For what it's worth, the Fluke is known to mistake harmonics for base frequency. I would look to borrow for a scope or at least use a cheaper meter that can accurately report the frequency. Try slowing the generator to 59 Hz to see if the inverter likes it better.
On Fri, Aug 17, 2012 at 10:24 PM, mac Lewis <maclew...@gmail.com> wrote: > Hello Wrenches, > > AC charging system specs > Onan Marquis Gold 5500 LP Model 5.5HGJAB119D generator > Heart Interface Freedom 20 Model Inverter Charger (120VAC, 100A charger, > 12VDC) > > I have a new customer who has a used Onan RV generator (as specified > above), working with a Heart Inverter charger (specified above). When the > generator is started, the Heart inverter kicks on and starts to charge, > after about 3 seconds it kicks off, then on, then off and repeats. The > voltage and frequency of the generator output look good. 120V L-N and 60-62 > Hz no load. The Heart just doesn't seem to like it after it kicks on the > charger. (Sorry, no scopemeter available) > > What is very interesting is that on the other pole of a transfer switch > connected to the AC input, is a fairly inexpensive gas generator, pull > start, on wheels etc. This puts out 108VAC at 59-60Hz. When connected to > this generator the Heart immediately latches in and will continue charging > flawlessly at 100ADC. For whatever reason, the Heart, doesn't like the > voltage waveform of the Onan generator. The Fluke 87 multimeter that I was > using to test, was catching some type of transient (frequency reading would > shoot up to 70-100Hz) when the Heart would latch into the Onan. Other that > that with my simple tools I could see no real difference between these > generators, other that the 108VAC of the gas generator. > > Any ideas, or known compatibility issues with this equipment? > > Thanks > > -- > > > > Mac Lewis > > * > > "Yo solo sé que no sé nada." -Sócrates > * > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > -- Chris Mason President, Comet Systems Ltd www.cometenergysystems.com Cell: 264.235.5670 Skype: netconcepts
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