[RE-wrenches] TL inverter with long DC Feeder

[Chris Mason]

I presumed SMA TL series.

On Mon, Oct 6, 2014 at 10:02 PM, Jerry Shafer <jerrysgarage01 at gmail.com>
wrote:

> As i read the thread you say TL which TL SMA, AE ect. They have defferent
> dc input designs
> On Oct 6, 2014 12:21 PM, "jay peltz" <jay at asis.com> wrote:
>
>> I do believe the outback and midnite combiners have a lock hole to
>> prevent exactly your concern.
>> unauthorized access.
>>
>> jay
>>
>> peltz power
>> On Oct 6, 2014, at 11:40 AM, William Miller wrote:
>>
>> Wrenches:
>>
>> We are getting up to speed on using transformer-less inverters.  I have
>> advocated long for the additional safety offered by these inverters but I
>> am realizing the trade-offs with the new technology:  The implementation
>> gets more complicated with the requirement for PV wire, OCPD and
>> disconnecting means for plus and minus and plus providing  Arc Flash rated
>> equipment.
>>
>> I am currently designing a system that will locate the PV about 400 feet
>> from the residence.  The system will utilize 2 Solectria 5200 watt
>> inverters at the residence.  I would like to provide disconnecting means
>> for the 4 strings at the array, in case of any needed service or
>> excavating.  Preferably I’d like the disconnecting means to be deployable
>> by a lay person (i.e. the gardener).
>>
>> Finding an 8 pole, arc flash, 600 VDC rated disconnect is not easy.  I
>> could install an Outback 8 circuit combiner with 8 touch-safe fuse
>> holders.  The new combiners have had dead-fronts for a while now.  The
>> gardener needs only to have a Philips screw driver to open this cover.  Any
>> better ideas out there?
>>
>> Thanks,
>>
>> William
>>
>>
>> <image002.jpg>
>> Lic 773985
>> millersolar.com <http://www.millersolar.com/>
>> 805-438-5600
>>
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-- 
Chris Mason
NABCEP Certified Solar PV Installer™
Solar Design Engineer
Generac Generators Industrial technician

www.cometsolar.com <http://www.cometenergysystems.com>
264.235.5670
869.662.5670
Skype: netconcepts
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