Re: automotive alternators, three phase, RSG

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "brian by way of Terry Fritz <twftesla-at-uswest-dot-net>" <ka1bbg1-at-mcttelecom-dot-com>

ok, ford alternators generally 5 poles 3 phase,chevy 7 or 14 poles 3
phase,chrysler 5 poles 3 phase.....I rebuilt alternators and starters for 12
years and would answer questions off board .. cul brian
ka1bbg1-at-mcttelecom-dot-com
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, January 26, 2001 6:19 PM
Subject: RE: automotive alternators, three phase, RSG


> Original poster: "David Dean by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<deano-at-corridor-dot-net>
>
> Hi
>
> >
> > The NST won't put out much current (the frequency will be higher
> > than 60 Hz
> > from the car alternator so the leakage inductance impedance will be
higher
> > in proportion... I think they run several hundred Hz.. Anybody know how
> > many poles the typical alternator has?
> >
>
> I don't know if there is a "Typical" number of poles...
> I have a Leece-Neville alternator that has 36 poles (12 * 3) and is delta
> connected
> although the book I have shows a neutral connection.
> And a GM alternator that has 21 poles (7 * 3) and is wye connected.
> I thought I had a Ford alternator apart on the shelf, but if it's there, I
> can't find it.
> I don't have a Chrysler alternator.
> I would expect to find the number of poles varies with the application
just
> as much as other specifications do.  They do put out fairly high
frequency,
> though, because they are normally driven at around three times the engine
> RPM so as to be able to charge at idle.
>
> Also it is quite possible to get higher voltage out of an automotive
> alternator once you've gotten rid of the regulator. I had a little yellow
> box under the hood of my 1971 GMC that had a toggle switch, a large wire
> wound resistor, a voltmeter (red, voltage too low, green voltage OK, red,
> voltage too high) and a duplex outlet. You just cut the wiring harness
> between the alternator and the regulator and hooked this thing in there
and
> with the switch in one position the alternator and regulator worked
> normally. When you threw the switch the other way the regulator was cut
out
> of the circuit and replaced by the resistor, and the output of the
> alternator was disconnected from the battery and connected to the duplex
> receptacle. Then you adjusted the idle speed to about 1200 RPM and the
thing
> would power a drill or saw or just about anything you wanted to plug into
it
> that would run on 110 to 120 volts and had brushes. (universal motor) It
> proved to be quite a handy gadget. It did not like driving through deep
> water though, Ha, Ha.
>
> Later
> deano
>
>
>
>