Discussion about the Lockridge Device

[Ufopolitics]

Hi UFO!

On your slide with the armature which has slots for the winding, the magnetic flux through the armature core is not correct.

@rakarskiy ,

First, my post was not related to a Motor, but SPECIFICALLY FOR A DYNAMO AS GENERATOR

(Did you READ my Image TITLE??!!)

As the "magnetic flux" flow within the Armature Core has NOTHING to do with the type of Armature is being used...it could be a Gramme Ring, a Drum Armature or a Salient Pole design, like shown on my post.
What I CARE ABOUT, are the TWO MAGNETIC POLES (NORTH &SOUTH) ORIGINATING ON ARMATURE!!!

AS IMAGE BELOW, RELATES TO A DYNAMO, BUT!...USED AS A MOTOR...AND IT IS COMPLETELY OPPOSITE AS WHEN DYNAMO IS USED AS A GENERATOR, RELATED TO ARMATURE MAGNETIC POLARIZATION.

****************************

HOWEVER, the MAIN PART on my Post is about the MAGNETIC FIELD DISTURBANCE ON ARMATURE ON A DYNAMO WORKING AS GENERATOR...NOT AS A MOTOR!!
that FIELD DISTURBANCE originates the High and Low Areas of INDUCTION, as IT generates the Plane of MAX Induction, and the plane for setting of brushes for no sparking (COMMUTATING PLANE) [LOW INDUCTION]

Plus, the ARMATURE POLARIZATION OF THE FIELD WHEN DYNAMO-GENERATOR IS LOADED.

And, rakarskiy, please...you know me very well from Energetic Forum, you know about my Asymmetrical Electrodynamic Machines...and so on and on...

OR YOU DON'T KNOW ABOUT THEM OR ANY OF MY WORK?

So, why do you do this type of posts, like I would be a "newbie" or a "rookie" in Electrodynamic Machines knowledge, and I am going to "learn" from you?? ...is it due to your bad translation?

Your type of post, trying to "CORRECT ME" on how a Brushed Motor Works is really FUNNY MAN!!

...not to call it something else

Ufopolitics

[Ufopolitics]

Hello All,

Sometimes "interruptions" bring some good things as to make it even clearer, as it may have not been explained well enough before (by me)

So, I did another IMAGE:

SO, ABOVE IS A DYNAMO AS A GENERATOR (NOT AS A MOTOR) DISPLAYING ARMATURE MAGNETIC POLARIZATION BASED ON "NORMAL" PLANES (NOT THE REAL WAY IT TAKES PLACE, BUT THE "IMAGINARY" IN AN IDEAL SITUATION WHERE THERE ARE NO MAGNETIC DISTURBANCES...

So, Now I have taken OFF: Brushes, Type of Armature Core, No Flux Lines, No Magnetic Disturbances...then it is the BASIC ARMATURE POLARIZATION WHEN GENERATOR IS LOADED.

Do I have to remind you that in a Dynamo Generator we do NOT INPUT POWER to the BRUSHES, BUT WE TAKE THE POWER FROM BRUSHES?...

So, the Armature Polarization on a DYNAMO AS GENERATOR comes from INDUCTION GENERATED ON ITS COILS, WHEN PASSING THROUGH THE MAGNETIZED STATORS AS SEEN ABOVE, RELATED TO THE DIRECTION OF ROTATION, AND ONLY WHEN IS LOADED.

WHEN GENERATOR IS NOT LOADED, ARMATURE WILL NOT HAVE A FIELD, THEN, NO MAGNETIC POLARIZATION, ZERO!...NO MATTER HOW FAST S ROTATING.

So, it DOES NOT MATTER WHERE WE SET BRUSHES, POWER WILL COME OUT...MAYBE WITH SPARKS, A LOT, LESS OR NONE,  BUT THERE WOULD BE POWER TAKE OFF AT BRUSHES AT ANY POINT ON THE 360º OF COMMUTATOR.

As explained before, here I am using ONLY the NORMAL PLANES, which means are the IDEAL AND THEORETICAL SITUATION to be used just as a REFERENCE GUIDE to then show the REAL WAY IT TAKES PLACE AFTER MAGNETIC DISTURBANCES ARE PRESENT.

So, whenever we rotate this Dynamo with an EXTERNAL ENGINE IN CLOCKWISE DIRECTION (ARROW SHOWN), and we LOAD IT, we get this Magnetic Polarization on Armature, which obviously will oppose rotation...this is called BACK ELETRO-MOTIVE FORCE.

This is based on Hawkins Book, not me...

Regards

Ufopolitics

[hiwater]

So, whenever we rotate this Dynamo with an EXTERNAL ENGINE IN CLOCKWISE DIRECTION (ARROW SHOWN), and we LOAD IT, we get this Magnetic Polarization on Armature, which obviously will oppose rotation...this is called BACK ELETRO-MOTIVE FORCE.

Hi UFO    If the geometry is set right in side the case.  Then the generator should rotate the direction of the bemf. So the load actually runs the machine. The resistance of the load would dictate how strong the magnetic flux in the feild pole and armature would be then?

I was thinking on how many rpm it would have. 

