[RE-wrenches] Fwd: Re: 24 volt LiFePO4 Battery options

[Dave Angelini Offgrid Solar]

Howie, check that AC coupling is not enabled on XW+. Widen AC2 genset
specs to max. XW+ should be 60.0 hertz on inverter and sync to genset
frequency. 
Dave Angelini Offgrid Solar
"we go where powerlines
don't"
http://members.sti.net/offgridsolar/ [1]
e-mail offgridsolar at sti.net
[2]
text 209 813 0060

On Wed, 2 Oct 2019 08:52:28 -0400, Howie Michaelson 
wrote:    On a separate note, I'm having an issue with one of the XW+6848's
that are using the blueions, although I don't think the battery has
anything to do with the issue. This is a client I just upgraded from a dual
stack vfx3648. They just replaced the generator in part on my
recommendation (it was old, but also one leg was putting out 66-70 HZ,
which seemed very odd but my meter said as much and so did the XW. When we
tried to sync the inverter to the old generator to charge the batteries,
the inverter wouldn't pick up the generator, which is when I discovered
high inverter output HZ. I talked to Schneider and they convinced me that
the generator caused the inverter to mimic the voltage/frequency
characteristics, so even though the inverter never packed up the generator,
once the inverter saw the gennie output, it got stuck at this higher
frequency and stayed there until I power-cycled the inverter. Sounded
plausible to me. However, after having just replaced the generator to a
14kW Kohler, the client tried to get the generator to pick up that new
power output, and the inverter frequency ended up sky high again.
Unfortunately, I was not on site (headed there now) to see up close what is
going on, but it seems too coincidental that the new genny would be causing
the high frequency. Just wondering if you've heard of any similar
circumstances. I'm not sure I trust Schneider support to suss out the
problem accurately, hence I am asking you. I will try them when I get to
the site, just looking for anyideas on you part. Thanks, Howie 
           
          Howie Michaelson
SUN CATCHER
 NABCEP Certified Solar PV
Installer(tm)

Solar Electric Systems Sales ">802-272-0004            

 
On Fri, Sep 27, 2019 at 2:57 PM Dave Angelini Offgrid Solar  wrote: 


Discover AES also gives redundancy if you use 2 or more of their 6.5KWH
batteries. The reason I use them is their is no configuration. Plug in
xanbus and AES bus and some battery cables and you are done. See
screenshot. They work with Outback but you need to program setpoints and
wire an external Battery monitor if you want Soc. 
Dave Angelini Offgrid
Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
[4]
e-mail offgridsolar at sti.net [5]
text 209 813 0060

 
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