positive grounding

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System
System Posts: 2,511 admin
in PV Installers Forum - NEC, Wiring, Installation #1
has anybody have an Idea how to do positive ground on a grid tie installation?
or does anybody know what to do when you have positive ground your panels?
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  • BB.
    BB. Super Moderators, Administrators Posts: 33,439 admin
    #2
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    Re: positive grounding

    The major GT Inverter Manufacturers do the "panel grounding" for you...

    Xantrex, you order the positive ground option (they stuff the ground fault detection fuse holder in a different location and probably a configuration jumper change by the factory).

    Fronius, you just move the fuse to a different holder and move a jumper or two.

    You do not "ground" the array yourself through an external jumper--this defeats the ground fault detection circuitry/detection fuse.

    -Bill

    PS: Check the on-line installation manuals for the GT Inverter(s) you are interested in--I am just reciting my limited understanding/from personal memory.
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
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  • newenergy
    newenergy Solar Expert Posts: 291 ✭✭✭✭✭✭
    #3
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    Re: positive grounding

    SMA, also. Just connect the white to the positive. (read the manual of course)
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