[RE-wrenches] Outback Radian Generator Charging

[William Miller]

Amos:



At the risk of stating the obvious:  The batteries have to be ready to
accept maximum charge.  They need to be in good condition and fully
discharged.  Max charge amps will occur only briefly then the charge rate
will start to taper.  Your charging settings need to be correct including
temperature compensation.  Any other charge inputs need to be disabled
during testing, such as solar, wind or hydro.



Check for THD on the generator output.  If the waveform deviates much from
sinusoidal the inherent power will be reduced.  Radians have been known to
instigate high THD rates on generator feeds during charging, especially in
Generator input mode.  Trying the Support mode is good advice.



(We had this case
<https://millersolar.com/MillerSolar/case_studies/25_GFI%20Tripping/GFI_Tripping.html>
a while back.  Recently a random person called to relate he had similar
problems and found our case study.  He installed a capacitor (20mFd?) on
the generator leads and the THD decreased significantly.  I have not tried
this.)



William



Miller Solar

17395 Oak Road, Atascadero, CA 93422

805-438-5600

www.millersolar.com

CA Lic. 773985





*From:* RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On
Behalf Of *Amos Post via RE-wrenches
*Sent:* Wednesday, October 25, 2023 12:23 PM
*To:* RE-wrenches
*Cc:* Amos Post
*Subject:* [RE-wrenches] Outback Radian Generator Charging



Hello wrenches,



We just installed an GS8048a Radian build with Mate 3SL controller (no
Optics).  We are having some with charging from the generator, as the
generator charging seems to be limited to about 4500Watts +/- (20amps AC)
when charging through the Radian.  It is a Kohler 8.5RES generator and we
have the AC input limit set to 30amps and the Gen input set to 30amps.  The
house load is only about 200Watts when we are charging.  The system is at
2200ft of elevation, but I don’t know if that makes enough of a difference.

The Gen output voltage seems pretty good and holds around 234V-236V while
charging.



Any thoughts as to why it may be limiting would be appreciated.



Thanks,

Amos



       Amos Post
   Integrity Energy
  W 802.763.7023
   C 802.291.2188
    ienergyVT.com <http://www.ienergyvt.com>

        Facebook <https://www.facebook.com/integrityenergyllp?ref=hl>
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