmfg.com> > wrote: Sounds like you have a carburetor issue. Maybe some plugged up metering jets due to varnish. From: Josh Luthman Sent: Monday, September 21, 2020 10:13 AM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Generator power supply questions None of our generators or any one I've seen let's you adjust voltage. The ones we have are all TroyBilt-ish with Briggs engines. The UPS did switch to the generator when I lowered the choke ~10%. But it would not use the generator at full open and the generator sounded like it was bogging down. Josh Luthman 24/7 Help Desk: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Mon, Sep 21, 2020 at 11:57 AM <ch...@wbmfg.com <mailto:ch...@wbmfg.com> > wrote: But engine speed will affect voltage. At least on older units. -----Original Message----- From: Mark Radabaugh Sent: Monday, September 21, 2020 9:40 AM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Generator power supply questions Not sure what the generator is but most have the ability to adjust the output voltage and frequency. If you have the option you could just crank the generator output voltage up enough to make the UPS happy. Note that is done by adjusting the excitation voltage, not the speed of the engine. Engine speed changes frequency. (All of this assumes a traditional generator, not a inverter style generator like the small Honda’s) ark > On Sep 21, 2020, at 10:22 AM, Josh Luthman <j...@imaginenetworksllc.com > <mailto:j...@imaginenetworksllc.com> > > wrote: > > So Friday we have another 3 phase go down in the building. They unplugged > it all so that wing had nothing. > > As a precaution I start up the generator. When they're cutting the other > phases we are using I move it to the generator. The generator complains > and the UPS units don't switch over. I drop it to say 90% open choke and > the UPS switches over - but it's only 110v. I'd like to know what's going > on here. > > I have 175 feet of 10 gauge (times 2). Two circuits on the generator, two > runs of copper, two UPS. UPS is doing about 5-6 amps each. > > What can I do better? Should I? It runs but I'd like to keep it as > simple as possible to avoid "teaching someone" to lower it from full open > choke. > > Josh Luthman > 24/7 Help Desk: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > -- > AF mailing list > AF@af.afmug.com <mailto:AF@af.afmug.com> > http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com _____ -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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