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Showing results 1 to 25 of 1566
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Search: Posts Made By: mbrownn
Forum: Renewable Energy 06-30-2015, 02:01 AM
Replies: 577
Views: 34,847
Posted By mbrownn
I totally agree with you, what I am suggesting is...

I totally agree with you, what I am suggesting is that the reason for this efficiency is the transformer action that powers the rotor.

Is it free energy that is powering the rotor? It depends on...
Forum: Renewable Energy 06-29-2015, 06:45 AM
Replies: 577
Views: 34,847
Posted By mbrownn
Farmhand is quite correct if you look at a...

Farmhand is quite correct if you look at a standard motor, power it in a standard way, and only consider its mechanical output as converted electrical input, and assume it is a closed system. But is...
Forum: Renewable Energy 06-20-2015, 03:59 AM
Replies: 577
Views: 34,847
Posted By mbrownn
I asked for it:rofl: Ill do my best to answer. ...

I asked for it:rofl: Ill do my best to answer.
No one has yet proved what magnetism is, we know it acts as a force and can induce current to flow in a wire. We are also discovering that it is far...
Forum: Renewable Energy 06-20-2015, 02:01 AM
Replies: 577
Views: 34,847
Posted By mbrownn
Is this what is known as residual magnetism? ...

Is this what is known as residual magnetism?
This does make some sense but how does shorting the coil remove magnetism?

I believe that residual magnetism in an armature causes drag.

I have...
Forum: Renewable Energy 06-19-2015, 12:34 PM
Replies: 1,219
Views: 202,961
Posted By mbrownn
It was a long time ago when I wound that...

It was a long time ago when I wound that armature, I think it was 30. It ran on 3 to 4 volts at 4 amps. 4 amps was the limit on my variac. On a more recent armature there was only 2 turns per winding...
Forum: Renewable Energy 06-19-2015, 11:54 AM
Replies: 577
Views: 34,847
Posted By mbrownn
yes. Not sure what you mean, top half of what?...

yes.
Not sure what you mean, top half of what? bottom of what? what do you mean by can? is it the motor case? Try to be specific as its so easy to misunderstand.
Like electricity, magnetism passes...
Forum: Renewable Energy 06-19-2015, 04:54 AM
Replies: 577
Views: 34,847
Posted By mbrownn
It is possible to weaken magnets if you get too...

It is possible to weaken magnets if you get too strong a field in the armature although I doubt you can do it with such a small armature.
Forum: Renewable Energy 06-18-2015, 01:23 PM
Replies: 1,219
Views: 202,961
Posted By mbrownn
Sure, this was the one I had the best results...

Sure, this was the one I had the best results with.
http://www.energeticforum.com/attachments/renewable-energy/15792d1432130996-interesting-motor-img_0007-jpg...
Forum: Renewable Energy 06-18-2015, 10:34 AM
Replies: 577
Views: 34,847
Posted By mbrownn
I think I understand, so you effectively get 40...

I think I understand, so you effectively get 40 turns per coil instead of 20?
Forum: Renewable Energy 06-18-2015, 02:58 AM
Replies: 577
Views: 34,847
Posted By mbrownn
Can you give me a sketch of this?

Can you give me a sketch of this?
Forum: Renewable Energy 06-18-2015, 02:49 AM
Replies: 75
Views: 3,310
Posted By mbrownn
No, Its because the flux is following a contorted...

No, Its because the flux is following a contorted path through the armature, this flux tries to straighten and pushes the armature as it does so.
Magnetic balance would be reached when the armature...
Forum: Renewable Energy 06-17-2015, 03:03 PM
Replies: 1,219
Views: 202,961
Posted By mbrownn
With that motor we are avoiding transformer...

With that motor we are avoiding transformer actions so every segment would be fine, remember this came as a result of my research so I left options to make it what we are talking about now. I would...
Forum: Renewable Energy 06-17-2015, 11:20 AM
Replies: 75
Views: 3,310
Posted By mbrownn
Correct I have to double check with this...

