Jim's Collection Of Understandings

[Jim Mac]

This thread is meant to document my conclusions of various effects and simplify understanding for myself.  I often break it down to easy to follow rules so it's clear to me.  I do not guarantee absolute accuracy, but these findings MAY help others.  

I will be updating this thread from time to time, as I have a LOT to put here.. Questions are fine, but I ask this thread be kept free of opinions and other effects / understandings as it is MY Documentation log.   If you wish to start a log or show effects, please do so in a dedicated thread.


Flux Cutting Polarity and Current Direction!

This first conclusion is rather simple, but to my surprise, today I noticed even an advanced researcher seemed not to fully grasp this..  So here goes- as simple as I can describe..

Red Magnet Passes PURPLE Side of Wire First..  Induced Current and Polarity Is $A   And Current Direction is $A.

   

Red Magnet Passes YELLOW Side of Wire First..  Induced Current and Polarity Is $B   And Current Direction is $B.

   

Wire is wound into Coil..  Passing Magnet Passes Purple Side FOLLOWED By Yellow Side. Polarity and Current Direction is Now $A Followed by $B.

   

You should be able to follow this logic.  A single magnet sweep passes 2 different sides of the same wire in 1 pass!  

The Zero Crossing in the middle is NOT because some resistance is draining the current.  The Zero Crossing in the coil's center occurs because it is FORCED to Zero because a Mandatory Polarity Flip is in progress..  And the polarity flip was caused because the magnet officially crossed the SAME CONDUCTORS BOTH DIRECTIONS..

Hope that makes sense..

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Yes these documented effects aim to mostly be short and sweet like this style above.  Clear, some kind of animation or video, and easy to follow..  But some more advanced stuff may get more complicated as needed.

[Jim Mac]

This Next Understanding I uncovered is fundamentally correct and portrays a ground-shaking view that textbooks do not cover.  I wound quantify this view as "the correct microscopic description of induction."  

It may not immediately sink in why this understanding is so powerful, but once one understands what is portrayed below, the entire working regime transformers and other induction regimes become much clearer.



Reactance Dampening is the Power Gate

1. The Starting State (Primary Coil)
Point 1: An AC-powered coil placed within a completely closed magnetic core will exhibit a high amount of Primary Reactance.

Logical Effect: High reactance severely limits the amount of current that the coil can draw from the AC power source.

2. Introducing the Secondary Interaction
Point 2: When a secondary coil, connected to a load, is placed on the same closed core, the resulting current in the secondary coil creates a Secondary Magnetic Field

Logical Effect: This Secondary Magnetic Field is opposing the magnetic field of the primary coil, which causes the Primary Reactance to immediately drop.

3. The Core Logical Conclusion

Point 3: Since the current the primary coil draws from the source is inversely tied to its reactance, the entire amount of output power delivered to the load is strictly and directly determined by the amount of Primary Reactance that is successfully opposed (cancelled) by the Secondary Current.

The Final Logical Conclusion

The cancellation of Primary Reactance acts as the adjustable gate that dictates how much real power is released from the source into the load. The precise amount of power this gate permits to flow is determined by the energy demand the load requires.

The New view of Induction (by Jim Mac)

This view dictates that in a magnetically coupled circuit (like a transformer), the energy transfer is not a passive draw of power from the primary source, but is an active, instantaneous negotiation where the Secondary Current is dictated by how much reactance was cancelled in the primary.

[Sandy]

Hi Jim. I have thought about this a lot in the past and relating to transformers, it makes sense that a "change in reactance" or "modulation of inductance" is the mechanism for power transfer. But how does this relate to an air core PM alternator, where literature describes magnetic lines of flux cutting conductors to induce a voltage? Do you see two completely different mechanisms at play or are they both the same phenomenon in your view?

[Jim Mac]

Hi Jim. I have thought about this a lot in the past and relating to transformers, it makes sense that a "change in reactance" or "modulation of inductance" is the mechanism for power transfer. But how does this relate to an air core PM alternator, where literature describes magnetic lines of flux cutting conductors to induce a voltage? Do you see two completely different mechanisms at play or are they both the same phenomenon in your view?

Hi Sandy,

Personally I see this true in all induction systems.  The source sets the output maximum limit and the dampening of reactance sets the amount of real power delivered to the load

Air Coil Induction-  Even an air coil has reactance, but much less than a closed core coil.  Uncoincidentally, an air coil's induced output is usually less than a cored coil.  The premise holds true, since an air coil's reactance is lower, there is less reactance to dampen, resulting in less output.

Alternator / Generator-  Reactance manifests regardless if a coil is induced or powered directly. This reactance is dampened by the physical rotating magnetic rotor through opposition of fields (drag).  If you remove drag from a generator, reactance increases and output lowers accordingly. 

The magnetic field cutting the coils lines determine the ceiling of potential power output - as this is now the source. But the dampening of that reactance (through lenz drag) is the gate that acts as the throttle for output current.

If people succeed at eliminating drag, they would be essentially be removing the throttle control and the engine would be stuck on idle.  In my view, drag should not be removed, it should be replaced.

[nagual]

If a non-inductive iron core coil is made up of a forward winding and a reverse winding, would it still produce a magnetic field entering and exiting from the center and both ends — and is the magnetic field established instantaneously as soon as the current is switched on?

[Jim Mac]

Hi Nagual,

I can only answer this based on assumptions because I have not spent a lot of time studying such configurations.

My assumptions are, if the core is ferrous, yes you will get one magnetic pole in the center and 2 like poles on either end. Since 2 like poles are also being produced in the metal core towards each other, there would be a reluctance change within the core that would work to dampen reactance.  So the manifestation of the magnetic pole would most likely be somewhat quicker and more pronounced in that respect. 

To verify this, one would need to wind 2 cores.  One with a regular coil, the other with your proposed setup.  Making sure the wire length, turns, and cores are identical between the two units.  Then power each unit from an identical AC source while monitoring input current.

My assumption is the coil with 2 distinct counter-wound sections that is bucking in the middle will draw more current than the standard coil, and this would be the result of the two like polarities bucking (opposing each other) which will act to dampen reaction in each coil. (actually I am quite sure of the results as I have done it)

This line of thinking can get quite interesting to design electromagnetic machines in unique configurations that utilize these geometries. But like all projects, other nuances often get overlooked or sneak in