Re: More three phase fun...

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Brian" <ka1bbg@xxxxxxxxxxxxx>

Hi, my 12 years rebuilding alternators in past life says, 120 volts leg to
leg. and the frequency is up to around 400 hz if i remember. special stator
windings will get more voltage, Ham radio guy used to wind them for 300
volts ac leg to leg for transmitter power. be glad to answer questions off
group.
ka1bbgatwebryders.net
----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, January 19, 2005 8:46 PM
Subject: RE: More three phase fun...


> Original poster: Jim Lux <jimlux@xxxxxxxxxxxxx>
>
> At 07:36 AM 1/19/2005, you wrote:
> >Original poster: "Steve Conner" <steve.conner@xxxxxxxxxxx>
> >
> > >I certainly have
> > >just playing with my AC car alternator over the years.
> >
> >Hi Harvey,
> >
> >What's the maximum voltage you can get out of a car alternator with the
> >diodes removed? Can it be pushed as far as 200V (between phases which
would
> >be 120V phase to neutral)
>
> Kind of complex question to answer.
>
> 1) What's the insulation breakdown on the windings?  I'd suspect no
problem
> there.
> 2) The max voltage (no load) is determined by the field strength and the
> rotational speed. You'll have to calculate
> 3) Field strength is determined by field current, which in turn is limited
> by thermal dissipation (you can only put so much field current in before
it
> fries)
>
> I have heard of people getting 120V out of car alternators (you used to be
> able to get kits to do this), but I don't know if that was 120V phase to
> phase or 120V phase to neutral.
>
>
>
>