[RE-wrenches] Remote relay options

[Chris Mason]

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
<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
>> 802-272-0004
>>
>>
>>
>>
>>
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-- 
Chris Mason
President, Comet Systems Ltd
www.cometenergysystems.com
Cell: 264.235.5670
Skype: netconcepts
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