Run the DC straight to a breaker in the power center. Use a voltage
sensitive relay to stop the generator when the battery voltage gets high.
At 08:53 PM 10/29/2011, you wrote:
How would you integrate a dc generator like to Polar Power into a
"standard" inverter/charge-battery-pv charge controller system?
Mark Frye
Berkeley Solar Electric Systems
303 Redbud Way
Nevada City, CA 95959
(530) 401-8024
<http://www.berkeleysolar.com/>www.berkeleysolar.com
----------
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of R Ray Walters
Sent: Monday, October 24, 2011 7:55 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Cummins DC generator
They show them as being used specifically for off grid solar
applications including remote homes, but I'm with you, I don't
understand the voltage limitation.
They seem to think they are just replacing the battery while
running, not actually charging it. Very weird. I even went through
their case studies, and I'm wondering if they might end up with some
long term sulfation problems. It seems they're only interested in
reducing the battery size, not augmenting the PV charging; seems a
waste of fuel.
I linked to these for Allan earlier just as "food for thought" I
wasn't actually advocating their use. It does look like a decent
generator, so possibly the voltage limitation could be overcome?
I remember another DC gen set, that ran a Honda motor to belt belt
drive a truck alternator (late 90s). I recall them being something of a pain.
Here's another that looks interesting, and actually can be adjusted
up to 64 vdc:
<http://polarpowerinc.com/products/generators/index.htm>http://polarpowerinc.com/products/generators/index.htm
Once again, I'm just sharing the info, not advocating these.
R. Walters
<mailto:r...@solarray.com>r...@solarray.com
Solar Engineer
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