[Ufopolitics]

So, whenever we rotate this Dynamo with an EXTERNAL ENGINE IN CLOCKWISE DIRECTION (ARROW SHOWN), and we LOAD IT, we get this Magnetic Polarization on Armature, which obviously will oppose rotation...this is called BACK ELETRO-MOTIVE FORCE.

Hi UFO    If the geometry is set right in side the case.  Then the generator should rotate the direction of the bemf. So the load actually runs the machine. The resistance of the load would dictate how strong the magnetic flux in the feild pole and armature would be then?

I was thinking on how many rpm it would have.

Hello Hiwater,

Yes, I was about to make a post to explain better how the Field is displayed on a Dynamo as Generator...but I will answer to your questions first.

It is exactly as I described on my post above, so, the Magnetic Polarity on the ARMATURE would be DICTATED by the ROTATION DIRECTION ONLY!!
NOT BY THE BRUSHES AT ALL, ONLY WHEN DYNAMO IS USED AS MOTOR, THEN THE BRUSHES PLANE AS POWER INPUT (NOT OUTPUT) WOULD BE DICTATING THE ARMATURE MAGNETIC POLES.

Yes, on a Dynamo-Generator it depends DIRECTLY on the LOAD WATTAGE you are adding to make the Armature Field Stronger or Weaker.

When you LOAD a Dynamo-Generator you are CLOSING THE ARMATURE OUTPUT CIRCUIT FROM ITS BRUSHES, so, it becomes a "New ADDED Circuit" which have an EXTERNAL LOAD and wires, and a Magnetic Field is then generated at Armature.

Yes, Resistance will dictate the strength of the Armature Field...since it is INVERSELY PROPORTIONAL to CURRENTS. So, the more Resistance the less Currents and vice versa.

Speed is just the resultant force (Torque) required, according to your load, to maintain a rotation constant and in order that speed is compensated with coils timing, so they will not overheat and burn. 

Regards

Ufopolitics

[Ufopolitics]

Hello All,

Ok, after yesterday's discussion I found where "our problem in understanding" about  these differences are coming from...

We have to realize that a Dynamo Generator and a Dynamo as a Motor are TWO COMPLETELY DIFFERENT MACHINES.

Even though, we may have BOTH SYSTEMS on the same Machine, meaning, we can operate a Dynamo as BOTH, a Motor and a Generator.

However, when it comes to VISUALIZING the MAGNETIC FIELD GENERATED ON A DYNAMO ARMATURE, only there we realize how different Both Systems (Motor and Generator) are.

1- DYNAMO AS A MOTOR: We INPUT POWER TO BRUSHES, so, this means that BASED ON BRUSHES PLANE ANGLE AND ELECTRIC POLARIZATION, WE ARE DICTATING HOW THE ARMATURE MAGNETIC FIELD BE, THEN HOW IT WILL ROTATE, CW or CCW, MORE TORQUE, LESS SPEED, LESS TORQUE, MORE SPEED, etc.

2- DYNAMO AS A GENERATOR: We TAKE OFF POWER FROM BRUSHES, so, here the BRUSH POSITIONING AND THEIR PLANE AND ANGLE WILL NOT DICTATE HOW THE ARMATURE MAGNETIC FIELD AND POLARIZATIONS WOULD BE.
THE ARMATURE FIELD AND POLARIZATION WILL BE DICTATED BY THE ROTATION DIRECTION AND THE SPEED, JUST BECAUSE THE MORE SPEED THE MORE FIELD DISTORTION, HENCE MORE ADVANCE OF THE ARMATURE FIELD RELATED TO THE NORMAL PLANES.

On the Figure above same as I posted previously...no brushes at all here since it does not matter, because it is about a Dynamo as Generator.

Point is, we are rotating Dynamo-Generator by an external Machine CLOCKWISE...SO, please note how the Armature Field displays.

Now, look at image below:

It is the SAME DYNAMO-GENERATOR!!...We have just REVERSED ROTATION TO COUNTERCLOCKWISE.
So, what happens?...

ARMATURE FIELD MAGNETIC POLARITY HAS ALSO REVERSED. SO, WHEREVER WE HAD BRUSHES SET AT, WHERE WE WERE GETTING POSITIVE, NOW WE WILL BE GETTING NEGATIVE...AND SO WITH OTHER BRUSH.

A VERY IMPORTANT PART TO UNDERSTAND HERE, IS THAT IN BOTH SYSTEMS ON A DYNAMO, MOTOR AND GENERATOR...

THE ARMATURE FIELD IS ALWAYS STATIC, ON A DYNAMO AS MOTOR OR AS A GENERATOR!!

On the Generator system, the Armature Field tends to generate higher disturbances according to speed of rotation, always these disturbances ADVANCE in the same Rotation Direction...BUT NOT MUCH, just a few degrees.

Brushes also can be set on an Automotive Dynamo on the NORMAL PLANE OF MAXIMUM INDUCTION (Plane shown on Both Images) for example: My FORD Dynamo that I have shown diagrams and videos.

Hope you understand this better now, because I honestly think it is "confusing" as we are used to move brushes plane to dictate field on armature whenever it comes to DC BRUSHED MOTORS.

Regards

Ufopolitics