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

[Peter Parrish]

EPV Solar EVP-54

The Isc is 1.49 A

The cut sheet does not list a series fuse rating for the module.

But it does say something about being able to use up to 8 in parallel
without external protection.

I am in the hunt for installation instructions.

 

- Peter 

 

 


 

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


 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Kirpal
Khalsa
Sent: Tuesday, July 21, 2009 3:11 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] String Combiners for a-Si modules

 

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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