Rotation of Neutral Axis due to Armature Reaction in Brushed DC Machines
Rotation of Neutral Axis due to Armature Reaction in Brushed DC Machines
(OP)
Hi,
I am working on a project which I need a theoretical equation of how much armature reaction rotates the electrical neutral axis in brushed DC generators/motors. I am thinking it will be dependent upon armature flux/current, windings, etc. If anyone can help me out that would be great.
Cheers.
I am working on a project which I need a theoretical equation of how much armature reaction rotates the electrical neutral axis in brushed DC generators/motors. I am thinking it will be dependent upon armature flux/current, windings, etc. If anyone can help me out that would be great.
Cheers.





RE: Rotation of Neutral Axis due to Armature Reaction in Brushed DC Machines
Bill
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"Why not the best?"
Jimmy Carter
RE: Rotation of Neutral Axis due to Armature Reaction in Brushed DC Machines
RE: Rotation of Neutral Axis due to Armature Reaction in Brushed DC Machines
Armature reaction (weakening) sets in when the angle has moved the flux so far that the pole face edges saturate. That effect is sometimes confused with rotation of the neutral axis.
Not so sure if interpoles/commutation poles influences the main field other than locally.
Gunnar Englund
www.gke.org
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