[RE-wrenches] Remote relay options

Drake drake.chamberlin at redwoodalliance.org
Mon Dec 10 07:14:15 PST 2012


Reviewing the posts, I agree that wouldn't help.

At 06:16 PM 12/9/2012, you wrote:
>Then you have to find a 600V DC rated contactor. 
>If you are going to use a contactor, which the 
>original poster said he couldn't do, why not use 
>the 240V AC rated, costs about $129 for a 30A contactor.
>
>
>On Sun, Dec 9, 2012 at 6:10 PM, Drake 
><<mailto:drake.chamberlin at redwoodalliance.org>drake.chamberlin at redwoodalliance.org> 
>wrote:
>Why not disconnect the DC into the inverter with a Tyco relay?  No DC, no AC.
>
>
>
>
>At 10:32 AM 12/5/2012, you wrote:
>Hi All,
>
>I am looking for options for controlling a disconnecting relay for a
>grid-tied inverter.  It is a PVI5000 so 30 amp 240vAC.  I need to
>disconnect it when the backup generator gets kicked on by the Automatic
>Transfer Switch when the grid goes down.  The array is on a garage that is
>several hundred feet from the house and service entrance and ATS and
>digging in a control wire for that distance won't work.  So I need a way
>to sense that the generator is putting out power and then control a
>contactor which would disconnect the inverter from the subpanel.  I've
>looked for wireless and powerline control options but I can't seem to put
>together the pieces.
>
>Any ideas of the most cost effective and reliable approach?
>
>Thanks,
>Howie
>--
>Howie Michaelson
>NABCEP Certified Solar PV Installer™
>
>Catamount Solar, LLC
>Renewable Energy Systems Sales and Service
>VT Solar Electric & Hot Water Incentive Partner
><http://www.CatamountSolar.com>http://www.CatamountSolar.com
><tel:802-272-0004>802-272-0004
>
>
>
>
>
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>--
>Chris Mason
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