Dual Bank vs One Bank SWs/Ripple [RE-wrenches]

matthew tritt solarone at charter.net
Tue Dec 10 10:08:15 PST 2002


Jeff,

One thing for sure is that you'll have to set the chargers down considerably
because of the relatively low generator output when running two SW55's. If
not, there will be problems.

Speaking of generators, anybody out there have a line on a used 6 to 10 kW
115/230 single phase, Diesel or LP set at an ultra-low price?? I've got a
desperate customer;  desperate because some jerk stole their nice little
Diesel Onan. They are now surviving on 3 low output Carriza modules and a
TruckStop inverter.

Matt
----- Original Message -----
From: "Jeff Clearwater" <clrwater at earthlink.net>
To: <RE-wrenches at topica.com>
Sent: Tuesday, December 10, 2002 8:46 AM
Subject: Dual Bank vs One Bank SWs/Ripple [RE-wrenches]


> Hey All,
>
> I have a customer where we are doing an add PV upgrade to a
> battery/inverter/generator-only system.
>
> Presently he has two 5548's  with each inverter fed from a separate
> battery bank.
>
> I'm planning to combine the banks so I need only one charge control,
> one shunt and one KWhr meter.
>
> Other than than having to set the SWs to work together per previous
> threads on this list - my concern is that I not downgrade by
> introducing the ripple problem.  I've heard that ripple can really
> shorten battery life considerably. He charges with a 10KW diesel so
> charging with just one SW doesn't really make sense.   Other Wrenches
> experience on this?
>
> Thanks,
>
> Jeff
>
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