OutBack [RE-wrenches]

[Christopher Freitas --- OutBack Power]

Marco - 

The GT versions of the OutBack FX have only a single AC input still and 
have limited compatibility with generators still.  These issue are 
something we have been working on - just haven't completed it yet. 

Part of the challenge we are facing is the large expense of relisting 
the product with UL/ETL these days - the last round of testing for the 
"updated" UL1741 standard was very expensive.  This causes us need to 
batch our changes together and requires us to have a higher confidence 
level in the software going into the testing as we do not want to have 
to stop the testing or retest after some changes were required.   

We have recently been testing the grid-tie versions of the FX inverters 
with some of the common inverter-generators and have found good 
performance.  The only caution I have is that the ratings on these 
generators are optimistic - the Honda 3000 is rated for only 2300 watts 
continuously and its hard to get more than about 2000 watts out of it 
without its electronic overcurrent protection tripping off.  Very low 
fuel consumption though for the watt-hours delivered.  

One nice option is to use a DC generator of course - which also solves 
the issue of poor AC power quality when running sensitive AC loads on a 
loaded generator.  It also makes the AC wiring simpler and the system 
easier to operate for the customer I think.  I just wish there was more 
DC output generators models available in the market.  

Christopher

Christopher Freitas
OutBack Power Systems, Inc.
cfreitas @ outbackpower.com  
www.outbackpower.com
Arlington WA USA
Tel 360 435 6030  


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