Next message: Louise Coulson: "Re: lv-ab: Kiss my ass goodby!!"
>Randy,
>
>I am at a loss to understand your experience. If the values you cite for
your
>reefer are correct, it may have a microprocessor which controls the
current
>to the motor so that the machine operates consistently over the typical
range
>of voltage which cruisers experience.
>
>The fact remains that if you reduce voltage to a lamp, it will dim. A
good
>example is the dimming of headlights when the starter is engaged and pulls
>the battery voltage down.The light output is reduced by virtue of less
energy
>(watts) consumed. You'll recall that a load doesn't really "draw" current;
>it's the EMF that forces the electrons to flow through the load. If you
>reduce the EMF, the current will decrease.
>
>I spent years aboard ships which had 120/240VDC systems, and if we
increased
>the generator voltage, the current increased, the motors speeded up and
the
>lights got brighter; with decreased voltage, the ammeters declined, the
>motors slowed and the lights dimmed. I don't see how anyone can argue with
>that.
>
>Kind regards,
>
>John
>"Truelove"
>
>In a message dated 8/20/1999 5:46:07 PM Eastern Daylight Time,
> writes:
>
>> This is visible to me as my batteries discharge and the fridge, say, is
>running. With a full charge showing something in
>> the neighbourhood of 13V, it draws 9.2A. When my voltage has dropped to
12
>>volts (at around 50-60% discharged), its
>> drawing over 10.
I finally tracked down why my refrigerator was pulling too much current
lasts summer - low voltage, the same as mentioned above. After some
studying I finally understood that the motor was actually driven by ac run
from a small inverter (Adlar Baurbor). If thedc voltage drops, it has to
pull more amps to put out the same ac power. Cleaning up connections and
increasing wire size has helped it a lot.
Gene Gruender
Rainbow Chaser
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