[RE-wrenches] large array conduit runs

[William Miller]

Darryl:

You make an important and valid point.  This is why I am interested in 
Aurora Inverters.  They use ungrounded PV arrays.  Here is a link to the 
manual. 
http://www.power-one.com/resources/products/appnote/AlternativeEnergy/manual4.2us.pdf 
Check out section 2.4.2.  Here is the manufacturer's web 
site:  http://www.power-one.com/renewable-energy/grid-tie-solar-inverters.php

Alternatively, we need the device I invented, only to find someone beat me 
to 
it: 
http://www.google.com/patents?id=wXHIAAAAEBAJ&pg=PA2&dq=solar+ground+fault+protection&source=gbs_selected_pages&cad=2#v=onepage&q=&f=false

William Miller


At 06:05 PM 12/5/2009, you wrote:
>Remember target had two fires. one caused by the conduit cutting 
>insulation and the other by the ground current passing through small 
>module ground leads.  Had the grounded conductor not been grounded this 
>other fire would not have happened.  We need to move to ungrounded systems.
>Darryl
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