[RE-wrenches] HV Module Testing

[drake.chamberlin at redwoodalliance.org]

That is very helpful. If I do the high voltage test, can I test from
both positive to the frame and negative to the frame? 

Thanks,

Drake 

----- Original Message -----
From: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
To:"RE-wrenches" <re-wrenches at lists.re-wrenches.org>
Cc:
Sent:Wed, 10 Apr 2019 10:35:50 -0700
Subject:Re: [RE-wrenches] HV Module Testing

Drake
I have performed test for manufactures and you must keep the test
voltage under the max rated voltage of the module, we have a bunch of
tests we do but in short, you need to see the modules up close, look
at the edges and back sheets look for green, brown or black spots, you
need to do testing both dry first then wet if it is a ground fault
concern. Most of the time the visual will find the issues but you
still want to verify what you think you see. Make sure you look at the
wiring to and from, the combiner box(s) or even the inverter(s).

On Wed, Apr 10, 2019 at 8:31 AM Drake
<drake.chamberlin at redwoodalliance.org [1]> wrote:

 Hello Wrenches, 

 We are troubleshooting an array of Orion modules, either 230s or
250s. The array is showing a ground fault. 

 We would like to test these modules with an insulation tester? 

 We would like to apply 500 V or 1000 V to each the + and – and test
resistance to ground. 
  
 Is this practice safe for individual PV modules? Is there anything I
should be aware of before attempting this?

 Thanks,

 Drake

Drake Chamberlin
Athens Electric LLC
 OH License 44810
 CO License 3773
 NABCEP Certified Solar PV 
 740-448-7328
http://athens-electric.com/ [2] 

 _______________________________________________
 List sponsored by Redwood Alliance

 List Address: RE-wrenches at lists.re-wrenches.org [3]

 Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
[4]

 List-Archive:
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
[5]

 List rules & etiquette:
www.re-wrenches.org/etiquette.htm [6]

 Check out or update participant bios:
www.members.re-wrenches.org [7]

 

Links:
------
[1] mailto:drake.chamberlin at redwoodalliance.org
[2] http://athens-electric.com/
[3] mailto:RE-wrenches at lists.re-wrenches.org
[4]
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
[5]
http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
[6] http://www.re-wrenches.org/etiquette.htm
[7] http://www.members.re-wrenches.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20190410/0b07c132/attachment.htm>