
Motor Commutator and Poor Commutation
Flashcard
•
Physics
•
Vocational training
•
Practice Problem
•
Easy
Mark Frost
Used 2+ times
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5 questions
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1.
FLASHCARD QUESTION
Front
What is a Motor Commutator?
Back
A motor commutator is a rotary switch in electric motors that periodically reverses the current direction between the rotor and the external circuit.
2.
FLASHCARD QUESTION
Front
What is Poor Commutation?
Back
Poor commutation refers to the undesirable sparking or arcing at the commutator segments, which can lead to inefficient motor operation and damage.
3.
FLASHCARD QUESTION
Front
What causes sparking in a commutator?
Back
Sparking in a commutator can be caused by factors such as worn brushes, uneven commutator surface, or incorrect brush tension.
4.
FLASHCARD QUESTION
Front
How can commutation be improved in electric motors?
Back
Commutation can be improved by using high-quality brushes, ensuring proper brush alignment, and maintaining a smooth commutator surface.
5.
FLASHCARD QUESTION
Front
What is the role of brushes in a motor commutator?
Back
Brushes in a motor commutator conduct current between stationary wires and the rotating commutator, playing a crucial role in the motor's operation.
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