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Author Topic: new here! several questions  (Read 8026 times)

sumhungl0

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new here! several questions
« on: December 23, 2015, 07:59:17 AM »
i have been away from generators and electronics for quite a while but would like to read more about overunity.  i have been an aircraft mechanic for most of my life and learned all about generators and electrical theory, however i have a desk job for the past 5 years and it has been 15 since i went to school for it. i need some refreshing of some things.

enough about me, on with the questions....

when winding a generator coil, i cant remember what creates voltage and current.  is it the bigger the coil wire gauge, the more current it can carry and produce?  and the more windings, the higher voltage?

i have worked on motor generators for powering radar and other aircraft equipment that would take utility power to run the motor but on the same shaft has a generator that produced way more power then what was consumed.  there was no back feeding of power to the motor or charging of batteries for any type of self powering, but i do not see why it could not work.  for the average persons home, why cant something like this work?  why not have a power unit in every home?  i was not thinking that way 15-20 years ago but i sure am now....

what about generator speed/rpm?  every generator ive seen has to be running at high rpm.  what would the coil windings be like for a slower rpm?  is it possable or would you lose production of power?  or would you just make the flywheel/rotor bigger to accommodate more magnets/coils thus giving more pulses for the reduction in rpm?

i have watched everything i could find on youtube so much i think its time to start asking some questions.  any feedback is greatly appreciated.  happy holidays.

garry s

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Re: new here! several questions
« Reply #1 on: February 15, 2016, 10:23:47 PM »
If memory serves me correctly you are right, fatter wire = more amps and longer wire = more voltage

Garry

the_big_m_in_ok

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Re: new here! several questions
« Reply #2 on: February 16, 2016, 04:56:47 AM »


(snip, for brevity)



"enough about me, on with the questions...."

when winding a generator coil, i cant remember what creates voltage and current.  is it the bigger the coil wire gauge, the more current it can carry and produce?  and the more windings, the higher voltage?"
       Generally, yes.   Heavier, larger diameter wire will carry more current.   A bigger-diameter wire has less resistance per foot of length.   Longer lengths of wire mean more resistance in proportion to the length.   Twice the length means twice the resistance.   BUT, in a transformer, more turns in a coil, will give you more voltage compared to the turns ratio between the input to the output.


Quote
"i have worked on motor generators for powering radar and other aircraft equipment that would take utility power to run the motor but on the same shaft has a generator that produced way more power then what was consumed.  there was no back feeding of power to the motor or charging of batteries for any type of self powering, but i do not see why it could not work.  for the average persons home, why cant something like this work?  why not have a power unit in every home?  i was not thinking that way 15-20 years ago but i sure am now...."
       Well, I saw a diagram of a motor that spun a generator---that went to a bigger motor to a bigger generator, and so on.   That's what I saw.   I never had the time or money to test this scenario.  As it is the way I described it here, I don't know if the theory is sound or not.

Quote
what about generator speed/rpm?  every generator ive seen has to be running at high rpm.  what would the coil windings be like for a slower rpm?  is it possable(possible) or would you lose production of power?

       Generators are sized to the motor that powers it, now that I recall.   A generator usually has about 95% the power rating of the motor, on purpose.




Quote
"or would you just make the flywheel/rotor bigger to accommodate more magnets/coils thus giving more pulses for the reduction in rpm?"
       A flywheel can increase average efficiency, but, AFAIK, you can't get overunity using this scheme of operation.


Quote
"i have watched everything i could find on youtube so much i think its time to start asking some questions.  any feedback is greatly appreciated.  happy holidays."
       Sure.   Always glad to try and help.   Read what I wrote and see if it makes sense to you.   More questions?   Sure, just ask.
p.s.
       All I wrote was taken from my personal memory.   I'm 66, now.   And I have a genetic condition that can lead to advancing  memory loss.   Honest suggestions and constructive advice is welcome.

sm0ky2

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Re: new here! several questions
« Reply #3 on: February 16, 2016, 11:58:18 AM »
@the_Big

I believe what he is referring to is not a motor belted to a generator.

but rather, both in the same device.

what it sounds like to me is a standard military issue power amplification dynamo

This is a motor on the outside, but there is not a load placed on the shaft.
rather, inside the diameter of the rotor, is another set of coils that acts as a generator.

This is used to power many of the systems on board warships of the Navy and Airforce.

sumhungl0

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Re: new here! several questions
« Reply #4 on: February 16, 2016, 08:09:55 PM »
@the_Big

I believe what he is referring to is not a motor belted to a generator.

but rather, both in the same device.

what it sounds like to me is a standard military issue power amplification dynamo

This is a motor on the outside, but there is not a load placed on the shaft.
rather, inside the diameter of the rotor, is another set of coils that acts as a generator.

