Re: [RE-wrenches] solid vs stranded AC vs DC

RE: 2% loss over 25 years is significant Amen. Sorta makes one wonder how they've allowed and accepted <50% efficient combustion-cycle turbine plants all these years... That's before taking transmission losses of minimum 8%. 24/7 x 365. Matt Lafferty _

Re: [RE-wrenches] XW6048 parts problem

Hi Peter, I agree with you on the XW. I'm amazed that there is no integrated battery capacity meter, plus plenty of other issues I find pretty amazing given they used to make the premier inverter and in many ways I have to say the old SW hasn't really be beaten. Also I still find the old S

Re: [RE-wrenches] solid vs stranded AC vs DC

2% loss from any resistance source over 25 years is significant. - Original Message - From: "Darryl Thayer" To: "RE-wrenches" Sent: Monday, August 03, 2009 2:04 PM Subject: Re: [RE-wrenches] solid vs stranded AC vs DC Yes, that is what the code book and my electricians handbook say

Re: [RE-wrenches] XW6048 parts problem

I would like to start a thread on AC-coupled grid tied battery backup systems. We do a fair number of GTBBSs (four to five a year) and I have gravitated from the Outback solution to the Xantrex XW solution. I am not happy with the XW product and especially not happy with Xantrex's post sales techni

Re: [RE-wrenches] XW6048 parts problem

Hi Jeff It is a major problem that it is hard to get the small bits, i don't know why they ( the big they) don't have spares we can buy. Like for all the small many different screws, nuts, washers and even the cover plates someone steps on. We know its not a custom item, but finding it a

Re: [RE-wrenches] XW6048 parts problem

Jeff: I have a spare. They are not kept in the socket but are loose in a bag. Send me your mailing address off list. I leave tomorrow for a week, so I hope I see your address before I go. William At 04:59 PM 8/4/2009, you wrote: Just completed a large residential grid/gen/solar/battery

Re: [RE-wrenches] XW6048 parts problem

Just completed a large residential grid/gen/solar/battery system using a XW6048 inverter. We are using a SunnyBoy inverter at the array and doing an AC coupled backfeed. To do this we have installed a heavy duty relay in the output of the SunnyBoy, and are using the aux. relay contacts on the

Re: [RE-wrenches] Broken Modules

Doug I've had several incidences with unusable modules, 1 with hidden forklift damage, 1 with visible hot-spots on ribbon junctions & bubbles on the back Tedlar surface. Then the one I leaned on in the middle of the top frame and shattered. That one I ate. All three modules went to a technical

Re: [RE-wrenches] Broken Modules

I have seen modules with a sheet of Plexiglas or Lexan (expensive) over the top. If you seal it with something like 'LEXAR" it might hold. That sealant skins over but does not get solid. I think you could heat and bend plexiglas to fit over the sides of the panels to keep the weather out but i have

Re: [RE-wrenches] Broken Modules

A clear acryllic polymer can be purchased at a hobby store (i.e. one that sells model airplane stuff) that is cheap and readily sprayed on the surface. It will extend a broken module's life for some time, and as Ron pointed out, they make for good gifts to schools and science clubs. Chris Daum Oa

Re: [RE-wrenches] RE-wrenches Digest, Vol 2, Issue 818

Nick, Where did you put the relay? I had problems breaking the AC out of Sunny Boy inverters. Thanks, Drake At 07:58 PM 8/3/2009, you wrote: Aloha Solar Bozos: I haven't posted here in ages, and I hope I am cutting out the appropriate stuff? Probably not, but I will give it a try.