Hey guys
I recently installed a multiple inverter system. 2-2000 kw fronius inverter. 70 amp MLO sub with 2 double 15. 30 amp main pv breaker. 200 amp main, buss. One of these inverters is ground faulting and blowing fuse. I have 2 strings per inverer. When testing VOC on strings of blown inverter with GFDI fuse removed I get half the VOC on pos and negative when tested to ground. I see no damaged or frayed wires and VOC normal. Any ideas?
I recently installed a multiple inverter system. 2-2000 kw fronius inverter. 70 amp MLO sub with 2 double 15. 30 amp main pv breaker. 200 amp main, buss. One of these inverters is ground faulting and blowing fuse. I have 2 strings per inverer. When testing VOC on strings of blown inverter with GFDI fuse removed I get half the VOC on pos and negative when tested to ground. I see no damaged or frayed wires and VOC normal. Any ideas?
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