[RE-wrenches] single string of batts: must the interconnects beinverter size cables?

[Tump]

Is solar ray doing installed in Mobil applications or is this something that
is going to be in a home & inspected ? 

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Mick Abraham
Sent: Monday, February 22, 2010 10:47 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] single string of batts: must the interconnects
beinverter size cables?


...that last sentence of Ray's...what a fine additional factor to bring up:
"Inherent current limitation because the battery just can't do more." I'm
going back to my charts!

Mick Abraham, Proprietor
www.abrahamsolar.com

Voice: 970-731-4675



On Sun, Feb 21, 2010 at 10:19 PM, R Ray Walters <ray at solarray.com> wrote:

 

...Some of the sealed battery manus (B&B for instance) give max current
output vs time charts, and that not only gives you something for cable
sizing, but also is an eye opener, when expecting a single string of two 12
volt batteries to run a 4 Kw inverter. A battery that can only produce 250
amps for less than 5 sec, doesn't deserve a cable sized for 24 hr continuous
at that output. 


R. Walters
ray at solarray.com
Solar Engineer


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