Just so l understand you had current not voltage where was the current flowing to. I have had static voltage from HV transmission lines but not induced current while the system was off. Jerry Jerry On Feb 24, 2016 12:42 PM, "Rebekah Hren" <[email protected]> wrote:
> I'd be more worried about induced current/voltage on metal/conductors in > the PV array, which seems like it could cause issues with GFP devices, and > possibly unsafe conditions. I worked on one large array (5 MW) where the > point of interconnection was parallel to / under high voltage lines. Even > when the PV system wasn't operating there was measurable current on the PV > system conductors induced from the high voltage lines above. The utility > nearly wouldn't let the system be allowed to interconnect, because we had > trouble proving the anti-islanding was working as current was still flowing > when the utility supply was disconnected (on the lower voltage not higher > voltage lines). > Rebekah > > > On Wed, Feb 24, 2016 at 4:18 PM, Jerry Shafer <[email protected]> > wrote: > >> We have both GT and off grid in the shadow lines, because of the distance >> away, diameter of the wire and also the sun have not seen any issues that >> will warrent micro inverters. All that said, its a moving target and if the >> wires are very close then it will be more of an issue. >> Something else to ponder can you in fact install under HV transmission >> lines in your area. >> Jerry >> On Feb 24, 2016 5:50 AM, "Paul Lyons" <[email protected]> wrote: >> >>> Hell RE-Wrenches – >>> >>> >>> >>> Do any of you have experience with locating ground-mounted PV systems >>> under high-voltage transmission lines? We have an electric utility client >>> who would like to use some of its land underneath its HV transmission lines >>> to install PV. Is the shadow cast be the overhead wires significant enough >>> to affect the string voltages in the array? Should we go with >>> micro-inverters? >>> >>> >>> >>> Thank you, >>> >>> >>> >>> Paul Lyons, P.E. >>> >>> Zapotec Energy Inc. >>> >>> 675 Massachusetts Ave >>> >>> Cambridge, MA 02139-3309 >>> >>> Tel: 617-547-5900 ext.201 >>> >>> Email: [email protected] >>> >>> Web: www.ZapotecEnergy.com >>> >>> >>> >>> _______________________________________________ >>> 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 >>> >>> >>> >> _______________________________________________ >> 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 >> >> >> > > > -- > Tel: 336.266.8800 > NABCEP Certified Solar PV Installation Professional™ 091209-85 > NC Licensed Electrical Contractor > > _______________________________________________ > 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 > > >
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