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Re: [RFI] Aims 5000 Watt MSW Power Inverter

To: Craig Warnol <kb5uej@amsat.org>
Subject: Re: [RFI] Aims 5000 Watt MSW Power Inverter
From: kd4e <doc@kd4e.com>
Reply-to: doc@kd4e.com
Date: Mon, 15 Sep 2008 14:11:07 -0400
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
Excellent info Craig!

Perhaps a combination of a much smaller inverter and a large
generator would provide some redundancy.

If the generator were to fail one would have some access to
AC power from a vehicle.

Will watch for a reasonably priced generator - once I am
able to sell some spare Ham gear - market is tough out there.

> I understand your line of thinking, but let me throw this out.  I 
> thought about the same thing until I looked at the numbers. I bought a 
> Coleman Powermate 6250 for ~$400. Just before Hurricane Ivan hit us in 
> 2k4. This generator puts out 5KW surges to 6250, and runs 11 hours on ~ 
> 5 gallons of gas. How much gas would it take to run a vehicle at 2000 
> rpm for that time? Most alternators in vehicles need a minimum 1500 rpm 
> to generate output. See attached image (This is for a 200A Powermaster 
> CS144 GM // alternator.) To get 200A out of it, you would have to keep 
> your vehicle running ~3500 RPM. You would need two of these in addition 
> to your normal alternator to be able to be able to supply the 416A+ 
> required to put full load on that inverter.
> 
> 
> 73, Craig (KB5UEJ)


-- 

Thanks! & 73, doc, KD4E
Free OS : http://www.PuppyLinux.com
Personal: http://kd4e.com
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Have an http://ultrafidian.com day!
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