Our grid tie system is 32 - 400w, 10 amp panels tied together in 4 - 8 panel strings. The DC produced first goes through a DC breaker box with 4 - 16 amp breakers, then to the Inverter. No combiner box....each string has it's own breaker
The other day, I noticed that string #3's breaker was off. Reset it and everything fine. I had been gone for 2 days and know all breakers were functioning before I left.
I have had this setup running since late January of this year and it's the first time a breaker went off. Any ideas what may have caused this? The 2 days we were gone, I do know my area had several lightning storms. It doesn't appear that we had the grid go down (no resetting dig. clocks, etc.)at any time.
The other day, I noticed that string #3's breaker was off. Reset it and everything fine. I had been gone for 2 days and know all breakers were functioning before I left.
I have had this setup running since late January of this year and it's the first time a breaker went off. Any ideas what may have caused this? The 2 days we were gone, I do know my area had several lightning storms. It doesn't appear that we had the grid go down (no resetting dig. clocks, etc.)at any time.
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