[RE-wrenches] finding array ground faults

Chris Mason cometenergysystems at gmail.com
Wed Feb 6 05:24:12 PST 2013


Seperate the strings, test the voltage to ground, that will tell you the
faulty string and where the fault is. The voltage to ground divided by the
Voc should tell you how many strings away the fault is.


On Wed, Feb 6, 2013 at 1:57 AM, Marco Mangelsdorf <marco at pvthawaii.com>wrote:

>  Hoo boy....I’ve got a tough one here.  Trying to troubleshoot an array
> ground fault with a system that has 14 strings mounted on a metal roof with
> the whole roof and metal framed building being common to ground.****
>
> ** **
>
> Can anyone recommend any diagnostic tools out there to troubleshoot and
> locate ground faults?****
>
> ** **
>
> Thanks,****
>
> marco****
>
> ** **
>
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-- 
Chris Mason
President, Comet Systems Ltd
www.cometenergysystems.com
Cell: 264.235.5670
Skype: netconcepts
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