[RE-wrenches] String Combiners for a-Si modules

[Kirpal Khalsa]

Peter...depending on the series fuse rating you might be able to get away
with more strings in parallel before series fusing is required........what
panels are they and what is the series fuse rating of the modules?
Fronius has a white paper explaining when series fusing is required and when
you can get by without.......it all relates to series fuse rating and
Isc......the higher the series fuse rating and the lower the Isc the more
strings you can parallel with out adding series fusing........
-- 
Sunny Regards,
Kirpal Khalsa
NABCEP Certified Solar PV Installer
Renewable Energy Systems
www.oregonsolarworks.com
541-218-0201 m
541-592-3958 o

On Tue, Jul 21, 2009 at 2:44 PM, Peter Parrish <
peter.parrish at calsolareng.com> wrote:

> We are doing an engineering design for a large scale PV ground mount system
> based on a-Si modules. Since the Isc of the modules is 1.5 A, instead of
> 7-8
> A of typical c-Si modules, are there special low-current combiners out
> there? Does each string need an overcurrent protection device? Any help
> with
> a-Si based system design would be greatly appreciated.
>
>
> Peter T. Parrish, Ph.D., President
> California Solar Engineering, Inc.
> 820 Cynthia Ave., Los Angeles, CA 90065
> CA Lic. 854779, NABCEP Cert. 031806-26
> peter.parrish at calsolareng.com
> Ph 323-258-8883, Mobile 323-839-6108, Fax 323-258-8885
>
>
>
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