Unexpected Behavior of my system.
bigbillsd Registered Users Posts: 24 ✭✭
Here is my system specs.
120v system 2800watt MSW Inverter supplying most 120 volt outlets in my RV from my 520 AH LA batteries. Batteries are serial/parallel connected Crown 260AH 6v LA batteries. Inverter connected to battery bank by 4/0 5' cables.
Solar side. 4 each 160w panels series connected to a 100/50 Victron MPPT controller. 35' of 10 gauge wire from panels to controller, 6 gauge wire of 12" from controller to 4/0 Battery cables.
When in full sun controller is putting out 33 amps, My house is using about 11 amps to power everything plugged in most of the time. Bogart shows about 22 amps going into the battery bank. That seems to be right 33 - 11 is about 22 amps what is showing is going into the battery bank thru the Trimetric Shunt.
What I don't understand is if I use the toaster (85 amps) the power from the controller goes down to almost nothing. And around then the 50 amp breaker between the controller and Batteries (on the 12" 6 gauge wire) trips.
All I can guess is the Inverter is trying to suck 85 amps out of the controller (which is a 50 amp controller) And that blows the breaker?
Do i need something between the controller and inverter to prevent that? If that is what is happening...
4 each Renogy 160w Solar Panels mounted flat on RV roof, Serially connected @ ~80v, Victron 100/50 MPPT controller. 520AH LA batteries @ 12volt, 2800w PSW Magnum Inverter. Bogart Trimetric.