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DC Machines: Armature and Commutation by Marvin Lira is a document available to read on EtoBox.
What is DC Machines: Armature and Commutation about?
1. The document discusses DC machines and their armature windings. It shows diagrams of a DC machine armature winding with a commutator and brushes, and the current directions for two positions of the armature. 2. It also shows a waveform of the current in an armature coil with linear commutation, which ideally should reverse linearly with time to prevent sparking at the brushes. 3. The document derives basic equations for analyzing DC machines, relating electromagnetic torque and generated voltage to arm
- Author
- Marvin Lira
- Language
- EN