[SML] Sympathetic GFI Tripping

[Lou Poppler]

You probably should take a look at the quality of the "bonding" between Ground
and Neutral ["grounding" and "grounded" conductors] at the "main" panel(and the quality of any intermediate neutral connections between your newGFI breakers and this bonding point).
If the central Neutral point doesn't have a good path for any unbalanced
current to reach Ground [and/or transformer center tap], then some of
this current might try to "kick" capacitively into other neutral wires.

----- Dan Sheehan via Stagecraft <stagecraft at theatrical.net> wrote:
>... but it's tripping the *other* circuit, not the one in use and loaded.Alf, does it make any difference if the other circuit is loaded or not ?
On Wed, Mar 2, 2016 at 12:24 PM, Richard Niederberg via Stagecraft <stagecraft at theatrical.net> wrote:
Sharing a neutral could contribute to this situation, but leakage to ground is more likely, if leakage increases when the amperage drawn increases./s/ Richard
On Wed, Mar 2, 2016 at 9:09 AM, Jerry Durand via Stagecraft <stagecraft at theatrical.net> wrote:

> 
> 
> 
>
>Might be sharing a neutral wire.

>

> Also, are these combined spark detecting/GFCI?  Those can be
> tripped just by thinking about a thunderstorm.

>

>On 03/02/2016 09:02 AM, Alf Sauve' via
> Stagecraft wrote:

>
>Started
> using our Blendtech after a hiatus and since the kitchen
> renovation.
>

>

> Part of the renovation added two circuits with GFI breakers in our
> electrical box.   Well, it seems when the Blendtech kicks in to
> high speed there must be an induction of current into another
> circuit as one of the new GFI breakers trips.  Not the one with
> the blender on it, but another one!    Am guessing the wires are
> running in parallel to tightly packed going through holes in the
> floor joists.
>

>

> And it doesn't happen every time the blender kicks into high, only
> if it had something heavy to blend.  Filling the jar with water
> won't produce the sympathetic tripping.
>

>

> The circuit being tripped isn't in the kitchen but runs the lights
> and outlets in the breakfast area, so I'm replacing it with a
> non-GFI one.
>

>

>
>

>-- 
> Jerry Durand, Durand Interstellar, Inc.  www.interstellar.com
> tel: +1 408 356-3886, USA toll free: 1 866 356-3886
> 
>
>
> 
>
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-- 
/s/ Richard
_________
>
>
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-- 
...Dan Sheehan
Fixer of things that break


>

-- 
Whom computers would destroy, they must first drive mad.--(Fortune)
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