If you disconnect the leads to the Benny from at the inverter do you still have this condition. I had a battery charged supply (ac) in the same conduit as the remote start and the transient voltage would be enough to signal z start up. Your issue is a little different but it might still be transient Jerry On Feb 16, 2014 7:02 PM, "john" <[email protected]> wrote:
> Wrenches, > I have an off-grid installation with an Outback Radian using a Kohler > RES 13 for backup. The generator has had problems from day one and has had > control boards replaced and other work done on it. This system started out > with a Magnum 4024AE but was undersized for the loads and battery size so > we upgraded to the Radian. The current problem is the generator running > erratically (frequency and voltage) and running rough. The Kohler > repairman said that the problem is that the inverter had damaged the > generator with a measured 12 VAC at the inverter side of the AC IN breaker > when the generator is off. When I arrived, we started the generator with > the MATE 3 and it worked fine for about 10 minutes charging at 4.5 kw and > then the engine started running erratically. The frequency readout on the > MATE 3 ranged from 56 Hz to 67 Hz and the voltage was sometimes steady at > 238 and at times varying from 236 to 244. The MATE 3 showed several manual > starts previously where the Initial voltage was 277 briefly (1 second) and > then leveled out and locked on. Eventually the generator shut down with > Error 13. We also had it fail to start with Locked Rotor error. I did > measure 3.1 VAC on the AC out bus of the inverter when the generator was > stopped. Is that small voltage present normal for the Radian and is there > any way that could affect the generator? When I set the MATE 3 to DROP to > disconnect the charging, we could still read the hz and Voltage at the bus > and the erratic behavior continued. I think there are serious problems > with the generator but the Kohler tech says it is the inverter interference > . When we started the generator manually with the input breaker off, it > ran erratic and eventually shut down. > > The customer wants the generator guy and myself there tomorrow to figure > out how to fix it. I say a new generator might take care of the problem > but the customer doesn't want to hear this. > Any ideas? I have dealt with lots of generators and to me this seems like > a worn out genny. > > John Blittersdorf > Central Vermont Solar & Wind > > > > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Change email address & 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 > > >
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