[RE-wrenches] Xantrex 6048 installation for house with existing automatic generator design assistance

Christopher Warfel cwarfel at entech-engineering.com
Tue Dec 31 08:26:25 PST 2013


No, I monitored it, and verified by looking at the historic 
consumption.   EVERYTHING is on its own circuit breaker.  The owner lost 
his building in 911 and built this house (I believe) because of wanting 
something that he believed would give him the flexibility for many 
contingencies.


On 12/30/2013 5:45 PM, Chris Mason wrote:
> A house with 2 x 400A panels draws a maximum of 20A? There's something 
> wrong in your numbers.
>
>
> On Mon, Dec 30, 2013 at 5:45 PM, Christopher Warfel 
> <cwarfel at entech-engineering.com 
> <mailto:cwarfel at entech-engineering.com>> wrote:
>
>     I am working on a project that requires someone with more
>     experience than I have in generators and transfer switches.
>
>     Would you please contact me off line if interested
>
>     Currently
>
>     Utility fed house with two 400 amp panels.  Maximum total house
>     current drawn over a long monitoring period is 20 amps. Owner
>     wanted these panels so almost every load is on its own breaker.
>
>     The house also has a 25kVa generator on an automatic transfer switch.
>
>
>
>     Proposed
>
>     Installing two 3.2kW arrays each on its own Xantrex 80amp600Vdc
>     charge controller.
>
>     Battery backup system to take through momentaries and short
>     duration (1 day? outages)
>
>     Want to use existing generator to charge batteries and power house
>     in the event of utility outage, and batteries are at low voltage
>     state.
>
>     Required to automatically revert to Current situation if inverter
>     fails and no one is home. [This is the part that I need assistance on]
>
>     Thank you, Chris
>
>
>
>
>
>     -- 
>
>     Christopher Warfel, P.E.
>     ENTECH Engineering, Inc.
>     Energy Utilization Experts
>     (401)466-8978 <tel:%28401%29466-8978>
>
>     The information contained within this communication shall
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>     without knowledge of the sender. Please contact us if
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>
> -- 
> Chris Mason
> President, Comet Systems Ltd
> www.cometenergysystems.com <http://www.cometenergysystems.com>
> Cell: 264.235.5670
> Skype: netconcepts

-- 

Christopher Warfel, P.E.
ENTECH Engineering, Inc.
Energy Utilization Experts
(401)466-8978

The information contained within this communication shall
be considered confidential and shall not be retransmitted
without knowledge of the sender. Please contact us if
this email reached you in error. Thank you.

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