What is the term for arcing that occurs between commutator segments?

The term for arcing that occurs between commutator segments is known as commutation. This process involves the reversal of current in the coil windings of a motor or generator, facilitating the conversion of electrical energy into mechanical energy or vice versa. When the current shifts, there can be a brief moment where arcing occurs between the segments of the commutator, leading to a phenomenon referred to as commutation.

Understanding commutation is critical in electromechanical systems because it affects the motor's efficiency, performance, and longevity. Proper commutation ensures a smooth transfer of current, minimizing energy losses and preventing excessive wear on the commutator and brushes.

Brush sparking, while similar in nature, refers specifically to the brushing surface in contact with the commutator and is a consequence of poor commutation, excessive load, or worn components. Short-circuiting indicates an unintended connection in a circuit, while magnetic interference pertains to external magnetic fields affecting circuit performance, neither of which directly describe the specific phenomenon of arcing between commutator segments.