[RE-wrenches] Supply Side Interconnection - CT Cabinet

Chris Mason cometenergysystems at gmail.com
Thu Jul 10 15:51:24 PDT 2014


But, they are bonding their neutral tap to the casing with #14 wire. Can't
be right.


On Thu, Jul 10, 2014 at 6:49 PM, Chris Mason <cometenergysystems at gmail.com>
wrote:

> Insulated taps are for voltage.
> L1 is forward, L2 backward, so as to measure total current in both legs
> with one CT.
>
>
>
>
> On Thu, Jul 10, 2014 at 4:39 PM, Corey Shalanski <
> cshalanski at joule-energy.com> wrote:
>
>> Wrenches,
>>
>> One of our customers has a utility meter CT cabinet ahead of his main
>> disconnect - please see attached image.
>>
>> I have never seen this arrangement and would be interested if anyone can
>> explain why the conductors are run in this fashion: I assume the insulated
>> taps are for voltage reference purposes or to power the meter? I also
>> assume the large donut is the CT? Are the conductors run criss-crossed due
>> to they're being 180 out of phase?
>>
>> We are more particularly interested in the correct location to make a
>> supply side interconnection in order to ensure that all PV energy is
>> properly metered (our utility installs net meters in place of the
>> customer's original meter). Assuming that our AHJ approves of an
>> interconnection inside the CT cabinet, where would we splice into the
>> service conductors: load side of the CT?
>>
>> --
>> Corey Shalanski
>> Joule Energy
>> New Orleans, LA
>>>>
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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
>



-- 
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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