Question
Download Solution PDFWhat is the difference of DC voltages in adjoining brushes?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF- The difference in DC voltages between adjoining brushes in a DC machine depends on the machine's design and operating conditions.
- In a DC machine, the voltage difference between adjoining brushes is influenced by factors such as the number of poles, armature speed, and the configuration of the winding.
- Under normal operating conditions in a well-designed DC machine, the difference in DC voltages between adjoining brushes is typically very close to zero.
- This is because the brushes are in physical contact with the commutator segments, ensuring electrical continuity and a relatively uniform voltage distribution along the commutator.
- The voltage drop across each brush is negligible when compared to the overall voltage supplied to the armature.
Here, option 3 is correct.
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