Correct

I have to double check with this too, generally I call generated voltage EMF. BEMF is the voltage generated that opposes a supply emf in a motor.

Im not going to check your...
Forum: Renewable Energy 06-17-2015, 10:45 AM
Replies: 577
Views: 34,847
Posted By mbrownn
The second magnet gives a good return path for...

The second magnet gives a good return path for the flux so the speed goes up and generates more BEMF. The BEMF is what limits the current.
Its the same as with 2 magnets your getting the BEMF. There...
Forum: Renewable Energy 06-17-2015, 04:20 AM
Replies: 577
Views: 34,847
Posted By mbrownn
Try my MADMAG (interesting motor) Use a single...

Try my MADMAG (interesting motor) Use a single magnet set in attraction and a piece of iron or steel set at 90 degrees. Later you could replace the iron with a shoe and coil.

First run it with a...
Forum: Renewable Energy 06-16-2015, 11:16 PM
Replies: 75
Views: 3,310
Posted By mbrownn
I am referring to the device this thread is...

I am referring to the device this thread is about.



Easy to get confused here as we have both motoring functions and generating functions in the same device, just as you do in a universal type...
Forum: Renewable Energy 06-16-2015, 04:18 PM
Replies: 1,219
Views: 202,961
Posted By mbrownn
For my MADMAG (interesting Motor) we may be able...

For my MADMAG (interesting Motor) we may be able to use off the shelf field coils and get reasonable performance. For the self runner, if it is possible and I believe it is, we will need all the...
Forum: Renewable Energy 06-16-2015, 04:07 PM
Replies: 1,219
Views: 202,961
Posted By mbrownn
When we draw current from the generator, it...

When we draw current from the generator, it causes drag, the motor slows and the BEMF in the armature reduces. This allows more current to flow. Also when a load is placed on the secondary of a...
Forum: Renewable Energy 06-16-2015, 03:13 PM
Replies: 75
Views: 3,310
Posted By mbrownn
I think you are overlooking a few points. BEMF is...

I think you are overlooking a few points. BEMF is used as a means of controlling a motor, without it they would tend to accelerate to self destruction. I have taken this control off this device.
...
Forum: Renewable Energy 06-16-2015, 01:09 PM
Replies: 1,219
Views: 202,961
Posted By mbrownn
No problem, its so obvious to me because I know...

No problem, its so obvious to me because I know how it works, but I forget that no one else has seen anything like this:rofl: I will go through it again with this drawing...
Forum: Renewable Energy 06-16-2015, 07:36 AM
Replies: 75
Views: 3,310
Posted By mbrownn
The problem with these windings are reduced...

The problem with these windings are reduced torque, increased BEMF and no possibility of extracting inductive kickback. Its good for speed control and reducing arcing at the brushes. The advantages...
Forum: Renewable Energy 06-16-2015, 02:46 AM
Replies: 75
Views: 3,310
Posted By mbrownn
In this video he shows how to wind the armature....

In this video he shows how to wind the armature. although he connects to the nearest commutator segment instead of at 90 degrees. He also points out one of the compromises in a standard armature...
Forum: Renewable Energy 06-16-2015, 12:12 AM
Replies: 75
Views: 3,310
Posted By mbrownn
Correct, The reason they put an odd number of...

Correct, The reason they put an odd number of coils in the armature is to prevent harmonics and resonances.
Forum: Renewable Energy 06-16-2015, 12:07 AM
Replies: 75
Views: 3,310
Posted By mbrownn
If you use a single magnet to pick up iron and...

If you use a single magnet to pick up iron and compare that with 2 identical magnets stacked together, you find they can only lift the same amount. The only reason they use 2 magnets in a 2 pole...
Forum: Renewable Energy 06-16-2015, 12:01 AM
Replies: 75
Views: 3,310
Posted By mbrownn
The case looks perfect, the brushes will need...

The case looks perfect, the brushes will need some work and I cant really see the armature clearly. 41 commutator segments means the armature cannot be rewound to make a 2 pole simple armature....
Showing results 1 to 25 of 1566

 

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