i would like to add perspective... from what i understand this photo is of stan's alternator?
To me it looks like the winds only skip one cavity rather then 2 per loop... below is a language im making for relating winds to the rotor poles...
Standard 3 phase wind..
123 equals phase 12and 3
3 phase stator sequence
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3
numbers in sequence = 36.. since 36 cavities for a stator.. each increment is 10 degrees 10degrees x 36 cavities = 360 degrees
they say this phase arrangement provides 3 phases that are 120 degrees out of phase from each other.. as you can see by the sequence the phases are sitting 10 degrees apart.. so where does this 120 degree phase difference come in?
lets think about rotor poles..how many? ford alternator has 6 north and 6 south poles.. total is 12 poles..
Here is a symbolization of the 3 phase sequence while showing pole position..
+ symbol equals position of positive poles peak..
- symbol is the position of the negative poles peak
i will show the position of the poles during the peak of phase 2 output
1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3
+ - + - + - + - + - + -
So as you can see the 12 poles line up over each cavity containing phase 2
so that being said the there are 3 sets of winds arranged to where they are peaking "sequentialy" cycling 123 this is where the cycle (360) is diveded by 3 to get 120 degrees out of phase..
all this being said let me paint the picture for what i see in this pic and how i see it in relation ship to the rotor poles
i dont see it being 3 phase.. i see 2 phases
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2
+ - + - + - + - + - + -
now realize the significance in this.. in a 3 phase setup the each phase is getting hit with the peak of both north and south pole fields of influence "simultaneously"
but in a 2 phase arrangement south pole is enteracting with phase 1 while north is interacting with phase 2..
if we are cycling 2 peaks rather then 3 does this mean that the 2 phases are 180 degree out of phase rather then 120?
if you were able to pulse the alternator at a 50 percent duty cycle you might be able to tune into the alternator to where your only pulsing primary when positive pole is over phase one and the negative pole over phase 1.. (a positive and negative peak on separate phases..
you would think if you were to apply 100 percent duty to the primary that the alternators pulse output should be like the steam resonator.. have 2 ac signals that are 180 from each other...
