Why material of brush is carbon in motors why not other
material.
Answer Posted / niraj
carbon brushes have less friction and thus offer lubrication .
| Is This Answer Correct ? | 3 Yes | 3 No |
Post New Answer View All Answers
WHat is the general checks required for Dry type transformers
What is slope...? Explain slope 1 and slope 2...?
What is the dependency of stiffness on load angle??
which pump used in STP
Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?
what will happen if OLR CT in all phases are short circuted
I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?
what is meant by flywheel and its role in retardation test
what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?
how to measure earth resistance of a substation
I have 4 busbar of 1000 ampere. we use 4 busbar to make 4000 ampere in one phase.my problem is that when we applied 60% load on that then busbar produced high noise.what is the reason of that and how can i minimize that noise.
draw 3 phase rectifier diagram
How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?
Difference between shunt, PMG and AREP excitation. Which is the most reliable between PMG and AREP.
tell me about roaster switch .& what is the function in transmission & distribution?