Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search
« previous next »
Pages: 1 ... 30 31 32 33 34 [35] 36 37 38 39 40 ... 54   Go Down

Author Topic: Feedback To Source  (Read 389024 times)

nievesoliveras

  • elite_member
  • Hero Member
  • ******
  • Posts: 1996
Re: Feedback To Source
« Reply #510 on: May 13, 2009, 10:53:41 PM »
Quote from: Pirate88179 on May 13, 2009, 09:49:51 PM
Jesus:

Maybe try sticking it outside in the sunshine for a bit?  The solar heating might just do the final curing for you.  Nice job there.

Bill

Thank you @pirate !

Congratulation for your success. If not were for @jeanna that reminded you that you already had the solution with the parallel supercaps, you would still be trying to figure out something that you already knew.

I have no @jeanna to help me remember something that already I know to solve my quest.

Jesus
Logged

Cap-Z-ro

  • Hero Member
  • *****
  • Posts: 3545
Re: Feedback To Source
« Reply #511 on: May 14, 2009, 12:15:10 AM »
Automotive repair fiberglass resin is the best thing for making that type of commuter jesus.

It hardens very quickly.

Regards...

Logged

johnnymx

  • Newbie
  • *
  • Posts: 7
Re: Feedback To Source
« Reply #512 on: May 14, 2009, 12:36:24 AM »
i building a pulse motor i use this setup
it runs with very nice torque but i don't know
how to measure hp i use 1000 volt PwR supp.
some body can help me
Logged

nievesoliveras

  • elite_member
  • Hero Member
  • ******
  • Posts: 1996
Re: Feedback To Source
« Reply #513 on: May 14, 2009, 03:44:16 PM »
Quote from: Cap-Z-ro on May 14, 2009, 12:15:10 AM
Automotive repair fiberglass resin is the best thing for making that type of commuter jesus.

It hardens very quickly.

Regards...

Thank you @capzro !
If I had knew I would have bought that fiberglass resin.
The commutator is still sticky.
Maybe I should begin a new one and buy the fiberglas resin with the money from my next temporay job.

Jesus
Logged

nievesoliveras

  • elite_member
  • Hero Member
  • ******
  • Posts: 1996
Re: Feedback To Source
« Reply #514 on: May 14, 2009, 03:49:07 PM »
Quote from: johnnymx on May 14, 2009, 12:36:24 AM
i building a pulse motor i use this setup
it runs with very nice torque but i don't know
how to measure hp i use 1000 volt PwR supp.
some body can help me

Thank you @johnnymx !

I have never measured the horse power of a motor.
Honestly, I dont know how to do it.
There are people on the forum that know how to do it.
Lets hope that they answer your question and help you.

Jesus
Logged

Paul-R

  • Hero Member
  • *****
  • Posts: 2086
Re: Feedback To Source
« Reply #515 on: May 14, 2009, 04:29:26 PM »
Quote from: nievesoliveras on May 14, 2009, 03:49:07 PM
Thank you @johnnymx !

I have never measured the horse power of a motor.
Honestly, I dont know how to do it...
The motor needs to be coupled up to a load of some sort.

You may then:
1. measure the current going to the motor
2. measure the voltage across it
3. Multiply these together to get the power.

But if you have weird stuff going on, like spikes, phase differences between
the voltage and the current, it might be better to use a "prony brake":
http://en.wikipedia.org/wiki/De_Prony_brake
http://www.tpub.com/content/engine/14037/css/14037_53.htm
Paul.


Logged

nievesoliveras

  • elite_member
  • Hero Member
  • ******
  • Posts: 1996
Re: Feedback To Source
« Reply #516 on: May 14, 2009, 10:41:13 PM »
Quote from: Paul-R on May 14, 2009, 04:29:26 PM
The motor needs to be coupled up to a load of some sort.

You may then:
1. measure the current going to the motor
2. measure the voltage across it
3. Multiply these together to get the power.

But if you have weird stuff going on, like spikes, phase differences between
the voltage and the current, it might be better to use a "prony brake":
http://en.wikipedia.org/wiki/De_Prony_brake
http://www.tpub.com/content/engine/14037/css/14037_53.htm
Paul.

Thank you @paulr !

I do expect that this answer can help on knowing the horsepower of the cap discharge motor posted above.

Jesus
Logged

Paul-R

  • Hero Member
  • *****
  • Posts: 2086
Re: Feedback To Source
« Reply #517 on: May 14, 2009, 11:03:01 PM »
Quote from: nievesoliveras on May 14, 2009, 10:41:13 PM
Thank you @paulr !

I do expect that this answer can help on knowing the horsepower of the cap discharge motor posted above.

Jesus
cap discharge.... that sounds like a case for putting a drum on the motor shaft, and running a leather strap with spring balances.

If you visit your local school and ask to speak to the Head of Physics, they might have a prony brake that you could borrow for a couple of weeks.
Paul.
Logged

johnnymx

  • Newbie
  • *
  • Posts: 7
Re: Feedback To Source
« Reply #518 on: May 15, 2009, 02:39:15 AM »
i don't think this formula apply to my motor thanks a lot anyways
Logged

nievesoliveras

  • elite_member
  • Hero Member
  • ******
  • Posts: 1996
Re: Feedback To Source
« Reply #519 on: May 15, 2009, 02:55:43 AM »
@all

These are the photos of the commutator and brushes assembly.
I used iron wire instead of strips of copper as bruhses.

Next step is to add a locking nut after testing for the right way to put the commutator in relation to the magnets. The timing.

Other thing is the wiring configuration and to repair the pulse motor parts that are loose because of the handling.

Jesus
Logged

Pirate88179

  • elite_member
  • Hero Member
  • ******
  • Posts: 8366
Re: Feedback To Source
« Reply #520 on: May 15, 2009, 03:03:15 AM »
Jesus:

That looks really good.  You are like me, we have to work with what we have and can afford.  To me, that adds an additional challenge which I actually like sometimes when it works.  That is a nice job you did on those.

Bill
Logged

nievesoliveras

  • elite_member
  • Hero Member
  • ******
  • Posts: 1996
Re: Feedback To Source
« Reply #521 on: May 15, 2009, 03:32:14 AM »
Quote from: Pirate88179 on May 15, 2009, 03:03:15 AM
Jesus:

That looks really good.  You are like me, we have to work with what we have and can afford.  To me, that adds an additional challenge which I actually like sometimes when it works.  That is a nice job you did on those.

Bill

Thank you @pirate !

Jesus
Logged

Paul-R

  • Hero Member
  • *****
  • Posts: 2086
Re: Feedback To Source
« Reply #522 on: May 15, 2009, 04:13:42 PM »
Quote from: johnnymx on May 15, 2009, 02:39:15 AM
i don't think this formula apply to my motor thanks a lot anyways
The electrical solution - No, it won't. But the mechanical prony brake should
do the business.

The other possiblitiy is to couple the motor to a small traditional generator,
fix that to a resistive load, and measure the current to, and voltage across that
resistive load.
Logged

johnnymx

  • Newbie
  • *
  • Posts: 7
Re: Feedback To Source
« Reply #523 on: May 16, 2009, 12:27:19 AM »
thanks paul
i try with a.c. motor like rotoverter
i will put measurements here
Logged

nievesoliveras

  • elite_member
  • Hero Member
  • ******
  • Posts: 1996
Re: Feedback To Source
« Reply #524 on: May 16, 2009, 11:42:51 PM »
@all

Two more photos of the switcher assembly progress.

Jesus
Logged
Pages: 1 ... 30 31 32 33 34 [35] 36 37 38 39 40 ... 54   Go Up
« previous next »