Tripping breaker [RE-wrenches]

[Andrew Truitt]

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Thanks all.  I moved the breaker to the opposite end of the busbar
from the utility disconnect and replaced it with a 40A.  I have also
advised the client to get a heavy up or at least a bigger main panel
which she is considering.  If she does then I'll try going back to the
UL required breaker in the new panel.  If she doesn't then I might try
putting a subpanel between the inverter and the panel with a 20A
breaker in it.  Either way I have to hope that it was the heating
busbar and not something about the power flow (like Drake's capacitor
issue or the squirrelly northern VA grid) that caused the tripping.

Thanks again everyone.

Andrew Truitt
Standard Solar Inc.





On 5/3/07, Drake Chamberlin <Drake.Chamberlin at redwoodalliance.org> wrote:
>
>
>
>
>    I had a similar problem on an old Sun Tie, that
> drove me nuts. The breakers on the unit wouldn't blow when the inverter was
> switched on, although the breakers in the main box would, even though they were
> rated at 20 amps compared to 15 amps in the unit (as I recall).
>
> I turned out that the capacitors charging were the culprit.  The reason
> the breakers in the box would blow, even though of higher rating, was that the
> particular brand of breaker just happened to blow more quickly!  Tech
> support theorized this.  When 30 amp breakers were used in the main box
> with #10 wire to the inverter, all worked fine.
>
> Drake
>
>
> [Non-text portions of this message have been removed]
>
>
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