This is used to power many of the systems on board warships of the Navy and Airforce.

didnt know anyone was on here, anything is better then nuttin...

correct sm0ky2.
same device, same shaft.  and that is what i would like to build, but in the form of a low power pulse motor that has more then enough torque to run a generator(same shaft/device) and also be able to run something mechanically off the shaft.  well if needed.  maybe im asking too much. 

so i started messing around and im trying to do some simple testing/build of a pulse motor, small scale.  four half inch neos from old hard drives hot glued to a cd.  using an old cd drive motor and cd holder as a bearing, motor is shot but makes perfect rotation.  reed switch from here. http://www.allelectronics.com/make-a-store/item/rsw-40/spdt-reed-switch/1.html also got a few old coils from toys and such.  tried a few self wound coils as well.  cant get anything to push this past the point of me spinning the disc.  tried different power supplies, 9v battery, 9v/150mA adapter reading 14v output and few AA batteries in series. 

the adapter has enough power to attract the magnets but not very well.  but it also makes the reed switch arc so much that it sticks closed or welds itself together.  what do i do to fix that?  do i need a cap or resistor to help cut down the switch current?  i even made my own reed switch but still same result.  metallic metal from a pipe cleaner attracted to the magnets from the disc and rests against copper wire. 

any help with that would be great?

other then that, thanks everyone for the useful info.  any more advice would be great. 

gonna start ordering parts for a build hopefully this summer.  spools of copper magnet wire are kinda expensive and i wanted to get a few different gauges.  those neo magnets are not cheap either.  anyway, hope to order sum of this stuff soon.

thanks again for answering my questions.   

garry s

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Re: new here! several questions
« Reply #5 on: February 16, 2016, 08:18:58 PM »
Sounds like you are using the reed switch to carry the current ... this never works.
What you need to do is add a transistor to carry the current and use the reed switch to trigger the transistor, you may also need a resistor in there.

When i started i used an old, but new version of, the english SU fuel pump which had a coil and the reed switch and all the circuit that made it work, even then i soon killed the reed and found i had to go buy some really big ones to cope.

Garry

sumhungl0

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Re: new here! several questions
« Reply #6 on: February 16, 2016, 11:40:56 PM »
Sounds like you are using the reed switch to carry the current ... this never works.
What you need to do is add a transistor to carry the current and use the reed switch to trigger the transistor, you may also need a resistor in there.

When i started i used an old, but new version of, the english SU fuel pump which had a coil and the reed switch and all the circuit that made it work, even then i soon killed the reed and found i had to go buy some really big ones to cope.

Garry

nice, thanx for the info.

i can see what you are talkin bout and im thinkin the fuel pump can be replaced by a simple relay to act as a reed.  heres the thing, doesnt sound like you recommend that anyway.  so you think i should use a transistor, got any good advice on what i should look for?  part number?  maybe a video with setup and parts?

i am glad to know that i am not the only one tho.....  ill tell my wife im not crazy...   =)

the reed switches i have from the link above are pretty good right?  that was the biggest current ones they had.  but i know that i can see the spark when it latches and im positive that it is sticking because of the current load.  so you mention using a resistor.  can you jog my memory a bit, is the resistor to limit the base of the transistor or the load/emitter? 

i have seen many videos with a transistor type trigger.  is that the best practice/way?  only reason i was using the reed is because it was simple and i was just tryin for any type of result.  didnt get too far.  maybe i need to order sum transistors, or just scavenge them from old stuff.  i have a lot of old boards.

please let me know, i like where this is going.

and just in case someone whats to know where my inspiration comes from...
primarily these two youtubers:
https://www.youtube.com/user/PMMG4HYBRID
https://www.youtube.com/channel/UCNk6nZuUrTLRnp__hAgAqjw

garry s

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Re: new here! several questions
« Reply #7 on: February 17, 2016, 02:13:29 AM »
I suggest start simple ... the link here has a clear enough view of the transistor circuit for you to start with

https://www.youtube.com/watch?v=8JliEeEKjUI

With this the load is taken by the tranny and the reed is only driving the tranny not the motor.

from there all you need is a diode connected to the + side of the coil so that when the battery is connected there is no reading on the meter and then connect this to a bridge rectifier and then measure the dc coming out of it ... the diode only allows the reverse current to flow back to the charging battery

Once you see there is output without increasing input you will be hooked :)

Garry Stanley

sumhungl0

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Re: new here! several questions
« Reply #8 on: February 17, 2016, 02:27:20 AM »
sorry, i cannot see that video.  blocked in the US, it says. 

thanks for the explanation tho, im gonna start gathering parts to give it a shot.  hopefully this week.  im pretty sure i understand what you are explaining.  i will post back when i get frustrated....  ;)

you said "tranny", that makes me laugh.

thanks again.

garry s

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Re: new here! several questions
« Reply #9 on: February 17, 2016, 05:42:41 AM »
search pulse motor circuit on youtube .... i found a few that clearly show the circuit and some with diagrams

Garry

the_big_m_in_ok

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Re: new here! several questions
« Reply #10 on: February 18, 2016, 11:33:25 PM »
@the_Big

I believe what he is referring to is not a motor belted to a generator.

but rather, both in the same device.

what it sounds like to me is a standard military issue power amplification dynamo

This is a motor on the outside, but there is not a load placed on the shaft.
rather, inside the diameter of the rotor, is another set of coils that acts as a generator.

