[RE-wrenches] Fault Current

[Chris Mason]

Before I spent any money, I would hire a PE with solar experience to give
you an option. I doubt solar iinverters, which are current limited, would
be a fault current issue. Usually fault current rating is a factor of the
internal resistance of the secondary winding of a high voltage transformer.
Solar inverters can't produce those kind of short circuit currents and are
not a factor.


On Thu, Mar 27, 2014 at 2:05 PM, Karl Jaeger <kjaeger at lightwavesolar.com>wrote:

>  Esteemed Wrenches,
>
> We've recently run into an issue with a local distributor citing network
> fault current on a split-phase service as a reason to prevent
> interconnection of our customer's solar array. They've given us the options
> of reducing our system size from 36.5kW-DC to 15kW-DC, or having the
> customer upgrade to 3-phase at a soft price of $20-30K. We're looking at
> 32kW of inverters on a 167kVA transformer.
>
>
>
> Does anyone have experience on circumventing the issue of network fault
> current? Any experience with Fault Current Limiters?
>
>
>
> Much appreciated,
>
>
>
> *Karl Jaeger*
>
> *Design/Build Engineer*
>
> *LightWave Solar Electric LLC*
>
>
>
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-- 
Chris Mason
President, Comet Systems Ltd
www.cometenergysystems.com
Cell: 264.235.5670
Skype: netconcepts
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