This one is intresting.

[bistander]

Hi citfta,
You might be right. I was forgetting that automotive alternators are designed to output rated voltage at idle speeds, so turning them at 3000-3600 RPM and getting a bit more flux from the field might get near 10x generated voltage. But even neo PMs won't get you 10x flux over a wound field running near saturation.
bi

[pix]

Hi citfta,
You might be right. I was forgetting that automotive alternators are designed to output rated voltage at idle speeds, so turning them at 3000-3600 RPM and getting a bit more flux from the field might get near 10x generated voltage. But even neo PMs won't get you 10x flux over a wound field running near saturation.
bi

Electromotive force induced in the stator windings depends from rotational speed, intensity of magnetic field, length of active conductor,
So, with constant values:  neodymium magnets B=1Tesla, active length of conductors in the stator, your generated voltage depends from variable- rotational speed of alternator.

PS.
Why I choose induction motor? Compare length of induction motor versus alternator 
Longer active length of windings in stator ( more copper )= more electromotive force.

Cheers,
Pix

[Ufopolitics]

WOW!!

It is really great to see some old friends around here!!
Skeptics but still friends from long back ago!!

Anyways, I am not getting involved on this project at the moment....am too busy building a Perpetual Magnet Motor...LOL




Cheers and nice to see you Two together again, Citfta and Bistander!!

It reminds me of old times...



Ufopolitics

[Ufopolitics]

Hello bistander and all.


Sorry to disagree with you Bi but in the normal use of an automotive alternator the output is controlled by the field current which is controlled by the voltage regulator.  There used to be kits you could get to bypass the regulator that would increase the field current so that you could use the output of the alternator to run 120 volt electric drills or saws.  Before the days of all the battery powered tools they were used by contractors on job sites for their power tools.  Of course the power tools had to have brush type AC/DC motors as the output was only DC.


So strong magnets on the rotor can provide 120 volt output without turning the alternator 10 times faster.


UFO I am curious where you got the idea the motor was 2 phase as he plugs it into the same power strip that he plugs the drill in to?


Take care guys,
Carroll

You are right Citfts...it is a Single Phase Motor...
Plus you are also right about voltage regulator and Current regulation on a car Alternator...
Men, I have worked with these small alternators forso long...rebuilding them, testing them, etc,etc...


Nice to see ya around


Regards




Ufopolitics

[pix]

Ok,
Enough to explain you guys why and what.
Time to do some job.
All is boxed  and wired together.
Tomorrow- testing generator mode of 3 phase induction motor with 18 and 30 microfarad capacitors. Just to see and fulfill my curiosity.
Once this is done I am going to strip open one motor and work on the rotor to nicely accomodate most powerfull magnets I can get.
Will post some pictures when done.


Cheers,
Pix