[Rhodes22-list] genset test

Michael Meltzer mjm@michaelmeltzer.com
Wed, 6 Nov 2002 00:07:01 -0500


I also forgot to mention, take those power rating on the back panel with a gain of salt. Over the years I found them to be over
rated, I suspect they are a worst case plus an engineer being convective to build in a safety factor.

MJM

----- Original Message -----
From: "Michael Meltzer" <mjm@michaelmeltzer.com>
To: "The Rhodes 22 mail list" <rhodes22-list@rhodes22.org>
Sent: Wednesday, November 06, 2002 12:02 AM
Subject: Re: [Rhodes22-list] genset test


> their is also another problem, a heating element is not effect by low voltage or poor Frequency, it is the simplest type of
> "resistive load".
>
> OTOH a microwave is converting the power to run the electonics and supply power to the megatron, very tied into the quality of the
> power.
>
> MJM
>
>
>
> ----- Original Message -----
> From: "Rik Sandberg" <racerrik@rea-alp.com>
> To: "The Rhodes 22 mail list" <rhodes22-list@rhodes22.org>
> Sent: Tuesday, November 05, 2002 11:35 PM
> Subject: Re: [Rhodes22-list] genset test
>
>
> > Brad,
> >
> > The microwave we got is supposed to be 600 watts. This particular model is
> > made by Sharp. It's meant to be used in a dormitory or efficiency type
> > apartment. It is almost a perfect cube shape about 13 inches on a side. I
> > don't know how the output rating (600 watts) relates to the input
> > requirement. Obviously they are not the same. The tag on the back of the
> > unit says it should draw 9 amps. Taken times the voltage (110) this would
> > indicate a 990 watt draw. Far more than half again more than the 600 watt
> > output. If you took the 600 watt output and divided by the voltage this
> > unit should draw 5.45 amps, which should be easily within the capabilities
> > of the honda 1000 watt generator. I guess there must be a fairly large draw
> > for the fans, turntable motor etc., that is not factored into the output
> > rating.
> >
> > So, there you have it. A 600 watt nuker can draw as much as 1000 watts. I
> > suppose the reason the heater works is that the 750 watt output is the only
> > thing power is used for in the heater. No other parasites.
> >
> > Don't know if there are any other microwaves out there that would be any
> > different. I you find one, I'd sure like to hear about it. AND, read the
> > spec tag, not the box. :-)
> >
> > Good luck,
> > Rik
> >
> >
> > At 06:52 PM 11/5/2002 -0800, you wrote:
> > >Rik, what size microwave (wattage) did you try?  It
> > >looks like the smallest is about 500-600 watts.  I
> > >hooked up a 750 watt ceramic heater and the Honda
> > >handled it no problem.  Earlier I mispoke about the
> > >noise level, you and I both know how quiet the thing
> > >is.  The actual db level at full-throttle is 57 db.
> > >Normal conversation is at 60db.  Later in the week I'm
> > >going to look for a small unit in the .6 cubic foot
> > >range around the 600 watt level.  Looks like it should
> > >work on paper.  Brad.
> > >
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