3rd option would be to have a separate charger (IOTA) that just runs
from the generator. No pass through loads to the generator.
4th option would be to use a larger Kohler for backup. My experience is
that even if they don't think they'll need it, they eventually will
actually use it. Large off grid systems tend to creep ever larger.
I'd look at all the scenarios with pricing, and pros and cons. You'll
see what makes sense.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 9/30/2013 5:14 PM, William Miller wrote:
Larry:
Maybe a better approach might be to use an inverter with "Gen-support."
That is unless a system already exists that does not have this feature.
Plan B: use the gen start signal to disable one or more of the larger
loads.
I know this is not what you asked for, just trying inject some different
ideas.
William
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Larry
Crutcher, Starlight Solar Power Systems
Sent: Monday, September 30, 2013 1:02 PM
To: RE-wrenches
Subject: [RE-wrenches] Generator automatic disconnect
Wrenches,
I want to use the Ecogen 6kW generator on a large off grid system. The
location has very few overcast or rainy days and the generator will rarely
be needed. My concerns is nuisance tripping the generator output breakers if
the household load exceeds 6kW. The power system control has a feature for
reducing the AC current used to charge the batteries but does not have a
feature for disconnecting the AC input based on input load.
Does anyone have a solution for monitoring AC load from the generator and
disconnect it if overloaded? It must automatically reconnect after a short
timeout.
Thank you,
Larry Crutcher
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