Re: [RE-wrenches] AGM discrepancy

I'd second that. Let somebody with a 12 v system play with the pair of gray ones. R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 8/15/2014 5:19 PM, m...@hurshtown.com wrote: I would send them back. If used, I w

Re: [RE-wrenches] AGM discrepancy

I would send them back.  If used, I would not install them along with batteries of differing age, or even from a different batch. Original Message Subject: [RE-wrenches] AGM discrepancy From: Drake Date: Fri, August 15, 2014 10:57 am To: RE

Re: [RE-wrenches] More Sunny Island power problems

Gradient Cap_mini Lic 773985 millersolar.com 805-438-5600 Steve: Can the Sunny Island be programmed to not transfer to AC2, but only charge batteries? If so, how is this done? William From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wr

Re: [RE-wrenches] More Sunny Island power problems

Hi Steve Jefferson, I was under the impression that frequency shift was a secondary fail-proof way to ramp back the Sunny Boys but the communication could provide the ramping function before frequency shift kicked in. Maybe I made that up. If that is the case, I've wasted a lot time and material g

Re: [RE-wrenches] More Sunny Island power problems

Steve: Thank you for the information. Right on target. We have always known that you don’t want two UPS units in series and that is what you basically have with a UPS plugged into a Sunny Island system. I had not really thought of it this way. I will be looking at the SD information

Re: [RE-wrenches] More Sunny Island power problems

Afternoon William, The communication is there to send the signal to the Sunny Boys to go into off-grid mode, when the grid fails. Frequency shift still occurs when current is not needed from the SBoy’s. I typically would not recommend that a UPS circuit be placed in the protected loads panel. T

Re: [RE-wrenches] More Sunny Island power problems

Mac: I will review the data. Thanks! William Gradient Cap_mini Lic 773985 millersolar.com 805-438-5600 From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mac Lewis Sent: Friday, August 15, 2014 9:46 AM To: RE-wrenches S

Re: [RE-wrenches] More Sunny Island power problems

William, As far as I understand, the communication is supposed to take away the need for frequency shift. Have you pulled the data off of the Sim card and looked for frequency shift? On Aug 15, 2014 10:24 AM, "William Miller" wrote: > Friends: > > > > A Sunny Island mini-grid system I am maintain

[RE-wrenches] More Sunny Island power problems

Friends: A Sunny Island mini-grid system I am maintaining also does not play nice with a UPS unit. So much so that the system reportedly fried a Furman UPS unit yesterday! This should not be! The UPS unit is supposed to protect downstream equipment and should be able to protect itself a

Re: [RE-wrenches] High specific gravity

Hey guys, just thought that I'd chime in here if you don't mind. High SG's are a result of a few things... 1. The most common... Adding acid or electrolyte 2. Overcharging, or too long of 3. Overheating.. During the charge cycle if you have overheating cells and you get over 120 F ballpark (most

[RE-wrenches] AGM discrepancy

Hello Wrenches, A batch of Full River L-16 DC 400-6 batteries came in, which were purchased at a very good price from a distributor. Of the 16 ordered,14 came in blue cases and were labeled 415 AH and 2 came in grey cases and were labeled as 400 AH. Calling my distributor and Full River tech

Re: [RE-wrenches] DC Power Supply for powering up SMA (or similar) inverters?

You might try Greg Smith at SMA. He is one of their trainers and has used one to power up systems when traveling. Glenn -Original Message- From: "Ross Taylor" Sent: ‎8/‎15/‎2014 8:29 To: "re-wrenches@lists.re-wrenches.org" Subject: [RE-wrenches] DC Power Supply for powering up SMA (or

[RE-wrenches] DC Power Supply for powering up SMA (or similar) inverters?

Hi all, Can anyone recommend a DC power supply they've used for powering up inverters, for programming purposes? I had a custom-made one, but it finally bit the dust. It was also bulky. Size/portability is a factor. SMA's usually stellar tech support folks were (I guess, understandably) reluct