Re: [RE-wrenches] Fastening of Backfed Breakers

Hi Jason I would see if your inverter company has an engineer that can send a letter or pay Bill B to write one. I don't see how you can get out of his logic of yet another well written piece of code. Jay Peltz power. Sent from my iPhone > On Nov 18, 2015, at 5:29 AM, Jason Szumlanski >

Re: [RE-wrenches] Fastening of Backfed Breakers

This has reached a new level of misinterpretation. See my response and inspector's further misinterpretation regarding fastening of breakers. I'm at a loss of what to do now. I would just have the backfed breakers fastened, but the clips can't be installed on adjacent breakers, so it's impossible

Re: [RE-wrenches] Mixing battery sizes in the same bank

Maybe a bit off point, but when ever I install anything over two strings (and sometimes even then), I set up each string on it's own OCPD / Disco. like in the marine industry. Sometimes even with a trimetric on each string. I have one Off Grid customer (yes, a bit of a character, but smart enough

Re: [RE-wrenches] Friend with system needs help

I have these same modules at my home (circa 2002 i believe). I have found issues with two modules (out of 30 mods) that had intermittent connections due to the spot welds opening on the tabs coming from the back sheet, going to the diodes in the j box. I fixed it with very small stainless machine

[RE-wrenches] Friend with system needs help

Afternoon wrenches, I have a friend who I helped install second hand modules onto a pergola structure at their home. The system is as follows: 44 - Siemens SP-150 1 - SMA SB6000US-12 (XFMR unit) Since install, they have not produced half of what they should be. I have tested the diodes and

[RE-wrenches] Mixing battery sizes in the same bank

Just when I thought I was becoming a battery guru, this came up: A customer asked me if he could purchase two different size 12 volt Lifeline (Concorde) AGM batteries and connect them in parallel. Of course I told him this was a bad idea and all his parallel batteries should be same make, age,

Re: [RE-wrenches] Friend with system needs help

Wrenches Have you looked at cell fractures, l just replaced a module running on enphase and it had fractures in the cell VOC was fine but under load there was just over 50% power. I have also had ribbin connection fail, you might be able to see burn marks un the back of the modules. Jerry On Nov

Re: [RE-wrenches] Friend with system needs help

Hi steve. Is the output from each string of 11 the same? Have you tried ruining 1 string at a time? Jay Sent from my iPhone > On Nov 18, 2015, at 11:14 AM, Steve Jefferson > wrote: > > Afternoon wrenches, > > I have a friend who I helped install second

Re: [RE-wrenches] Mixing battery sizes in the same bank

The battery engineers at the outfit that first taught me how to install using buss bars cabling individual series strings in parallel to the buss bars were also adamant that using that configuration would allow for different size and capacity batteries to be installed in the same bank. I

Re: [RE-wrenches] Mixing battery sizes in the same bank

Even if it works for short term testing, I would imagine long term issues that would require more frequent equalization, and shorter cycle life. R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 11/18/2015 5:09