help connecting inverter to batteries
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Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister -
on a side note, what type of wire is typically used for large cable runs to the inverter? 4/0 THHN would seem to be too stiff to be practical.Comment
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Why not use thhn
The batteries and inverter are generally immobile so a stiff wire is not a problem.NABCEP certified Technical Sales Professional
[URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]
[URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)
[URL="http://www.gaisma.com"]www.gaisma.com[/URL]Comment
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THHN only indicates the cable insulation type, not how flexible the wire is. THHN is a thermal plastic insulation is suitable for use in wet or dry locations at temperatures not to exceed 90MSEE, PEComment
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It also takes special connectors designed for thin strand wires to properly terminate them. Your basic lug on an inverter etc is not designed for that type of cable therefore using it would void the UL listing.NABCEP certified Technical Sales Professional
[URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]
[URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)
[URL="http://www.gaisma.com"]www.gaisma.com[/URL]Comment
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If the inverter has term strip that uses a screws to fasten a ring or spade terminal, then just use a terminal connector made for flexible cable.MSEE, PEComment
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[QUOTE=Sunking;33628]THHN only indicates the cable insulation type, not how flexible the wire is. THHN is a thermal plastic insulation is suitable for use in wet or dry locations at temperatures not to exceed 90Comment
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not LB's, but in a similar fashion. the j-box has a 90 connected directly to it, and then a large 90 sweep w/ liquidtight. one coming into the box and one going out...so i can work the 'tight' 90's from the j-box, one at a time (pull excess through one and then push through the other). the large sweeps shouldn't be an issue, and because of the j-box, the tight 90's shouldn't really be either, but more flexible wire would always make it a bit easier.Comment
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