This is used to power many of the systems on board warships of the Navy and Airforce.
       I didn't forget this post.   What I perceived from your post above was:
The magnets, with the North poles facing outward---and weighing a lot less than the copper coils---are spun on a shaft using only the way, way lighter magnets on the INSIDE of the rotor to be reacted against the stationary 'stator' of the coils that requires a lot less power to input and then get a full power rating from the coils.
       The thing might be...?
The magnets MAY resist the coils---hysterisis?---and this might complicate the generation of power by the fact that it happens?   The resistance may show up as a leading, pushing effect as magnets approach individual coils?

--Lee

sumhungl0

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Re: new here! several questions
« Reply #11 on: February 21, 2016, 11:30:29 PM »
eh, i think you are not getting what i was trying to type out, bigM.

"what it sounds like to me is a standard military issue power amplification dynamo"
correct, this is what i used to work on.

so what i want to learn from this post is to start back at the basics.  i want to start with a low power consuming pulse motor.  when i get that figured out(with your help), i wanna build the generator portion(same shaft), and lastly...... do what the name of this forum means.....  more power then input. 

i have seen so many videos on youtube.  this is nothing new, and has been accomplished before. 

why isnt there a motor-generator that can run a house off the grid?  its there, but i cannot spend several grand to purchase a unit from quantamagnetics.com.  nor would i personally want to.  i know hes gotta make his money but im not wealthy and i would rather make my own unit.

heres where im at:
so far i have a cd with 4 neos from a few old harddrives.  that is my rotor.
i mounted it to a burned up cd rom motor because the cd holder was still intact.
thats about it at the moment.

i have reed switches(mentioned above) and they keep sticking closed because of the current running through them in series with the coil.  yes, really simple circuit is what i started with.  i am now trying to scavenge some transistors to use for the reed switching portion to limit the current on the reeds.

i have wound a few coils that are very very small, just for testing.  this might be another problem im having.  i still need to purchase a few spools of magnet wire.  i was just using a few short strands that i had around.  i will be buying at least 2 different gauges of magnet wire spools but "damn" they aint cheap.  any advice on this would be great?  site to purchase?  recommended gauges?

the design i will try to pursue is similar to quantamagnets.  probably 6 magnets on the rotor. 

im not even close to that point yet tho. 
i have to overcome the reed/current problem, or figure out another way, timing/commutator maybe.  would like to stay away from a commutator set up tho. 
i still need to figure out the best coil type to use, how many windings of what gauge, bi-filar or not.  duno how i feel about bi-filar yet, duno enough about em yet.

i havent had much success with the cd project yet to move on to the main project.  i have not had a successful run of this motor yet.  pretty sure it is because i half-@s$ the coils.  two test coils, about 3ft of magnet wire, one wound around my pointer finger and the other around a screw driver.  i can feel the magnetism from each but i never get any rotation from the rotor.  im just holding them in place also. 

so that is where im at, and where i want to go.....
i wanna stop paying power bills.

and thanks again for everyones input.

sumhungl0

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Re: new here! several questions
« Reply #12 on: February 21, 2016, 11:48:28 PM »
here is what im planning to buy.

magnets
http://www.magnet4less.com/product_info.php?products_id=1158

maybe some different variations.  comments?  advice?  cheaper site?


magnet wire
http://www.magnet4less.com/index.php?cPath=9_20

not sure on the gauges yet.  advice?  gonna need to wind the pulse motor and generator coils.  what gauge do you want for pulse motor/generator?  im sure the pulse motor needs to be more windings of smaller gauge and generator less windings of thicker gauge.  correct?

garry s

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Re: new here! several questions
« Reply #13 on: February 22, 2016, 01:13:34 AM »
Hi You really need to understand basics before you can understand what you are looking for and more so what you find along the way.

http://micro.magnet.fsu.edu/electromag/java/lenzlaw/index.html

This is a good place to start.

Understanding how the coil and magnets interact is the key to these experiments.

Garry

sumhungl0

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Re: new here! several questions
« Reply #14 on: February 22, 2016, 04:48:18 AM »
Hi You really need to understand basics before you can understand what you are looking for and more so what you find along the way.

http://micro.magnet.fsu.edu/electromag/java/lenzlaw/index.html

This is a good place to start.

Understanding how the coil and magnets interact is the key to these experiments.

Garry
perfect, i will get to reading...   thank you sir.