Wrenches,
A customer dropped off an unusual PV module a couple days ago. It's not
a design that I'm familiar with. I'm hoping that the vast wealth of
distributed knowledge contained in the RE-Wrenches may recognize it and
explain its purpose.
The label looks like a shiny piece of foil, but
Kent,
Does it have jumpers that would lower the current and double the voltage?Maybe
unbridged and still attached? I have a dozen Solec modules that were either 12
or 24 volt nominal output.It has been a long time since I was in the J boxes
but it seems like they may have looked as you are
Nathan,
There are no jumpers, each j-box has a single terminal. It has 4 square
multi-crystalline cells, a 2 bronze colored frame, and measures 17.5 x
42; just a little smaller than a MSX-60.
Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com
On 3/24/2012 10:26 AM, Nathan
Kent,
I had modules like those back in the early 1990s, when I first went off
grid. They are designed to be wired in sets of three for 12V nominal,
18Voc. If the EVA encapsulant is a bit browned it is probably leftover
from the Carrizo project, the largest of its time. The Carrizo project
Hilton,
That description sounds like some old modules I used to have. I thought they
were from the ARCO project. Same circumstances I think. As I recall the modules
were Tri Lams (not sure on the proper name for them) but they were also 3 in
series for 12 volt nominal. At least the ones I had
Allan,
Your right about the modules from Carrizo being made by Arco. And
weren't they mono-crystalline? Three of these modules in series would be
30 cells and not enough voltage for charging a 12-volt battery. But I
think that's the biggest similarity to a Quad-Lam.
Kent Osterberg
Blue
These are beginning to have interconnect failures which I am able to repair. Luckily my clients aren't too demanding.Just a bit of history/reminiscing- the "unusual module" is clearly not one of these.
Original Message ----
Subject: Re: [RE-wrenches] Unusual Module
From: Kent
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