Bill
You do need to verify that you also have No current, l see this quite a few
times where modules have failed just to find a shorted inverter or damaged
conduit where one wire overheats cause unknown and the cascade is they all
melt together and it's such a great short that voltage is near
Behalf Of Bill
Battagin via RE-wrenches
Sent: Monday, May 22, 2023 1:25 PM
To: Darryl Thayer via RE-wrenches
Cc: Bill Battagin
Subject: [RE-wrenches] Just getting old?
I went back to this array, removed all J-box covers and tested for Voc. The
majority of the PVs were ~ 9.5Voc, about 5 were ~19
Bill, I remember the warranty was not great and the ones I had
experience were not top Tier. I am thinking dumb looks are still free
and a Seventeen year old installation is going to be more free time for
you. I hope I am wrong, good luck!
Dave Angelini Offgrid Solar
"we go where powerlines
I went back to this array, removed all J-box covers and tested for Voc.
The majority of the PVs were ~ 9.5Voc, about 5 were ~19 Voc, 3 were 0
(that's zero) Voc . The diodes are in an encapsulant. The label says
Voc = 22V. Another array of Mitsubishi panels takes a dive.
Anybody
Was the inverter connected at the time of testing? If so I suspect the
inverter is loading the solar array below Vmp
On Wed, May 17, 2023 at 11:23 PM frenergy via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:
> Wrenches,
>
> I've got a call from a customer that said their
Wrenches,
I've got a call from a customer that said their (my
install) 17 year old GT system went dead. Basic stats: 23, Mitsubishi
PVMF120EC3, label says V mpp= 17.6V and Voc = 22 V; top-of-pole; SMA
SB3800U. Its one string of 23 PVs. Full sun, 75 degrees ambient during
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