Why we use Carbon & graphite mixxed brushes in the DC motor?
Answer Posted / guest
carbon is hard material compared to graphiate so it will
give a stainsail strength of graphite at the time of full
load runing condition.and graphite use for the just collect
the current and passing.
| Is This Answer Correct ? | 5 Yes | 6 No |
Post New Answer View All Answers
What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning
How to back charge the Gas turbine generator
what is cathodic protection and why it use in industries?
How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.
Which is the oldest hydropower plant in india?
why the protection turbo generators is most complex?
any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?
If VFD is On but no starting commond on it. so how many outpout voltages of VFD
How can we calculate the motor frame sizes?
which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?
What is the comparison of PILC and XLPE cable
what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????
What is the dc grounding system and what is diff between AC/DC grounding system?
Explain the process of commutation in a dc machine.
what should be the acceptrd value of winding resistance for 2.5MVA transformer