Need to know (and understand) grounding the system
As I whittle down the list of things that confuse me, I need to ask about grounding this set up. Someone mentioned in one of my previous posts that grounding had not been mentioned yet. My grounding knowledge is pretty limited from some of the posts I've read on this forum, so bear with me. My experience with grounding is with the main ground rod in the half dozen re-hab houses my wife and I have worked on and my 40 years as a welder. That's basically grounding my work to with the machine's ground lead, and rarely grounding the machine to earth ground if it's an indoor grid fed welder.
Though I thought I knew 'enough' before I started this project, I'm apparently pretty ignorant of the subject. Up until now, I thought I'd need to have a ground rod at each of the arrays, one at the charge controllers that would also ground the batteries, and then somehow ground the inverter, disconnects and breakers to that. From what I've read here, I'm way off. So I re-read the manual for my Trace SW5548 inverters, DC disconnect and AC disconnect. It hasn't helped much. So, with my system of 7680w of panels, two combiner boxes for the arrays, two MS Classic 150's, two Trace Xantrex SW5548 inverters, a Trace DC disconnect and a trace T-240 AC disconnect, what do I need per grounding?? My head is spinning (and aching) from what I've read about different types of grounding, neutral and "bonded/non-bonded ground to neutral". Slowly but surely I'm catching up on this stuff, but it ain't easy for a geezer like me. (And I thought I was pretty intelligent- until I got here!) Thanks for any help on this subject. Please be aware that I'm not a master electrician. Just an old Ironworker. Lee
"Knowing is not enough, we must apply. Willing is not enough, we must do." Goethe
2006 Trace Xantrex power panel, (3) SW5548 inverters- 2 NOS Trace's (1999) and 1 Trace/Xantrex 2006 for back up (came with power panel. et al), Xantrex DC/disconnect, Xantrex AC disconnect/bypass, (3) C40 PWM charge controllers- 2 NOS, one used. (8)Evergreen Solar 120w (960w), 8k LG Neon 2, (25) 320w, Bergey XL.1 1.5k genny, Air X 400 genny (came with used system), 48v Interstate Workman batts (now frozen/toast), (2) Montana Solar adjustable Top of Pole 12 array racks, (2) Midnite Solar MSPV 4 combiner boxes, (2) Midnite Solar Classic 150's (one an SL), SOK LiFePo stack of 500ah and one nice Ozark hilltop to set them all on.