Is this one of those perpetual motion things again?
I almost had it once with some pigs, a mule, and a generator.
I hadn't thought to put in the alternator.
Lonnie
----- Original Message -----
From: <jelerath@us.ibm.com>
To: George Long <longgw@nni.com>
Cc: <oletrucks@autox.team.net>
Sent: Tuesday, July 06, 1999 3:52 PM
Subject: Re: [oletrucks] an electrifying idea
>
>
> Interesting thought, but what problem is this supposed to solve? (No
battery?
> Dead battery?)
>
> Generator has permanent magnets in it so you don't need a battery, just
spin it!
> (This is why a permanent magnet motor becomes a generator if you spin it.)
>
> Alternator needs sufficient current to keep the field energized so you
need
> either a "good" battery (one charged enough to keep the field energized
until it
> can energize itself) or you need to apply some sort of external voltage
source
> to energize the field windings. (A jump start by pushing won't work if
your
> battery is missing or really dead.) If the field is not energized, you
get
> nothing out of the alternator. However, after there is sufficient current
in
> the field, THEN the alternator produces an output. Once the alternator
has an
> output, this can be used to energize the field and keep the alternator
working.
>
> The way the regulator prevents overcharging is to interrupt the field
circuit to
> the alternator. (External regulator). When the voltage of the alternator
is
> greater than the voltage of the battery, the regulator field relay stays
closed
> so the battery continues to be charged. When the battery has nearly the
same
> voltge as the alternator, then the field relay opens up, disconnects the
field
> and the there is no output from the alternator, so the battery is not
> overcharged. AFTER the alternator field is energized it can produce enough
> output that it then keeps the regulator contacts closed by itself.
>
> All you need is an alternator and an external battery to get started. If
you
> don't have a battery, you can use a generator and jump start the vehicle
(if the
> regulator is set up properly). But I still don't understand the
circumstances in
> which you would need more than one alternator or generator. Are you trying
to
> get rid of the battery?
>
>
> Comments??
>
> Jon Elerath
> jelerath@us.ibm.com
>
>
>
> George Long <longgw@nni.com> on 07/06/99 12:36:00 PM
>
> Please respond to George Long <longgw@nni.com>
>
> To: "oletrucks@autox.team.net" <oletrucks@autox.team.net>
> cc:
> Subject: [oletrucks] an electrifying idea
>
>
>
>
>
> I want to throw an idea out and see if anyone has a suggestion:
> to get optimum efficency, offroader and racer will run two alternators.
> My idea is to run both an alternator and a generator.
>
> reasons for this set-up are on an alternator system you can run
> a car with little or no charge in the battery as long as you get a
> jump but it will not charge thw battery. with a generator you cannot
> run the car without the battery or with very little charge. but the
> generator will charge a battery if there is sufficent energy to keep
> the motor running does anyone have any ideas to make this setup
> work or should i start messing around with wires, any and all input
> will be greatly appreciated.
>
> Nate Long
> 54 3600
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
>
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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