Outback HBX mode [RE-wrenches]

[Christopher Freitas - OutBack Power]

The transistion from Grid to Inverter and Inverter to Grid are both 
fully phase synchronized - so very little flicker is noticeable and we 
have tested it with loads operating without any issues. It is at least 
as good as a SW. With the OutBack inverters we also have coordinated the 
operation of the inverter's AC transfer switches from the Master to the 
Slaves - so you won't have issues with one leg of the AC system on 
inverter while the other AC leg is still on the utility grid...   

If your grid voltage typically varies much from 120 VAC then the 
switchover either way will be a little more noticeable, as we don't 
match the AC voltages before transfering - but you can use or field 
calibration adjustment ability to tweek it up or down a few AC volts to 
match the relative trend of your utility power. Even if this is not done 
the amout of flicker would be similar to a fridge start or other medium 
sized AC load with grid power.  

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



Victor Creazzi wrote:
> 
>  Christopher,
> 
>  Thank you for your discription of HBX, it sounds
> exactly how I usually run my SW with a lot of manual
> intervention. I am curious about the actual switching
> between grid and inverter. Is the switching
> syncronized like the SW where the inverter is in phase
> with the grid before transfer occurs, or is it simply
> a relay transfer. If the later what is the effect to
> appliences and is there a noticable flicker?
> 
> Make the wind fun!
> Victor Creazzi 
> Aerofire Windpower
> 
> __________________________________
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