>600 Voc (was Uni-Solar and SMA and Xantrex PV inverters) [RE-wrenches]
Joel Davidson
joeldavidson at earthlink.net
Wed Aug 20 10:00:52 PDT 2003
Roy,
Thanks for the feedback. Anyone have problems with Building and Planning
regarding greater than 600 Voc based on NEC 690.7 correction factors? Thanks
in advance.
Joel Davidson
Roy Dyngen wrote:
> Joel,
>
> As for nuisance breaker tripping or blown fuses, they would have to be
> sized to allow for the "soaking" period. In particular to the PV series
> inverters, exceeding the 600 volt limit will cause a latching
> fault,(must be manually reset). I spoke to Mike Behnke in Livermore and
> he said he had in the past suggested shorting out one panel per string
> during the soaking period to minimize the chance of overvoltage.
>
> Roy Dyngen
> Joel Davidson wrote:
> >
> > Uni-Solar modules have higher initial voltage and current. Has anyone
> > experienced nuisance breaker trips or blown fuses during the first 8 to
> > 10 weeks after installation?
> >
>
> Roy Dyngen
>
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