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Mutual Induction of polyphased secondaries.

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  • Harvey D Norris
    The natural effect between primary and secondary should be 90 degrees, which is a sort of neutral point having equal values of both attraction and repulsion
    Message 1 of 1 , Mar 1 10:12 AM
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      The natural effect between primary and secondary should be 90 degrees, which is a sort of neutral point having equal values of both attraction and repulsion forces between the coils. Now presumably since the respective primaries for each secondary are 120 degrees out of phase, the secondaries follow suit and are then also 120 degrees apart in time. HOWEVER since they have(a somewhat distant)mutual induction each sec. phase should be producing a total 30 degrees of opposition between them, and the vector summation with the actual first primary signal would be a signal with 15 degrees between the predictions. In any case the mutual inductance of the secondaries is such that they display two different amperages with consequent voltage rises, in each case the deviance is brought about by the solitary secondary actions on each side vs their dual actions when mutual inductance comes into play, this widens the phase angle by 15 degrees above the starting 120 one. This gives an explanation as to the~ 135 degree situation of the secondary voltages.The mutual induction from the starting secondary to the next secondary causes that secondaries' primary to see an abundance of back emf, beyond that empowered by its source reaction to the local secondary appearence, but now the back emf made by the third "distant" source is added on its reflection, enabling that primary phase to go even lower on its input until it appears to have pulsed down to zero, and now the secondary currents appear as over-unity? When we consider it the ordinary primary connections as its sole source of power. So this illusion is cleared up, during part of the rotation one of the secondaries is overpowering its primary and reversing the normal direction of the power transfer, but this is occuring between phasings.
      HDN back soon with notes
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