why we use carbon brush in exciter&genrator?
Answer Posted / ramesh
Brushes are used in Exciter to facilitate current in
revolving rotor where Field winding is placed. In generators
for Rotor earth fault and as earth to remove any static
current induced in the rotor.
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me
what are the advantages disadvantages of connecting high voltage block( 1:1 transformers) transformers between the turbo generators and busbars.
Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.
what is the Transformer Impedence?How can calculate?
Why the magneti fields are not passes from southpole to north pole
technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"
What is the difference between grid and off- grid system??
A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.
What are the advantages and disadvantages of negative feed back?
How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.
WHAT ARE THE EFFECTS OF SERIES RESONANCE AND PARALLEL RESONANCE ON THE CIRCUITS PARAMETERS?
Can any body tell me the different types of LT cables & their application.
If breaker is undefined position, first step to do.
FEINGING DECREASES THE FLUX DENSITY IN THE AIR GAP. HOW?
WHAT IS MEANT BY DERATING OF THYRISTOR?