ProSine 2.0 glitches [RE-wrenches]

[Ezra Auerbach, DragonSun Consulting]

I'm taking the bulk of my reply off line as this is getting way to
nit-picky for everyone.  I do want to end this string with a simple
statement that I am quite impressed with the VFX and like alot.  Having
said that, and being experienced with both inverters SW Plus and VFX, I
can say quite easily that they each have strong and weak points and the
final "which one is best" decision should be made on a site-by-site
basis.  It's great to have the choice now!!!

Ezra

-----Original Message-----
From: Christopher Freitas - OutBack Power
[mailto:cfreitas at outbackpower.com] 
Sent: Friday, September 26, 2003 4:26 PM
To: RE-wrenches at topica.com
Subject: RE: ProSine 2.0 glitches [RE-wrenches]


I pulled out my notebook from the day you were here when we discussed 
your test results and here is what I had recorded:

  The VFX 3524 charged at 85 amps DC but the AC voltage was sagging

  The SW+ 2524 was putting out 60 amps DC from your generator

So the increased charger output was be 85A/60A = 1.41 or 41% more.  

I made a mistake in my earlier post and did it the other way 60/85 = 
0.70 which I then incorrectly converted to being a 30% increase - need 
to not type and do math at the same time...  

When both operate at their rated specs the increase would then be:

  VFX 3524  85 amps   85A/70A = 1.21% or a 21% increase for the VFX
  SW+ 2524  70 amps

The ProSine is a 12 vdc only unit and has a charger rated at 100 amps DC

- which would be the same as a 50 amps DC charger on a 24 vdc system - 
but it is only a 2kW unit so not really a fair comparison.  

ezra at lasqueti.net wrote:

> To be totally nit-picky it was delivering about 21% more current to 
> batteries than either of the other inverters mentioned.

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

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