Interested to Buy Any Domain ? << Click Here >> for more details...
what is the function of commutator in dc motor?
- 52 Answers
- 182083 Views
- Aviation, HP, Raj Construction, TCE, University Exams, I also Faced
- E-Mail Answers
Answer Posted / saad
first of all ,it is dc motor not a generator.
We are already giving it a dc current ,so normally there
should not have been any need of commutator'
but as the armature is rotating, with every half
rotation ,the direction of rotation is reversed.
so it should be rotating in anti_clock wise direction for
half cycle and in clock_wise direction for next half cycle.
to cater this ,the direction of current should be reversed
after every half cycle.
that's why a commutator is used to change the direction of
current to cater the problem of torque
| Is This Answer Correct ? | 169 Yes | 23 No |
Post New Answer View All Answers
how to failure indution motor insulation & how to improve heat in motor insulation
why there using acb enclosure in big buildings
power transmission pole used one support , that only for support or earthing
what are the advantages and disadvantages of oil filled cables over XLPE cables
how we decide scurt (disc) of insulator with respect to kv rating
Why there are some equipment(i.e:TV) that using 2-pin plug instead of three? What happen if there is current leakage? Are we going to get electric shock??
please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in
5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA
what is the circutor?why we use it ?
Where is the best place to mount distribution panel in a house.
Write down the name of 2 lady Bir Pratin of Bangladesh
Why let through energy not considered for ACB breaker while cable sizing?
what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker
To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors
