[RE-wrenches] PV String Over-voltage

[David Katz]

Larry,
This was an AEE product, but we no longer sell it.  It was made for us by Apollo Solar. You can check with them to see if any are still laying around.  They bypassed a module when the temperature dropped to 40 degrees F.
You could use SolarEdge inverters and Optimizers and have strings of up to 25 modules with no worry about overvoltage in cold weather.

David Katz
CTO & Founder
AEE Solar Inc
P: 707 825-1200
F: 707 825-1202
dkatz at aeesolar.com
www.aeesolar.com
From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Larry Crutcher, Starlight Solar Power Systems
Sent: Thursday, November 29, 2012 5:53 PM
To: RE-wrenches
Subject: [RE-wrenches] PV String Over-voltage

Wrenches,

I seem to recall seeing something about a device for PV string over-voltage protection by bypassing a module. I can't find any info by Goggling.

Some customers in the FAR north, ay, can see > 40° below zero with bright sun and snow reflection. I want to be able to switch off one or more modules in a string for protecting the controllers.

Thank you,

Larry Crutcher
Starlight Solar Power Systems






-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20121129/bd997962/attachment-0004.html>