There will be troubleshooting with this design. Probably easier to use it up and redesign. If my name was on the inheritance,
I would do it now or at the minimum fuse the strings. On Mon, 23 Jul 2018 12:26:32 -0400, Chris Schaefer wrote: And it's not a bad idea to add a shunt in each string for trouble shooting down the road. Christopher On Mon, Jul 23, 2018 at 11:24 AM, Steve Higgins wrote: I would at least rewire them like this... Steve Higgins ⋅ Technical Services Manager t +1.902.597.4020 m +1.206.790.5840 f +1.902.597.8447 e [email protected] [3] ------------------------- CONFIDENTIALITY: The information transmitted herein is intended only for the addressee and may contain confidential, proprietary and/or privileged material. Any unauthorized review, distribution or other use of or the taking of any action in reliance upon this information is prohibited. If you receive this email in error, please contact the sender and delete or destroy this message and all copies. ------------------------- On Mon, Jul 23, 2018 at 7:24 AM Jerry Shafer wrote: Dave Its a good idea to think of batteries the same way you do PV Modules. Any time you have more then two strings they get individual fuse protection, this is also good for diagnoses purpuses too. The current installation has no protection, safety and l would change it. As far as operation goes it works but thats not a exceptable reason to leave it that way is. Jerry On Mon, Jul 23, 2018, 6:56 AM Dave Tedeyan wrote: Since we are on the topic of bad battery practices... I may be fixing up a system that was both designed and installed very poorly. They have a 24V Outback VFXR inverter, and ten 12V AGM batteries wired into 5 parallel strings. I know that is a bad idea, but since they already have the equipment, are there any safety issues by re-using this equipment? It is for a grid tie battery backup system that will remain in float most of the time. I assume that the batteries will not last particularly long, but is there any harm in using them and then just getting new batteries once they fail? Stringing is shown in the attached picture. Cheers, Dave -- Dave Tedeyan SENIOR ENGINEER TAITEM ENGINEERING, PC 10 Verizon Lane, Lansing, NY 14882 Voice: (607) 930-3481 x6 www.taitem.com [11] _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] [12] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [13] List-Archive: http://www.mail-archive.com/[email protected]/maillist.html [14] List rules & etiquette: www.re-wrenches.org/etiquette.htm [15] Check out or update participant bios: www.members.re-wrenches.org [16] _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] [17] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [18] List-Archive: http://www.mail-archive.com/[email protected]/maillist.html [19] List rules & etiquette: www.re-wrenches.org/etiquette.htm [20] Check out or update participant bios: www.members.re-wrenches.org [21] _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] [22] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [23] List-Archive: http://www.mail-archive.com/[email protected]/maillist.html [24] List rules color: #1f497d;">Chris Schaefer's Tel/Fax 585-229-2083 or Cell 585-748-1870 5115 South Hill Road ~ Canandaigua New York 14424 _www.solarandwindfx.com [28] ~ E-mail: [email protected] [29]_ Thomas Jefferson, the author of our great Constitution, once said, "democracy" will cease to exist when you take away from those who are willing to work and give to those who would not." Links: ------ [1] mailto:[email protected] [2] http://www.rollsbattery.com [3] mailto:[email protected] [4] http://www.facebook.com/RollsBattery [5] http://www.twitter.com/RollsBattery [6] https://www.youtube.com/user/RollsBattery [7] https://www.linkedin.com/company/rolls-battery-engineering [8] http://www.instagram.com/RollsBattery [9] mailto:[email protected] [10] mailto:[email protected] [11] http://www.taitem.com/ [12] mailto:[email protected] [13] http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [14] http://www.mail-archive.com/[email protected]/maillist.html [15] http://www.re-wrenches.org/etiquette.htm [16] http://www.members.re-wrenches.org [17] mailto:[email protected] [18] http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [19] http://www.mail-archive.com/[email protected]/maillist.html [20] http://www.re-wrenches.org/etiquette.htm [21] http://www.members.re-wrenches.org [22] mailto:[email protected] [23] http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [24] http://www.mail-archive.com/[email protected]/maillist.html [25] http://www.re-wrenches.org/etiquette.htm [26] http://www.members.re-wrenches.org [27] http://webmail.sti.net/http:www.solarandwindfx.com [28] http://www.solarandwindfx.com [29] mailto:[email protected]
_______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://www.mail-archive.com/[email protected]/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
