I think I have something wrong in my system and I can't figure out what it is. I've had my inverter cut out and restart a few times a day due to a high voltage condition. Here's the specs on my system.
24V system
SanTan Solar T Series 250W panels in a 3x3 series/parallel configuration: should be 112.8V and 26.55A https://store.santansolar.com/product/santan-solar-t-series-250w/
EPEVER 40A BN Series SCC
2 Enjoybot 100AH 12v batteries.
Giandel 24v 3000w pure sign inverter
High voltage cutout only happens with the SCC connected and mid-day.
I reduced the max voltage through the EPEVER controller (29.2v) and still had the inverter cut out due to high voltage. Through searching it seems that the EPEVER controller can sometimes have issues with sun hitting panels as clouds move away and cause an overvoltage so the recommendation there was to move to a Victron.
I took the recommendation and swapped the EPEVER SCC for a Victron smart solar 150/45 and the inverter still had an overvoltage condition of 32.93V (verified thanks to Victron's data logging). I know I'm way over paneled but I'm still within the Voltage specs of both SCC's ability to handle it. I'm in the PNW so planning for the grey days is a must.
What am I missing?
24V system
SanTan Solar T Series 250W panels in a 3x3 series/parallel configuration: should be 112.8V and 26.55A https://store.santansolar.com/product/santan-solar-t-series-250w/
EPEVER 40A BN Series SCC
2 Enjoybot 100AH 12v batteries.
Giandel 24v 3000w pure sign inverter
High voltage cutout only happens with the SCC connected and mid-day.
I reduced the max voltage through the EPEVER controller (29.2v) and still had the inverter cut out due to high voltage. Through searching it seems that the EPEVER controller can sometimes have issues with sun hitting panels as clouds move away and cause an overvoltage so the recommendation there was to move to a Victron.
I took the recommendation and swapped the EPEVER SCC for a Victron smart solar 150/45 and the inverter still had an overvoltage condition of 32.93V (verified thanks to Victron's data logging). I know I'm way over paneled but I'm still within the Voltage specs of both SCC's ability to handle it. I'm in the PNW so planning for the grey days is a must.
What am I missing?