Re: [EVGRAY] Coils cw or ccw. Instead use dot convention.

Body

Ole!  Nice try but no cigar here.  Please rethink your scenario. At 
first appearance to the neophyte, that does not understand mirror 
symmetry and total phase cancellation, your solution seams like a 
winner. NOT!  After studying Tesla's huge pancake coil and how it worked 
I built my two counter wound coils each with an impedance of 8 ohms.  
You absolutely have to have the mirror symmetry in order to totally 
phase cancel the vectors of the AC driving signal.  Think about the 
traveling AC sine wave over the two coils in mirror proximity. 
Supposedly electrons travel 11.75 inches / nano second. Lets realize 
that each foot of wire traveled there is a phase shift in the AC sine 
wave that absolutely has to be perfectly mirrored to effectively phase 
cancel the shifting phase angles of the two vectors.  I have been there 
and done this and it works.  Example was the two coils I built and by 
shear luck got perfect symmetry and cancellation resulting in no vectors 
and what I perceived as a longitudinal output with no magnetic field nor 
electrical field!  Think about this!!


On 9/30/2018 6:01 AM, [email protected] [EVGRAY] wrote:
>
> I'm wondering why people here discusses winding directions of coils.
>
> The easiest way to wind coils is to wind all of them in the same 
> direction. Then when the field or phase is to go in the opposite 
> direction just switch around the pair of wires going to that 
> particular coil. That's the way it is normally done which also 
> prevents unwinding one coil while winding the next coil on the same 
> bobbin. Use the dot convention to mark the ends of the wires and then 
> just switch the sets of wires that are to be of opposite phase. Place 
> the dots in all start ends or alternatively in all finish ends of 
> coils wound in the same direction.
>
>
> The Dot Notation and Dot ConventionTransformer Phasing: he Dot 
> Notation and Dot Convention
> The Dot Notation and Dot Convention
>
>
> Source of the figures: 
> https://www.electricaltechnology.org/2013/12/transformer-phasing-the-dot-notation-and-dot-convention.html
>
> Regards
> Ole
>
>