Outback X-240 Autotransformer [RE-wrenches]

[Darryl Thayer]

I believe it is ths same transformer with extra
cooling?   The built in fan and thermostat to turn the
fan on and off.  

Darryl

--- "David Palumbo, Independent Power & Light"
<ipl at sover.net> wrote:

> 
> Is the PSX240 good for 6kW or just 4kW? I need a
> t-former for a Sunny Island
> (SI5048) back up system.
> - Dave
> 
> -----Original Message-----
> From: Drake Chamberlin
> [mailto:Drake.Chamberlin at redwoodalliance.org]
> Sent: Monday, January 07, 2008 7:04 PM
> To: RE-wrenches at topica.com
> Subject: Re: Outback X-240 Autotransformer
> [RE-wrenches]
> 
> 
> 
> At 05:34 PM 1/6/2008, you wrote:
> >I certainly hope not.  Autotransformers are more
> efficient than two
> >winding transformers (due to their lower
> relucatance) and good
> >2-winding transformers are typically over 95%
> efficient.  98-99% is
> >not out of the question.
> 
> I finally got a word from Outback from tech support.
>  A message was
> relayed from Steve Higgens, who says the X-240 is
> 80-90%
> efficient.  I think we need to bypass them for the
> grid connection on
> AC coupled systems.
> 
> 
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