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 < [email protected]> 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 > ᐧ > > _______________________________________________ > List sponsored by Redwood Alliance > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://www.mail-archive.com/[email protected]/maillist.html > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > www.members.re-wrenches.org > > > -- 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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