[RE-wrenches] Xantrex XW 6048A unregulated during charging

[Dave Angelini Offgrid Solar]

Hmm. This does not sound good! Three phase power correct? You could try
connecting a different inverter to the generator.
Are you sure the generator is staying connected and outputting qualifying AC?
There are set-points for bulk and absorb and they are the same right?

Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridsolar at sti.net
text 209 813 0060


> Hello All,
>
> I’m working on a system with 3 Xantrex XW 6048’s that has grid on AC1
> and a 20 kw generator on AC2.  When charging from grid it regulates during
> an absorption charge at 58.2 where it should.  When charging from AC 2 -
> generator, the battery Voltage rises above 62 VDC,  but not every single
> time.  All the settings are correct, EQ is turned off, and if it
> accidentally got turned on is set at the same Voltage as the absorption
> setting.  Customer has a brand new 33 kWh AGM battery bank,  that I would
> rather not fry.  This is a battery backup system with no PV.
>
> I have checked all the temperature sensors (they seem good) and tried
> charging with them plugged in,  and with them unplugged and it doesn’t
> seem to change the situation.
>
> Has anybody else seen this happen before?  Any suggestions?
>
> Thanks very much,
>
> Jason Lerner
> Waldron Power and Light Co.
> (888) 927-2526
>
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Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridsolar at sti.net
text 209 813 0060