what is the function of a commutator in a dc generator?
Answer Posted / ravi ranjan gupta
it rectifies the output alternating current so as to produce
unidirectional alternating current i.e pulsating DC.it
reverse the negative polarity current to a positive one so
as the output is a pulsating DC
| Is This Answer Correct ? | 146 Yes | 10 No |
Post New Answer View All Answers
If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.
The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?
Dear Sir I am living in Jaipur Rajasthan now I did complete my b tech degree in electrical engineering in 2012 Sir how I gate certificate of competency for electrical supervisor
How to derive detailed design of Suitable bus Bar for 100A for 6.6KV?
How many points does a Circuit can have?
what is the difference between changer, converter and transformer?
what is the affect of earth's magnetic field on the frequency used in aircraft???
A 400KVA transformer has 400 Hz frequency. If the frequency is changed to 50 Hz, then what will be the new KVA rating?
i have done diploma and btech in EE and live in Chandigarh so kindly help me how can i make my competency certificate in my area.
what is integrated ac contact circuit
what are the different methods for the starting of a synchronous motor.
Why cables and busbar both needed in LT Panels?
how works inductive &capacitive sensors?
How to test REF relay testing for LV panel as per Kahramaa standard?
what is effect of length of air gap on performance of dc motor and generator?