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What is Understanding Armature Reaction in DC Machines about?

1) When current flows in the armature windings of a DC machine, it produces its own magnetic field that distorts the original magnetic field from the poles, called armature reaction. 2) Armature reaction has two effects - it distorts the main flux through cross-magnetization and weakens the main flux through demagnetization. 3) With the brushes located at the geometrically neutral axis, there is only distorting effect but no demagnetizing effect. Shifting the brushes introduces both effects, with their

Author

annaldasrajkumar

Language

EN