Voltage output EU2 Honda <span class="highlight">generator</span>

I wouldnt think 3 volts would make any difference really. After all your house power goes anywhere from 214 to 245 volts at times.

At least it does at my place.

Carl,

I assume you turn your charger off during gennie startup?

Even inverter style gennies can spike during startup which could trip the charger into over-voltage shutdown.

Did you actually measure the 265VAC, and if yes, what was connected to the gennie at that moment?

BTW, if the sine wave becomes more square due to overload or some internal fault, the multimeter will show a higher voltage although the actual peak voltage (the one which is critical for switch mode loads such as your charger) may remain unchanged.
E.g. if the sine changes to a perfect square wave, the multimeter will show 339V, instead of 240V, althogh the peak voltages are the same in both cases namely 339V.

If the charger actually does shut down due to over-voltage on its input, for this the peak voltage needs to be higher than 339V plus some margin.
This would point to a serious fault within the gennie.

Sorry, don't know how to adjust the voltage set points on your gennie :(

cheers, Peter

It's unclear to me exactly what your problem is. You have stated that the charger will shut down if the voltage it is connected to exceeds 265V.

Are you saying that the charger is actually shutting down during charging?

If it is, then how are you ascertaining that this shut down is due to over voltage?

How do you know the generator is outputting exactly 243V? If it is (and I doubt very much if you have the means to measure RMS voltage this accurately) then this is well within the bounds of measurement accuracy and spec.

Sorry my post might appear misleading so I will state my problem another way. I think you have all collectively answered my question anyway.

I have been reading voltage on a multimeter. Perhaps this reading is not as accurate as I imagine?

In speaking with Xantrex, My battery charger will shut down once the voltage exceeds 265 volts. Currently my gennie is running fine and the charger is also running fine (this is when I measured it at 243 volts)..

I did not know that they might spike above this (255 volts) at startup. I have been starting the generator without the charger attached and things appear fine. So perhaps this was my problem?

My understanding now is that the voltage can not be adjusted and if it is playing up, repairs are similar to a new gennie anyway. Bugger that part.

Thanks everyone for the help. Carl