Author Topic: Custum Alternator how to  (Read 12830 times)

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hydro

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Custum Alternator how to
« on: November 25, 2007, 07:18:46 am »
The alternator on a work bench driven by an 120 volt motor spins well over 1000 rpms!

installation to the car is problematic since the alternator was built around the driver motors rpm's, and not the rpms from the engine. so now the electronics that was built around the driver motor no longer works with the alternator on the car due to lower rpm's.

the factory alternator usually produces a good amount of electricity at around 1000 rpm's or at idle but is still not good enough for the fuel cell. "we need 3k rpm's"

so to solve this problem i have included some pictures, rewiring the alternator will produce over 12 volts at just 180 rpms. i assume the idle speed will now more that triple the output when the alternator has been rewired.

i am not sure of the wire size on the factory alternator, but it is being replaced with 22 awg wire.

it is time for me to rewire my alternator, i will keep you updated.

EDIT, just so you dont have to read this whole thread, we found out that rewiring an alternator was a wast of time, it ups the volts and downs the amps. when on the car it creates plasma. internal arcing inside the alternator is also a problem. later we found we could just add a 3 phase transformer to the alternator to up the voltage.  this was a test for high voltage, after i realized how stupid it was of me to try and make a fuel cell use high volts i quickly realized that the factory alternator was better. the factory alternator is better at 900 rpms than the rewired one is at any rpm.
« Last Edit: January 13, 2008, 18:53:35 pm by hydrocars »

hydro

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Re: Custum Alternator how to
« Reply #1 on: November 25, 2007, 07:22:05 am »
as you can see in the picture, i did not take the time to unwrap and unglue the copper from the stator, i cut it off with a reciprocating saw.
« Last Edit: November 26, 2007, 02:02:36 am by hydrocars »

hydro

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Re: Custum Alternator how to
« Reply #2 on: November 25, 2007, 10:50:59 am »
phase1, it kicked my ass!

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Re: Custum Alternator how to
« Reply #3 on: November 25, 2007, 20:10:48 pm »
Hydrocars,
That is looking very good. You will get higher volts. I am sure.
Its a nasty job to rewind, I suppose.
How did you do it with the long wires?


br
Steve

hydro

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Re: Custum Alternator how to
« Reply #4 on: November 26, 2007, 05:31:46 am »
just got my wiring done and "resoned" in! Don't use this site http://www.mtmscientific.com/rewind.html

just found out they have misleading information after looking at another alternator i had found, i assumed it was wrong so i went and got an identical alternator to confirm, and i was right..

i wasted my time!! there is no information on the internet on how to do this, so i will solve this problem, just great, another delay due to misleading information. my hands hurt :'(

i will keep you undated on the proper way to do this!

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Re: Custum Alternator how to
« Reply #5 on: November 26, 2007, 12:43:02 pm »
just got my wiring done and "resoned" in! Don't use this site http://www.mtmscientific.com/rewind.html

just found out they have misleading information after looking at another alternator i had found, i assumed it was wrong so i went and got an identical alternator to confirm, and i was right..

i wasted my time!! there is no information on the internet on how to do this, so i will solve this problem, just great, another delay due to misleading information. my hands hurt :'(

i will keep you undated on the proper way to do this!

My symphaty.....


hydro

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Re: Custum Alternator how to
« Reply #6 on: November 26, 2007, 21:07:05 pm »
i'm still going to test what it will do and post the results, i also am wiring another one the way i feel it should be wired! , there's many ways to wire them, we will see who's is better, mine or that site...

results coming soon..

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Re: Custum Alternator how to
« Reply #7 on: November 26, 2007, 22:00:16 pm »
Thats the spirit!  ;)